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Eridanus III and DELVE 1: Carbon-rich Primordial Star Clusters or the Smallest Dwarf Galaxies?
- Volume 19, Issue 42 - article #4
- Joshua D. Simon, Ting S. Li, Alexander P. Ji, Andrew B. Pace, Terese T. Hansen, William Cerny, Ivanna Escala, Sergey E. Koposov, Alex Drlica-Wagner, Sidney Mau, Evan N. Kirby
- https://arxiv.org/abs/2410.08276
LAMOST J1010+2358 is not a Pair-Instability Supernova Relic
- Volume 19, Issue 18 - article #2
- Pierre N. Thibodeaux, Alexander P. Ji, William Cerny, Evan N. Kirby, Joshua D. Simon
- https://arxiv.org/abs/2404.17078
Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream. (arXiv:2401.02476v1 [astro-ph.GA])
- Volume 19, Issue 2 - article #2
- Sam A. Usman, Alexander P. Ji, Ting S. Li, Andrew B. Pace, Lara R. Cullinane, Gary S. Da Costa, Sergey E. Koposov, Geraint F. Lewis, Daniel B. Zucker, Vasily Belokurov, Joss Bland-Hawthorn, Peter S. Ferguson, Terese T. Hansen, Guilherme Limberg, Sarah L. Martell, Madeleine McKenzie, Joshua D. Simon
- http://arxiv.org/abs/2401.02476
Spectroscopic Analysis of Milky Way Outer Halo Satellites: Aquarius II and Boötes II
- Volume 18, Issue 25 - article #7
- Jordan Bruce, Ting S. Li, Andrew B. Pace, Mairead Heiger, Ying-Yi Song, Joshua D. Simon
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/acc943
Metal Mixing in the R-Process Enhanced Ultra-Faint Dwarf Galaxy Reticulum II. (arXiv:2207.03499v2 [astro-ph.GA] UPDATED)
- Volume 18, Issue 8 - article #6
- Alexander P. Ji, Joshua D. Simon, Ian U. Roederer, Ekaterina Magg, Anna Frebel, Christian I. Johnson, Ralf S. Klessen, Mattis Magg, Gabriele Cescutti, Mario Mateo, Maria Bergemann, John I. Bailey III
- http://arxiv.org/abs/2207.03499
Metal Mixing in the r-process Enhanced Ultrafaint Dwarf Galaxy Reticulum II
- Volume 18, Issue 7 - article #12
- Alexander P. Ji, Joshua D. Simon, Ian U. Roederer, Ekaterina Magg, Anna Frebel, Christian I. Johnson, Ralf S. Klessen, Mattis Magg, Gabriele Cescutti, Mario Mateo
- Astronomical Journal
- https://doi.org/10.3847/1538-3881/acad84
Timing the r-process Enrichment of the Ultra-faint Dwarf Galaxy Reticulum II
- Volume 18, Issue 7 - article #14
- Joshua D. Simon, Thomas M. Brown, BurÃ§in Mutlu-Pakdil, Alexander P. Ji, Alex Drlica-Wagner, Roberto J. Avila, Clara E. MartÃnez-VÃ¡zquez, Ting S. Li, Eduardo Balbinot, Keith Bechtol
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/aca9d1
Spectroscopic analysis of Milky Way outer halo satellites: Aquarius II and Bootes II. (arXiv:2302.03708v1 [astro-ph.GA])
- Volume 18, Issue 6 - article #4
- Jordan Bruce, Ting S. Li, Andrew B. Pace, Mairead Heiger, Ying-Yi Song, Joshua D. Simon
- http://arxiv.org/abs/2302.03708
Detailed Chemical Abundances of Stars in the Outskirts of the Tucana II Ultrafaint Dwarf Galaxy
- Volume 18, Issue 3 - article #8
- Anirudh Chiti, Anna Frebel, Alexander P. Ji, Mohammad K. Mardini, Xiaowei Ou, Joshua D. Simon, Helmut Jerjen, Dongwon Kim, John E. Norris
- Astronomical Journal
- https://doi.org/10.3847/1538-3881/aca416
Timing the r-Process Enrichment of the Ultra-Faint Dwarf Galaxy Reticulum II. (arXiv:2212.00810v1 [astro-ph.GA])
- Volume 17, Issue 48 - article #6
- Joshua D. Simon, Thomas M. Brown, Burçin Mutlu-Pakdil, Alexander P. Ji, Alex Drlica-Wagner, Roberto J. Avila, Clara E. Martínez-Vázquez, Ting S. Li, Eduardo Balbinot, Keith Bechtol, Anna Frebel, Marla Geha, Terese T. Hansen, David J. James, Andrew B. Pace, M. Aguena, O. Alves, F. Andrade-Oliveira, J. Annis, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, J. De Vicente, S. Desai, P. Doel, S. Everett, I. Ferrero, J. Frieman, J. García-Bellido, M. Gatti, D. W. Gerdes, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, K. Kuehn, N. Kuropatkin, J. L. Marshall, J. Mena-Fernández, R. Miquel, A. Palmese, F. Paz-Chinchón, M. E. S. Pereira, A. Pieres, et al. (15 additional authors not shown)
- http://arxiv.org/abs/2212.00810
Detailed chemical abundances of stars in the outskirts of the Tucana II ultra-faint dwarf galaxy. (arXiv:2205.01740v1 [astro-ph.GA])
- Volume 17, Issue 18 - article #1
- Anirudh Chiti, Anna Frebel, Alexander P. Ji, Mohammad K. Mardini, Xiaowei Ou, Joshua D. Simon, Kaitlin C. Rasmussen, Helmut Jerjen, Dongwon Kim, John E. Norris
- http://arxiv.org/abs/2205.01740
A Statistical Detection of Wide Binary Systems in the Ultrafaint Dwarf Galaxy Reticulum II
- Volume 17, Issue 18 - article #9
- Mohammadtaher Safarzadeh, Joshua D. Simon, Abraham Loeb
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ac626e
Kinematics of Antlia 2 and Crater 2 from the Southern Stellar Stream Spectroscopic Survey ( S 5 )
- Volume 16, Issue 44 - article #6
- Alexander P. Ji, Sergey E. Koposov, Ting S. Li, Denis Erkal, Andrew B. Pace, Joshua D. Simon, Vasily Belokurov, Lara R. Cullinane, Gary S. Da Costa, Kyler Kuehn, Geraint F. Lewis, Dougal Mackey, Nora Shipp, Jeffrey D. Simpson, Daniel B. Zucker, Terese T. Hansen, Joss Bland-Hawthorn (S5 Collaboration)
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/921/1/32
$S^5$: The Orbital and Chemical Properties of One Dozen Stellar Streams. (arXiv:2110.06950v1 [astro-ph.GA])
- Volume 16, Issue 42 - article #1
- Ting S. Li, Alexander P. Ji, Andrew B. Pace, Denis Erkal, Sergey E. Koposov, Nora Shipp, Gary S. Da Costa, Lara R. Cullinane, Kyler Kuehn, Geraint F. Lewis, Dougal Mackey, Jeffrey D. Simpson, Daniel B. Zucker, Peter S. Ferguson, Sarah L. Martell, Joss Bland-Hawthorn, Eduardo Balbinot, Kiyan Tavangar, Alex Drlica-Wagner, Gayandhi M. De Silva1, Joshua D. Simon, S5 Collaboration
- http://arxiv.org/abs/2110.06950
Resolved Dwarf Galaxy Searches within ∼5 Mpc with the Vera Rubin Observatory and Subaru Hyper Suprime-Cam
- Volume 16, Issue 38 - article #11
- BurÃ§in Mutlu-Pakdil, David J. Sand, Denija CrnojeviÄ, Alex Drlica-Wagner, Nelson Caldwell, Puragra Guhathakurta, Anil C. Seth, Joshua D. Simon, Jay Strader,, Elisa Toloba
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/918/2/88
The Most Metal-poor Stars in the Magellanic Clouds are $r$-process Enhanced. (arXiv:2108.10880v1 [astro-ph.GA])
- Volume 16, Issue 35 - article #6
- Henrique Reggiani, Kevin C. Schlaufman, Andrew R. Casey, Joshua D. Simon, andAlexander P. Ji
- http://arxiv.org/abs/2108.10880
A Deeper Look at DES Dwarf Galaxy Candidates: Grus i and Indus ii
- Volume 16, Issue 32 - article #5
- Sarah A. Cantu, Andrew B. Pace, Jennifer Marshall, Louis E. Strigari, Denija Crnojevic, Joshua D. Simon, A. Drlica-Wagner, K. Bechtol, Clara E. MartÃnez-VÃ¡zquez, B. Santiago, A. Amara, K. M. Stringer, H. T. Diehl, M. Aguena, S. Allam, S. Avila, D. Brooks, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. Da Costa, J. De Vicente, S. Desai, P. Doel, T. F. Eifler, S. Everett, J. Frieman, J. GarcÃa-Bellido, E. Gaztanaga, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, M. A. G. Maia, F. Menanteau, R. Miquel, A. Palmese, F. Paz-ChinchÃ³n, A. A. Plazas, E. Sanchez, V. Scarpine, M. Schubnell, S. Serrano, I. Sevilla-Noarbe, M. Smith, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, G. Tarle, A. R. Walker, R. D. Wilkinson (DES Collaboration)
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/916/2/81
Kinematics of Antlia 2 and Crater 2 from The Southern Stellar Stream Spectroscopic Survey (S5). (arXiv:2106.12656v1 [astro-ph.GA])
- Volume 16, Issue 26 - article #1
- Alexander P. Ji, Sergey E. Koposov, Ting S. Li, Denis Erkal, Andrew B. Pace, Joshua D. Simon, Vasily Belokurov, Lara R. Cullinane, Gary S. Da Costa, Kyler Kuehn, Geraint F. Lewis, Dougal Mackey, Nora Shipp, Jeffrey D. Simpson, Daniel B. Zucker, Terese T. Hansen, Joss Bland-Hawthorn, S5 Collaboration
- http://arxiv.org/abs/2106.12656
An extended halo around an ancient dwarf galaxy. (arXiv:2012.02309v1 [astro-ph.GA])
- Volume 15, Issue 50 - article #1
- Anirudh Chiti, Anna Frebel, Joshua D. Simon, Denis Erkal, Laura J. Chang, Lina Necib, Alexander P. Ji, Helmut Jerjen, Dongwon Kim, John E. Norris
- http://arxiv.org/abs/2012.02309
The R -Process Alliance: Fourth Data Release from the Search for R -process-enhanced Stars in the Galactic Halo
- Volume 15, Issue 32 - article #15
- Erika M. Holmbeck, Terese T. Hansen, Timothy C. Beers, Vinicius M. Placco, Devin D. Whitten, Kaitlin C. Rasmussen, Ian U. Roederer, Rana Ezzeddine, Charli M. Sakari, Anna Frebel, Maria R. Drout, Joshua D. Simon, Ian B. Thompson, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Georges Kordopatis, Andrea Kunder, Jorge MelÃ©ndez, Julio F. Navarro, Warren A. Reid, George Seabroke, Matthias Steinmetz, Fred Watson,, Rosemary F. Ä . Wyse
- The Astrophysical Journal Supplement Series
- http://iopscience.iop.org/0067-0049/249/2/30
The $R$-Process Alliance: Fourth Data Release from the Search for $r$-Process-Enhanced Stars in the Galactic Halo. (arXiv:2007.00749v1 [astro-ph.SR])
- Volume 15, Issue 27 - article #4
- Erika M. Holmbeck, Terese T. Hansen, Timothy C. Beers, Vinicius M. Placco, Devin D. Whitten, Kaitlin C. Rasmussen, Ian U. Roederer, Rana Ezzeddine, Charli M. Sakari, Anna Frebel, Maria R. Drout, Joshua D. Simon, Ian B. Thompson, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Georges Kordopatis, Andrea Kunder, Jorge Melendez, Julio F. Navarro, Warren A.Reid, George Seabroke, Matthias Steinmetz, Fred Watson, Rosemary F.G. Wyse
- http://arxiv.org/abs/2007.00749
The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
- Volume 15, Issue 26 - article #13
- Romina Ahumada, Carlos Allende Prieto, AndrÃ©s Almeida, Friedrich Anders, Scott F. Anderson, Brett H. Andrews, Borja Anguiano, Riccardo Arcodia, Eric Armengaud, Marie Aubert, Santiago Avila, Vladimir Avila-Reese, Carles Badenes, Christophe Balland, Kat Barger, Jorge K. Barrera-Ballesteros, Sarbani Basu, Julian Bautista, Rachael L. Beaton, Timothy C. Beers, B. Izamar T. Benavides, Chad F. Bender, Mariangela Bernardi, Matthew Bershady, Florian Beutler, Christian Moni Bidin, Jonathan Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael R. Blanton, MÃ©dÃ©ric Boquien, Jura Borissova, Jo Bovy, W. N. Brandt, Jonathan Brinkmann, Joel R. Brownstein, Kevin Bundy, Martin Bureau, Adam Burgasser, Etienne Burtin, Mariana Cano-DÃaz, Raffaella Capasso, Michele Cappellari, Ricardo Carrera, SolÃ¨ne Chabanier, William Chaplin, Michael Chapman, Brian Cherinka, Cristina Chiappini, Peter Doohyun Choi, S. Drew Chojnowski, Haeun Chung, Nicolas Clerc, Damien Coffey, Julia M. Comerford, Johan Comparat, Luiz da Costa, Marie-Claude Cousinou, Kevin Covey, Jeffrey D. Crane, Katia Cunha, Gabriele da Silva Ilha, Yu Sophia Dai, Sanna B. Damsted, Jeremy Darling, James W. Davidson Jr., Roger Davies, Kyle Dawson, Nikhil De, Axel de la Macorra, Nathan De Lee, Anna BÃ¡rbara de Andrade Queiroz, Alice Deconto Machado, Sylvain de la Torre, Flavia DellâAgli, HÃ©lion du Mas des Bourboux, Aleksandar M. Diamond-Stanic, Sean Dillon, John Donor, Niv Drory, Chris Duckworth, Tom Dwelly, Garrett Ebelke, Sarah Eftekharzadeh, Arthur Davis Eigenbrot, Yvonne P. Elsworth, Mike Eracleous, Ghazaleh Erfanianfar, Stephanie Escoffier, Xiaohui Fan, Emily Farr, JosÃ© G. FernÃ¡ndez-Trincado, Diane Feuillet, Alexis Finoguenov, Patricia Fofie, Amelia Fraser-McKelvie, Peter M. Frinchaboy, Sebastien Fromenteau, Hai Fu, LluÃs Galbany, Rafael A. Garcia, D. A. GarcÃa-HernÃ¡ndez, Luis Alberto Garma Oehmichen, Junqiang Ge, Marcio Antonio Geimba Maia, Doug Geisler, Joseph Gelfand, Julian Goddy, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul Green, Catherine J. Grier, Hong Guo, Julien Guy, Paul Harding, Sten Hasselquist, Adam James Hawken, Christian R. Hayes, Fred Hearty, S. Hekker, David W. Hogg, Jon A. Holtzman, Danny Horta, Jiamin Hou, Bau-Ching Hsieh, Daniel Huber, Jason A. S. Hunt, J. Ider Chitham, Julie Imig, Mariana Jaber, Camilo Eduardo Jimenez Angel, Jennifer A. Johnson, Amy M. Jones, Henrik JÃ¶nsson, Eric Jullo, Yerim Kim, Karen Kinemuchi, Charles C. Kirkpatrick IV, George W. Kite, Mark Klaene, Jean-Paul Kneib, Juna A. Kollmeier, Hui Kong, Marina Kounkel, Dhanesh Krishnarao, Ivan Lacerna, Ting-Wen Lan, Richard R. Lane, David R. Law, Jean-Marc Le Goff, Henry W. Leung, Hannah Lewis, Cheng Li, Jianhui Lian, Lihwai Lin, Dan Long, PenÃ©lope Longa-PeÃ±a, Britt Lundgren, Brad W. Lyke, J. Ted Mackereth, Chelsea L. MacLeod, Steven R. Majewski, Arturo Manchado, Claudia Maraston, Paul Martini, Thomas Masseron, Karen L. Masters, Savita Mathur, Richard M. McDermid, Andrea Merloni, Michael Merrifield, Szabolcs MÃ©szÃ¡ros, Andrea Miglio, Dante Minniti, Rebecca Minsley, Takamitsu Miyaji, Faizan Gohar Mohammad, Benoit Mosser, Eva-Maria Mueller, Demitri Muna, Andrea MuÃ±oz-GutiÃ©rrez, Adam D. Myers, Seshadri Nadathur, Preethi Nair, Kirpal Nandra, Janaina Correa do Nascimento, Rebecca Jean Nevin, Jeffrey A. Newman, David L. Nidever, Christian Nitschelm, Pasquier Noterdaeme, Julia E. OâConnell, Matthew D. Olmstead, Daniel Oravetz, Audrey Oravetz, Yeisson Osorio, Zachary J. Pace, Nelson Padilla, Nathalie Palanque-Delabrouille, Pedro A. Palicio, Hsi-An Pan, Kaike Pan, James Parker, Romain Paviot, Sebastien Peirani, Karla PeÃ±a RamÅez, Samantha Penny, Will J. Percival, Ismael Perez-Fournon, Ignasi PÃ©rez-RÃ fols, Patrick Petitjean, Matthew M. Pieri, Marc Pinsonneault, Vijith Jacob Poovelil, Joshua Tyler Povick, Abhishek Prakash, Adrian M. Price-Whelan, M. Jordan Raddick, Anand Raichoor, Amy Ray, Sandro Barboza Rembold, Mehdi Rezaie, Rogemar A. Riffel, RogÃ©rio Riffel, Hans-Walter Rix, Annie C. Robin, A. Roman-Lopes, Carlos RomÃ¡n-ZÃºÃ±iga, Benjamin Rose, Ashley J. Ross, Graziano Rossi, Kate Rowlands, Kate H. R. Rubin, Mara Salvato, Ariel G. SÃ¡nchez, Laura SÃ¡nchez-Menguiano, JosÃ© R. SÃ¡nchez-Gallego, Conor Sayres, Adam Schaefer, Ricardo P. Schiavon, Jaderson S. Schimoia, Edward Schlafly, David Schlegel, Donald P. Schneider, Mathias Schultheis, Axel Schwope, Hee-Jong Seo, Aldo Serenelli, Arman Shafieloo, Shoaib Jamal Shamsi, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, Raphael Shirley, VÃctor Silva Aguirre, Joshua D. Simon, M. F. Skrutskie, AnÅ¾e Slosar, Rebecca Smethurst, Jennifer Sobeck, Bernardo Cervantes Sodi, Diogo Souto, David V. Stark, Keivan G. Stassun, Matthias Steinmetz, Dennis Stello, Julianna Stermer, Thaisa Storchi-Bergmann, Alina Streblyanska, Guy S. Stringfellow, Amelia Stutz, Genaro SuÃ¡rez, Jing Sun, Manuchehr Taghizadeh-Popp, Michael S. Talbot, Jamie Tayar, Aniruddha R. Thakar, Riley Theriault, Daniel Thomas, Zak C. Thomas, Jeremy Tinker, Rita Tojeiro, Hector Hernandez Toledo, Christy A. Tremonti, Nicholas W. Troup, Sarah Tuttle, Eduardo Unda-Sanzana, Marica Valentini, Jaime Vargas-GonzÃ¡lez, Mariana Vargas-MagaÃ±a, Jose Antonio VÃ¡zquez-Mata, M. Vivek, David Wake, Yuting Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, Vivienne Wild, John C. Wilson, Robert F. Wilson, Nathan Wolthuis, W. M. Wood-Vasey, Renbin Yan, Meng Yang, Christophe YÃ¨che, Olga Zamora, Pauline Zarrouk, Gail Zasowski, Kai Zhang, Cheng Zhao, Gongbo Zhao, Zheng Zheng, Zheng Zheng, Guangtun Zhu,, Hu Zou
- The Astrophysical Journal Supplement Series
- http://iopscience.iop.org/0067-0049/249/1/3
Dynamical Histories of the Crater II and Hercules Dwarf Galaxies
- Volume 14, Issue 38 - article #17
- Sal Wanying Fu, Joshua D. Simon,, Alex G. AlarcÃ³n Jara
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/883/1/11
The Faintest Dwarf Galaxies. (arXiv:1901.05465v1 [astro-ph.GA])
- Volume 14, Issue 3 - article #7
- Joshua D. Simon (Carnegie Observatories)
- http://arxiv.org/abs/1901.05465
Chemical Abundances in the Ultra-faint Dwarf Galaxies Grus I and Triangulum II: Neutron-capture Elements as a Defining Feature of the Faintest Dwarfs
- Volume 14, Issue 2 - article #4
- Alexander P. Ji, Joshua D. Simon, Anna Frebel, Kim A. Venn,, Terese T. Hansen
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/870/2/83
Dynamical Histories of the Crater II and Hercules Dwarf Galaxies. (arXiv:1901.00594v1 [astro-ph.GA])
- Volume 14, Issue 1 - article #1
- Sal Wanying Fu, Joshua D. Simon, Alex G. Alarcón Jara
- http://arxiv.org/abs/1901.00594
The Origin of the 300 km s −1 Stream near Segue 1
- Volume 13, Issue 41 - article #16
- Sal Wanying Fu, Joshua D. Simon, Matthew Shetrone, Jo Bovy, Timothy C. Beers, J. G. FernÃ¡ndez-Trincado, Vinicius M. Placco, Olga Zamora, Carlos Allende Prieto, D. A. GarcÃa-HernÃ¡ndez, Paul Harding, Inese Ivans, Richard Lane, Christian Nitschelm, Alexandre Roman-Lopes,, Jennifer Sobeck
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/866/1/42
Chemical Abundances in the Ultra-Faint Dwarf Galaxies Grus I and Triangulum II: Neutron-Capture Elements as a Defining Feature of the Faintest Dwarfs. (arXiv:1809.02182v1 [astro-ph.GA])
- Volume 13, Issue 37 - article #1
- Alexander P. Ji, Joshua D. Simon, Anna Frebel, Kim A. Venn, Terese T. Hansen
- http://arxiv.org/abs/1809.02182
The initial mass function in the Coma Berenices dwarf galaxy from deep near-infrared HST observations. (arXiv:1806.08380v1 [astro-ph.GA])
- Volume 13, Issue 26 - article #5
- Mario Gennaro, Marla Geha, Kirill Tchernyshyov, Thomas M. Brown, Roberto J. Avila, Charlie Conroy, Ricardo R. Muñoz, Joshua D. Simon, Jason Tumlinson
- http://arxiv.org/abs/1806.08380
A MegaCam Survey of Outer Halo Satellites. I. Description of the Survey. (arXiv:1806.06889v1 [astro-ph.GA])
- Volume 13, Issue 25 - article #1
- Ricardo R. Munoz, Patrick Cote, Felipe A. Santana, Marla Geha, Joshua D. Simon, Grecco A. Oyarzun, Peter Stetson, S. G. Djorgovski
- http://arxiv.org/abs/1806.06889
A MegaCam Survey of Outer Halo Satellites. III. Photometric and Structural Parameters
- Volume 13, Issue 24 - article #12
- Ricardo R. MuÃ±oz, Patrick CÃ´tÃ©, Felipe A. Santana, Marla Geha, Joshua D. Simon, Grecco A. OyarzÃºn, Peter B. Stetson,, S. G. Djorgovski
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/860/1/66
The R -process Alliance: First Release from the Southern Search for R -process-enhanced Stars in the Galactic Halo
- Volume 13, Issue 19 - article #20
- Terese T. Hansen, Erika M. Holmbeck, Timothy C. Beers, Vinicius M. Placco, Ian U. Roederer, Anna Frebel, Charli M. Sakari, Joshua D. Simon,, Ian B. Thompson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/858/2/92
Gaia Proper Motions and Orbits of the Ultra-Faint Milky Way Satellites. (arXiv:1804.10230v1 [astro-ph.GA])
- Volume 13, Issue 18 - article #6
- Joshua D. Simon (Carnegie Observatories)
- http://arxiv.org/abs/1804.10230
The Origin of the 300 km s$^{-1}$ Stream Near Segue 1. (arXiv:1804.08622v1 [astro-ph.GA])
- Volume 13, Issue 17 - article #20
- Sal Wanying Fu, Joshua D. Simon, Matthew Shetrone, Jo Bovy, J. G. Fernández-Trincado, Vinicius M. Placco, Olga Zamora, Carlos Allende Prieto, D. A. García-Hernández, Paul Harding, Inese Ivans, Richard Lane, Christian Nitschelm, Alexandre Roman-Lopes, Jennifer Sobeck
- http://arxiv.org/abs/1804.08622
The $R$-Process Alliance: First Release from the Southern Search for $r$-Process-Enhanced Stars in the Galactic Halo. (arXiv:1804.03114v1 [astro-ph.SR])
- Volume 13, Issue 15 - article #13
- Terese T. Hansen, Erika M. Holmbeck, Timothy C. Beers, Vinicius M. Placco, Ian U. Roederer, Anna Frebel, Charli M. Sakari, Joshua D. Simon, Ian B. Thompson
- http://arxiv.org/abs/1804.03114
Detection of a Population of Carbon-enhanced Metal-poor Stars in the Sculptor Dwarf Spheroidal Galaxy
- Volume 13, Issue 14 - article #19
- Anirudh Chiti, Joshua D. Simon, Anna Frebel, Ian B. Thompson, Stephen A. Shectman, Mario Mateo, John I. Bailey III, Jeffrey D. Crane,, Matthew Walker
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/856/2/142
Detection of a population of carbon-enhanced metal-poor stars in the Sculptor dwarf spheroidal galaxy. (arXiv:1803.04538v1 [astro-ph.GA])
- Volume 13, Issue 11 - article #1
- Anirudh Chiti, Joshua D. Simon, Anna Frebel, Ian B. Thompson, Stephen A. Shectman, Mario Mateo, John I. Bailey III, Jeffrey D. Crane, Matthew Walker
- http://arxiv.org/abs/1803.04538
Evidence of a non universal stellar Initial Mass Function. Insights from HST optical imaging of 6 Ultra Faint Dwarf Milky Way Satellites. (arXiv:1801.06195v1 [astro-ph.GA])
- Volume 13, Issue 4 - article #5
- Mario Gennaro, Kirill Tchernyshyov, Thomas M. Brown, Marla Geha, Roberto J. Avila, Puragra Guhathakurta, Jason S. Kalirai, Evan N. Kirby, Alvio Renzini, Joshua D. Simon, Jason Tumlinson, Luis C. Vargas
- http://arxiv.org/abs/1801.06195
A Neutron Star Binary Merger Model for GW170817/GRB170817a/SSS17a. (arXiv:1710.05453v1 [astro-ph.HE])
- Volume 12, Issue 42 - article #5
- Ariadna Murguia-Berthier, Enrico Ramirez-Ruiz, Charles D. Kilpatrick, Ryan J. Foley, Daniel Kasen, William H. Lee, Anthony L. Piro, David A. Coulter, Maria R. Drout, Barry F. Madore, Benjamin J. Shappee, Yen-Chen Pan, J. Xavier Prochaska, Armin Rest, César Rojas-Bravo, Matthew R. Siebert, Joshua D. Simon
- http://arxiv.org/abs/1710.05453
Electromagnetic Evidence that SSS17a is the Result of a Binary Neutron Star Merger. (arXiv:1710.05434v1 [astro-ph.HE])
- Volume 12, Issue 42 - article #17
- Charles D. Kilpatrick, Ryan J. Foley, Daniel Kasen, Ariadna Murguia-Berthier, Enrico Ramirez-Ruiz, David A. Coulter, Maria R. Drout, Anthony L. Piro, Benjamin J. Shappee, Konstantina Boutsia, Carlos Contreras, Francesco Di Mille, Barry F. Madore, Nidia Morrell, Yen-Chen Pan, J. Xavier Prochaska, Armin Rest, César Rojas-Bravo, Matthew R. Siebert, Joshua D. Simon, Natalie Ulloa
- http://arxiv.org/abs/1710.05434
The Unprecedented Properties of the First Electromagnetic Counterpart to a Gravitational Wave Source. (arXiv:1710.05440v1 [astro-ph.HE])
- Volume 12, Issue 42 - article #61
- Matthew R. Siebert, Ryan J. Foley, Maria R. Drout, Charles D. Kilpatrick, Benjamin J. Shappee, David A. Coulter, Daniel Kasen, Barry F. Madore, Ariadna Murguia-Berthier, Yen-Chen Pan, Anthony L. Piro, J. Xavier Prochaska, Enrico Ramirez-Ruiz, Armin Rest, Carlos Contreras, Nidia Morrell, César Rojas-Bravo, Joshua D. Simon
- http://arxiv.org/abs/1710.05440
Discovery of a Group of Receding, Variable Halo Stars toward Norma
- Volume 12, Issue 31 - article #14
- Sukanya Chakrabarti, Rodolfo Angeloni, Kenneth Freeman, Benjamin Sargent, Joshua D. Simon, Piotr Konorski, Wolfgang Gieren, Branimir Sesar, Andrew Lipnicky, Leo Blitz, Gibor Basri, William Vacca, Massimo Marengo, Puragra Guhathakurta, Alice Quillen,, Philip Chang
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/844/2/159
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
- Volume 12, Issue 26 - article #8
- Michael R. Blanton, Matthew A. Bershady, Bela Abolfathi, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Javier Alonso-GarcÃa, Friedrich Anders, Scott F. Anderson, Brett Andrews, Erik Aquino-OrtÃz, Alfonso AragÃ³n-Salamanca, Maria Argudo-FernÃ¡ndez, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Kathleen A. Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Dominic Bates, Falk Baumgarten, Julian Bautista, Rachael Beaton, Timothy C. Beers, Francesco Belfiore, Chad F. Bender, Andreas A. Berlind, Mariangela Bernardi, Florian Beutler, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael Blomqvist, Adam S. Bolton, MÃ©dÃ©ric Boquien, Jura Borissova, Remco van den Bosch, Jo Bovy, William N. Brandt, Jonathan Brinkmann, Joel R. Brownstein, Kevin Bundy, Adam J. Burgasser, Etienne Burtin, NicolÃ¡s G. Busca, Michele Cappellari, Maria Leticia Delgado Carigi, Joleen K. Carlberg, Aurelio Carnero Rosell, Ricardo Carrera, Nancy J. Chanover, Brian Cherinka, Edmond Cheung, Yilen GÃ³mez Maqueo Chew, Cristina Chiappini, Peter Doohyun Choi, Drew Chojnowski, Chia-Hsun Chuang, Haeun Chung, Rafael Fernando Cirolini, Nicolas Clerc, Roger E. Cohen, Johan Comparat, Luiz da Costa, Marie-Claude Cousinou, Kevin Covey, Jeffrey D. Crane, Rupert A. C. Croft, Irene Cruz-Gonzalez, Daniel Garrido Cuadra, Katia Cunha, Guillermo J. Damke, Jeremy Darling, Roger Davies, Kyle Dawson, Axel de la Macorra, Flavia DellâAgli, Nathan De Lee, TimothÃ©e Delubac, Francesco Di Mille, Aleks Diamond-Stanic, Mariana Cano-DÃaz, John Donor, Juan JosÃ© Downes, Niv Drory, HÃ©lion du Mas des Bourboux, Christopher J. Duckworth, Tom Dwelly, Jamie Dyer, Garrett Ebelke, Arthur D. Eigenbrot, Daniel J. Eisenstein, Eric Emsellem, Mike Eracleous, Stephanie Escoffier, Michael L. Evans, Xiaohui Fan, Emma FernÃ¡ndez-Alvar, J. G. Fernandez-Trincado, Diane K. Feuillet, Alexis Finoguenov, Scott W. Fleming, Andreu Font-Ribera, Alexander Fredrickson, Gordon Freischlad, Peter M. Frinchaboy, Carla E. Fuentes, LluÃs Galbany, R. Garcia-Dias, D. A. GarcÃa-HernÃ¡ndez, Patrick Gaulme, Doug Geisler, Joseph D. Gelfand, HÃ©ctor Gil-MarÃn, Bruce A. Gillespie, Daniel Goddard, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul J. Green, Catherine J. Grier, James E. Gunn, Hong Guo, Julien Guy, Alex Hagen, ChangHoon Hahn, Matthew Hall, Paul Harding, Sten Hasselquist, Suzanne L. Hawley, Fred Hearty, Jonay I. Gonzalez HernÃ¡ndez, Shirley Ho, David W. Hogg, Kelly Holley-Bockelmann, Jon A. Holtzman, Parker H. Holzer, Joseph Huehnerhoff, Timothy A. Hutchinson, Ho Seong Hwang, HÃ©ctor J. Ibarra-Medel, Gabriele da Silva Ilha, Inese I. Ivans, KeShawn Ivory, Kelly Jackson, Trey W. Jensen, Jennifer A. Johnson, Amy Jones, Henrik JÃ¶nsson, Eric Jullo, Vikrant Kamble, Karen Kinemuchi, David Kirkby, Francisco-Shu Kitaura, Mark Klaene, Gillian R. Knapp, Jean-Paul Kneib, Juna A. Kollmeier, Ivan Lacerna, Richard R. Lane, Dustin Lang, David R. Law, Daniel Lazarz, Youngbae Lee, Jean-Marc Le Goff, Fu-Heng Liang, Cheng Li, Hongyu Li, Jianhui Lian, Marcos Lima, Lihwai Lin, Yen-Ting Lin, Sara Bertran de Lis, Chao Liu, Miguel Angel C. de Icaza Lizaola, Dan Long, Sara Lucatello, Britt Lundgren, Nicholas K. MacDonald, Alice Deconto Machado, Chelsea L. MacLeod, Suvrath Mahadevan, Marcio Antonio Geimba Maia, Roberto Maiolino, Steven R. Majewski, Elena Malanushenko, Viktor Malanushenko, Arturo Manchado, Shude Mao, Claudia Maraston, Rui Marques-Chaves, Thomas Masseron, Karen L. Masters, Cameron K. McBride, Richard M. McDermid, Brianne McGrath, Ian D. McGreer, NicolÃ¡s Medina PeÃ±a, Matthew Melendez, Andrea Merloni, Michael R. Merrifield, Szabolcs Meszaros, Andres Meza, Ivan Minchev, Dante Minniti, Takamitsu Miyaji, Surhud More, John Mulchaey, Francisco MÃ¼ller-SÃ¡nchez, Demitri Muna, Ricardo R. Munoz, Adam D. Myers, Preethi Nair, Kirpal Nandra, Janaina Correa do Nascimento, Alenka Negrete, Melissa Ness, Jeffrey A. Newman, Robert C. Nichol, David L. Nidever, Christian Nitschelm, Pierros Ntelis, Julia E. OâConnell, Ryan J. Oelkers, Audrey Oravetz, Daniel Oravetz, Zach Pace, Nelson Padilla, Nathalie Palanque-Delabrouille, Pedro Alonso Palicio, Kaike Pan, John K. Parejko, Taniya Parikh, Isabelle PÃ¢ris, Changbom Park, Alim Y. Patten, Sebastien Peirani, Marcos Pellejero-Ibanez, Samantha Penny, Will J. Percival, Ismael Perez-Fournon, Patrick Petitjean, Matthew M. Pieri, Marc Pinsonneault, Alice Pisani, RadosÅaw Poleski, Francisco Prada, Abhishek Prakash, Anna BÃ¡rbara de Andrade Queiroz, M. Jordan Raddick, Anand Raichoor, Sandro Barboza Rembold, Hannah Richstein, Rogemar A. Riffel, RogÃ©rio Riffel, Hans-Walter Rix, Annie C. Robin, Constance M. Rockosi, Sergio RodrÃguez-Torres, A. Roman-Lopes, Carlos RomÃ¡n-ZÃºÃ±iga, Margarita Rosado, Ashley J. Ross, Graziano Rossi, John Ruan, Rossana Ruggeri, Eli S. Rykoff, Salvador Salazar-Albornoz, Mara Salvato, Ariel G. SÃ¡nchez, D. S. Aguado, JosÃ© R. SÃ¡nchez-Gallego, Felipe A. Santana, BasÃlio Xavier Santiago, Conor Sayres, Ricardo P. Schiavon, Jaderson da Silva Schimoia, Edward F. Schlafly, David J. Schlegel, Donald P. Schneider, Mathias Schultheis, William J. Schuster, Axel Schwope, Hee-Jong Seo, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, Michael Shull, Joshua D. Simon, Danielle Skinner, M. F. Skrutskie, AnÅ¾e Slosar, Verne V. Smith, Jennifer S. Sobeck, Flavia Sobreira, Garrett Somers, Diogo Souto, David V. Stark, Keivan Stassun, Fritz Stauffer, Matthias Steinmetz, Thaisa Storchi-Bergmann, Alina Streblyanska, Guy S. Stringfellow, Genaro SuÃ¡rez, Jing Sun, Nao Suzuki, Laszlo Szigeti, Manuchehr Taghizadeh-Popp, Baitian Tang, Charling Tao, Jamie Tayar, Mita Tembe, Johanna Teske, Aniruddha R. Thakar, Daniel Thomas, Benjamin A. Thompson, Jeremy L. Tinker, Patricia Tissera, Rita Tojeiro, Hector Hernandez Toledo, Sylvain de la Torre, Christy Tremonti, Nicholas W. Troup, Octavio Valenzuela, Inma Martinez Valpuesta, Jaime Vargas-GonzÃ¡lez, Mariana Vargas-MagaÃ±a, Jose Alberto Vazquez, Sandro Villanova, M. Vivek, Nicole Vogt, David Wake, Rene Walterbos, Yuting Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, David H. Weinberg, Kyle B. Westfall, David G. Whelan, Vivienne Wild, John Wilson, W. M. Wood-Vasey, Dominika Wylezalek, Ting Xiao, Renbin Yan, Meng Yang, Jason E. Ybarra, Christophe YÃ¨che, Nadia Zakamska, Olga Zamora, Pauline Zarrouk, Gail Zasowski, Kai Zhang, Gong-Bo Zhao, Zheng Zheng, Zheng Zheng, Xu Zhou, Zhi-Min Zhou, Guangtun B. Zhu, Manuela Zoccali,, Hu Zou
- The Astronomical Journal
- http://iopscience.iop.org/1538-3881/154/1/28
Complete Element Abundances of Nine Stars in the r-process Galaxy Reticulum II
- Volume 11, Issue 43 - article #22
- Alexander P. Ji, Anna Frebel, Joshua D. Simon,, Anirudh Chiti
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/830/2/93
Maximizing Science in the Era of LSST: A Community-Based Study of Needed US Capabilities. (arXiv:1610.01661v1 [astro-ph.IM])
- Volume 11, Issue 41 - article #6
- Joan Najita (NOAO), Beth Willman (LSST), Douglas P. Finkbeiner (Harvard University), Ryan J. Foley (UC Santa Cruz), Suzanne Hawley (U. Washington), Jeffrey A. Newman (U. Pittsburgh), Gregory Rudnick (U. Kansas), Joshua D. Simon (Carnegie Observatories), David Trilling (Northern Arizona U.), Rachel Street (LCOGT), Adam Bolton (NOAO), Ruth Angus (U. Oxford), Eric F. Bell (U. Michigan), Derek Buzasi (Florida Gulf Coast U.), David Ciardi (IPAC, Caltech), James R. A. Davenport (Western Washington U.), Will Dawson (LLNL), Mark Dickinson (NOAO), Alex Drlica-Wagner (Fermilab), Jay Elias (NOAO), Dawn Erb (U. Wisconsin-Milwaukee), Lori Feaga (U. Maryland), Wen-fai Fong (U. Arizona), Eric Gawiser (Rutgers), Mark Giampapa (NSO), Puragra Guhathakurta (UC Santa Cruz), Jennifer L. Hoffman (U. Denver), Henry Hsieh (Planetary Science Institute), et al. (23 additional authors not shown)
- http://arxiv.org/abs/1610.01661
R-process enrichment from a single event in an ancient dwarf galaxy. (arXiv:1512.01558v4 [astro-ph.GA] UPDATED)
- Volume 11, Issue 39 - article #14
- Alexander P. Ji, Anna Frebel, Anirudh Chiti, Joshua D. Simon
- http://arxiv.org/abs/1512.01558
Complete element abundances of nine stars in the r-process galaxy Reticulum II. (arXiv:1607.07447v1 [astro-ph.GA])
- Volume 11, Issue 31 - article #1
- Alexander P. Ji, Anna Frebel, Joshua D. Simon, Anirudh Chiti
- http://arxiv.org/abs/1607.07447
A MegaCam Survey of Outer Halo Satellites. VI: The Spatially Resolved Star Formation History of the Carina Dwarf Spheroidal Galaxy. (arXiv:1607.05312v1 [astro-ph.GA])
- Volume 11, Issue 30 - article #2
- Felipe A. Santana, Ricardo R. Muñoz, T. J. L. de Boer, Joshua D. Simon, Marla Geha, Patrick Côté, Andrés E. Guzmán, Peter Stetson, S. G. Djorgovski
- http://arxiv.org/abs/1607.05312
High-resolution Spectroscopy of Extremely Metal-poor Stars in the Least-evolved Galaxies: Bootes II
- Volume 11, Issue 6 - article #20
- Alexander P. Ji, Anna Frebel, Joshua D. Simon, and Marla Geha
- The Astrophysical Journal - Volume: 817, Issue: 1
- View article PDF (1.70 MB)
Galactoseismology: Discovery of a cluster of receding, variable halo stars
- Volume 11, Issue 3 - article #5
- Sukanya Chakrabarti, Rodolfo Angeloni, Kenneth Freeman, Benjamin Sargent, Joshua D. Simon, Piotr Konorski, Wolfgang Gieren, Branimir Sesar, Andrew Lipnicky, Leo Blitz, Gibor Basri, Massimo Marengo, William Vacca, Puragra Guhathakurta, Alice Quillen, Philip Chang
- arXiv.org - Astrophysics - Volume: 2016, Issue: 15 Jan
- arXiv:1601.03381 [pdf, other]
High-resolution spectroscopy of extremely metal-poor stars in the least evolved galaxies: Bootes II
- Volume 10, Issue 40 - article #7
- Alexander P. Ji, Anna Frebel, Joshua D. Simon, Marla Geha
- arXiv.org - Astrophysics - Volume: 2015, Issue: 30 Oct
- arXiv:1510.07632 [pdf, other]
Triangulum II: A Very Dense Ultra-Faint Dwarf Galaxy
- Volume 10, Issue 38 - article #10
- Evan N. Kirby (1), Judith G. Cohen (1), Joshua D. Simon (2), Puragra Guhathakurta (3) ((1) Caltech, (2) Carnegie Observatories, (3) UC Santa Cruz)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 16 Oct
- arXiv:1510.03856 [pdf, ps, other]
A Megacam Survey of Outer Halo Satellites. IV. Two Foreground Populations Possibly Associated with the Monoceros Substructure in the Direction of NGC 2419 and Koposov 2
- Volume 10, Issue 22 - article #13
- Julio A. Carballo-Bello, Ricardo R. MuÃ±oz, Jeffrey L. Carlin, Patrick CÃ´tÃ©, Marla Geha, Joshua D. Simon, and S. G. Djorgovski
- The Astrophysical Journal - Volume: 805, Issue: 1
- View article PDF (8.12 MB)
A Megacam Survey of Outer Halo Satellites. IV. Two foreground populations possibly associated with the Monoceros substructure in the direction of NGC2419 and Koposov2
- Volume 10, Issue 13 - article #2
- Julio A. Carballo-Bello, Ricardo R. Munoz, Jeffrey L. Carlin, Patrick Cote, Marla Geha, Joshua D. Simon, S. G. Djorgovski
- arXiv.org - Astrophysics - Volume: 2015, Issue: 3 Apr
- arXiv:1504.00021 [pdf, other]
Chemical Signatures of the First Supernovae in the Sculptor Dwarf Spheroidal Galaxy
- Volume 10, Issue 13 - article #21
- Joshua D. Simon, Heather R. Jacobson, Anna Frebel, Ian B. Thompson, Joshua J. Adams, and Stephen A. Shectman
- The Astrophysical Journal - Volume: 802, Issue: 2
- View article PDF (368 KB)
Chemical Signatures of the First Supernovae in the Sculptor Dwarf Spheroidal Galaxy
- Volume 9, Issue 25 - article #17
- Joshua D. Simon (Carnegie Observatories), Heather R. Jacobson, Anna Frebel (MIT), Ian B. Thompson (Carnegie Observatories), Joshua J. Adams (ASML), Stephen A. Shectman (Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2014, Issue: 19 Dec
- arXiv:1412.5176 [pdf, ps, other]
The Quenching of the Ultra-faint Dwarf Galaxies in the Reionization Era
- Volume 9, Issue 24 - article #69
- Thomas M. Brown, Jason Tumlinson, Marla Geha, Joshua D. Simon, Luis C. Vargas, Don A. VandenBerg, Evan N. Kirby, Jason S. Kalirai, Roberto J. Avila, Mario Gennaro, Henry C. Ferguson, Ricardo R. MuÃ±oz, Puragra Guhathakurta, and Alvio Renzini
- The Astrophysical Journal - Volume: 796, Issue: 2
- View article PDF (1.51 MB)
The Quenching of the Ultra-Faint Dwarf Galaxies in the Reionization Era
- Volume 9, Issue 23 - article #10
- Thomas M. Brown, Jason Tumlinson, Marla Geha, Joshua D. Simon, Luis C. Vargas, Don A. VandenBerg, Evan N. Kirby, Jason S. Kalirai, Roberto J. Avila, Mario Gennaro, Henry C. Ferguson, Ricardo R. Munoz, Puragra Guhathakurta, Alvio Renzini
- arXiv.org - Astrophysics - Volume: 2014, Issue: 10 Oct
- arXiv:1410.0681 [pdf, ps, other]
Dwarf Galaxy Dark Matter Density Profiles Inferred from Stellar and Gas Kinematics
- Volume 9, Issue 21 - article #71
- Joshua J. Adams, Joshua D. Simon, Maximilian H. Fabricius, Remco C. E. van den Bosch, John C. Barentine, Ralf Bender, Karl Gebhardt, Gary J. Hill, Jeremy D. Murphy, R. A. Swaters, Jens Thomas, and Glenn van de Ven
- The Astrophysical Journal - Volume: 789, Issue: 1
- View article PDF (4.70 MB)
Segue 1: An Unevolved Fossil Galaxy from the Early Universe
- Volume 9, Issue 18 - article #12
- Anna Frebel, Joshua D. Simon, and Evan N. Kirby
- The Astrophysical Journal - Volume: 786, Issue: 1
- View article PDF (2.30 MB)
Segue 1: An Unevolved Fossil Galaxy from the Early Universe
- Volume 9, Issue 13 - article #10
- Anna Frebel (MIT), Joshua D. Simon (Carnegie), Evan N. Kirby (Irvine)
- arXiv.org - Astrophysics - Volume: 2014, Issue: 28 Mar
- arXiv:1403.6116 [pdf, ps, other]
The Formation History of the Ultra-Faint Dwarf Galaxies
- Volume 8, Issue 40 - article #10
- Thomas M. Brown, Jason Tumlinson, Marla Geha, Evan Kirby, Don A. VandenBerg, Jason S. Kalirai, Joshua D. Simon, Roberto J. Avila, Ricardo R. Munoz, Puragra Guhathakurta, Alvio Renzini, Henry C. Ferguson, Luis C. Vargas, Mario Gennaro
- arXiv.org - Astrophysics - Volume: 2013, Issue: 4 Oct
- arXiv:1310.0824 [pdf, ps, other]
A MegaCam Survey of Outer Halo Satellites. II. Blue Stragglers in the Lowest Stellar Density Systems
- Volume 8, Issue 36 - article #29
- Felipe A. Santana, Ricardo R. MuÃ±oz, Marla Geha, Patrick CÃ´tÃ©, Peter Stetson, Joshua D. Simon, and S. G. Djorgovski
- The Astrophysical Journal - Volume: 774, Issue: 2
- Abstract References Full text PDF (11.25 MB) Enhanced article HTML
A Mass-Dependent Yield Origin of Neutron-Capture Element Abundance Distributions in Ultra-Faint Dwarfs
- Volume 8, Issue 28 - article #2
- Duane M. Lee, Kathryn V. Johnston, Jason Tumlinson, Bodhisattva Sen, Joshua D. Simon
- arXiv.org - Astrophysics - Volume: 2013, Issue: 12 Jul
- arXiv:1307.2894 [pdf, ps, other]
A Megacam Survey of Outer Halo Satellites. II. Blue Stragglers in the Lowest Stellar Density Systems
- Volume 8, Issue 28 - article #3
- Felipe A. Santana, Ricardo R. Munoz, Marla Geha, Patrick Cote, Peter Stetson, Joshua D. Simon, S. G. Djorgovski
- arXiv.org - Astrophysics - Volume: 2013, Issue: 12 Jul
- arXiv:1307.2236 [pdf, ps, other]
The Stellar Initial Mass Function of Ultra-faint Dwarf Galaxies: Evidence for IMF Variations with Galactic Environment
- Volume 8, Issue 26 - article #24
- Marla Geha, Thomas M. Brown, Jason Tumlinson, Jason S. Kalirai, Joshua D. Simon, Evan N. Kirby, Don A. VandenBerg, Ricardo R. MuÃ±oz, Roberto J. Avila, Puragra Guhathakurta, and Henry C. Ferguson
- The Astrophysical Journal - Volume: 771, Issue: 1
- Abstract References Full text PDF (588 KB) Enhanced article HTML
The Distribution of Alpha Elements in Ultra-faint Dwarf Galaxies
- Volume 8, Issue 14 - article #18
- Luis C. Vargas, Marla Geha, Evan N. Kirby, and Joshua D. Simon
- The Astrophysical Journal - Volume: 767, Issue: 2
- Abstract References Full text PDF (860 KB) Enhanced article HTML
The Distribution of Alpha Elements in Ultra-Faint Dwarf Galaxies
- Volume 8, Issue 9 - article #13
- Luis C. Vargas (1), Marla Geha (1), Evan N. Kirby (2), Joshua D. Simon (3) ((1) Yale University, (2) UC Irvine, (3) Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2013, Issue: 1 Mar
- arXiv:1302.6594 [pdf, ps, other]
The Absolute Magnitude of RRc Variables From Statistical Parallax
- Volume 7, Issue 33 - article #11
- Juna A. Kollmeier, Dorota M. Szczygiel, Christopher R. Burns, Andrew Gould, Ian B. Thompson, George W. Preston, Christopher Sneden, Jeffrey D. Crane, Subo Dong, Barry F. Madore, Nidia Morrell, Jose L. Prieto, Stephen Shectman, Joshua D. Simon, Edward Villanueva
- arXiv.org - Astrophysics - Volume: 2012, Issue: 17 Aug
- arXiv:1208.2689 [pdf, other]
The Primeval Populations of the Ultra-faint Dwarf Galaxies
- Volume 7, Issue 27 - article #39
- Thomas M. Brown, Jason Tumlinson, Marla Geha, Evan N. Kirby, Don A. VandenBerg, Ricardo R. MuÃ±oz, Jason S. Kalirai, Joshua D. Simon, Roberto J. Avila, Puragra Guhathakurta, Alvio Renzini, and Henry C. Ferguson
- The Astrophysical Journal Letters - Volume: 753, Issue: 1
- Abstract References Full text PDF (598 KB) View as HTML
The Primeval Populations of the Ultra-Faint Dwarf Galaxies
- Volume 7, Issue 23 - article #9
- Thomas M. Brown, Jason Tumlinson (STScI), Marla Geha (Yale), Evan N. Kirby (CalTech), Don A. VandenBerg (U. of Victoria), Ricardo R. Munoz (U. de Chile), Jason S. Kalirai (STScI), Joshua D. Simon (Carnegie), Roberto J. Avila (STScI), Puragra Guhathakurta (UCO/Lick), Alvio Renzini (INAF), Henry C. Ferguson (STScI)
- arXiv.org - Astrophysics - Volume: 2012, Issue: 8 Jun
- arXiv:1206.0941 [pdf, ps, other]
Willman 1—A Probable Dwarf Galaxy with an Irregular Kinematic Distribution
- Volume 6, Issue 37 - article #33
- Beth Willman, Marla Geha, Jay Strader, Louis E. Strigari, Joshua D. Simon, Evan Kirby, Nhung Ho and Alex Warres
- Astronomical Journal - Volume: 142, Issue: 4
- doi:10.1088/0004-6256/142/4/128 Tag this article
A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: Dark Matter Content, Stellar Membership, and Binary Properties from a Bayesian Analysis
- Volume 6, Issue 37 - article #38
- Gregory D. Martinez, Quinn E. Minor, James Bullock, Manoj Kaplinghat, Joshua D. Simon and Marla Geha
- The Astrophysical Journal - Volume: 738, Issue: 1
- Abstract References Full text PDF (902 KB) View as HTML
Multi-element Abundance Measurements from Medium-resolution Spectra. III. Metallicity Distributions of Milky Way Dwarf Satellite Galaxies
- Volume 6, Issue 23 - article #28
- Evan N. Kirby, Gustavo A. Lanfranchi, Joshua D. Simon, Judith G. Cohen and Puragra Guhathakurta
- The Astrophysical Journal - Volume: 727, Issue: 2
- Abstract References Cited by Full text PDF (904 KB) View as HTML
A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy
- Volume 6, Issue 18 - article #17
- Joshua D. Simon, Marla Geha, Quinn E. Minor, Gregory D. Martinez, Evan N. Kirby, James S. Bullock, Manoj Kaplinghat, Louis E. Strigari, Beth Willman, Philip I. Choi, Erik J. Tollerud and Joe Wolf
- The Astrophysical Journal - Volume: 733, Issue: 1
- Abstract References Full text PDF (1.24 MB) HTML with Enhancements
Multi-Element Abundance Measurements from Medium-Resolution Spectra. II. Catalog of Stars in Milky Way Dwarf Satellite Galaxies
- Volume 5, Issue 48 - article #9
- Evan N. Kirby (1), Puragra Guhathakurta (2), Joshua D. Simon (3), Marla C. Geha (4), Constance M. Rockosi (2), Christopher Sneden (5), Judith G. Cohen (1), Sangmo Tony Sohn (6), Steven R. Majewski (7), Michael Siegel (8) ((1) Caltech, (2) UC Santa Cruz, (3) Carnegie Observatories, (4) Yale, (5) UT Austin, (6) STScI, (7) Univ. of Virginia, (8) Penn State)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 25 Nov
- arXiv:1011.4516 [pdf, ps, other]
Multi-Element Abundance Measurements from Medium-Resolution Spectra. III. Metallicity Distributions of Milky Way Dwarf Satellite Galaxies
- Volume 5, Issue 48 - article #10
- Evan N. Kirby (1), Gustavo A. Lanfranchi (2), Joshua D. Simon (3), Judith G. Cohen (1), Puragra Guhathakurta (4) ((1) Caltech, (2) Nucleo de Astrofisica Teorica, Universidade Cruzeiro do Sul, (3) Carnegie Observatories, (4) UC Santa Cruz)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 25 Nov
- arXiv:1011.4937 [pdf, ps, other]
NGC 2419-Another Remnant of Accretion by the Milky Way
- Volume 5, Issue 48 - article #34
- Judith G. Cohen, Evan N. Kirby, Joshua D. Simon and Marla Geha
- The Astrophysical Journal - Volume: 725, Issue: 1
- Abstract References Full text PDF (442 KB) View as HTML
A Complete Spectroscopic Survey of the Milky Way satellite Segue 1: Dark matter content, stellar membership and binary properties from a Bayesian analysis
- Volume 5, Issue 36 - article #1
- Gregory D. Martinez, Quinn E. Minor, James Bullock, Manoj Kaplinghat, Joshua D. Simon, Marla Geha
- arXiv.org - Astrophysics - Volume: 2010, Issue: 3 Sep
- arXiv:1008.4585 [pdf, ps, other]
A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy
- Volume 5, Issue 31 - article #1
- Joshua D. Simon (Carnegie Observatories), Marla Geha (Yale), Quinn E. Minor, Gregory D. Martinez (UC Irvine), Evan N. Kirby (Caltech), James S. Bullock, Manoj Kaplinghat (UC Irvine), Louis E. Strigari (Stanford), Beth Willman (Haverford), Philip I. Choi (Pomona), Erik J. Tollerud, Joe Wolf (UC Irvine)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 30 Jul
- arXiv:1007.4198 [pdf, ps, other]
Indirect Dark Matter Detection Limits from the Ultra-Faint Milky Way Satellite Segue 1
- Volume 5, Issue 31 - article #7
- Rouven Essig (1), Neelima Sehgal (2), Louis E. Strigari (2), Marla Geha (3), Joshua D. Simon (4) ((1) SLAC, (2) KIPAC/Stanford/SLAC, (3) Yale, (4) Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 30 Jul
- arXiv:1007.4199 [pdf, other]
Willman 1 - a probable dwarf galaxy with an irregular kinematic distribution
- Volume 5, Issue 30 - article #18
- Beth Willman, Marla Geha, Jay Strader, Louis E. Strigari, Joshua D. Simon, Evan Kirby, Alex Warres
- arXiv.org - Astrophysics - Volume: 2010, Issue: 23 Jul
- arXiv:1007.3499 [pdf, ps, other]
High-resolution Spectroscopy of Extremely Metal-poor Stars in the Least Evolved Galaxies: Leo IV
- Volume 5, Issue 22 - article #53
- Joshua D. Simon, Anna Frebel, Andrew McWilliam, Evan N. Kirby, and Ian B. Thompson
- The Astrophysical Journal - Volume: 716, Issue: 1
- Abstract References Full text PDF (385 KB) View as HTML
Linking dwarf galaxies to halo building blocks with the most metal-poor star in Sculptor
- Volume 5, Issue 10 - article #20
- Anna Frebel, Evan N. Kirby & Joshua D. Simon
- Nature - Volume: 464, Issue: 7285
- First paragraph | Full Text | PDF (347K)
High-Resolution Spectroscopy of Extremely Metal-Poor Stars in the Least Evolved Galaxies: Leo IV
- Volume 5, Issue 4 - article #9
- Joshua D. Simon (Carnegie Observatories), Anna Frebel (CfA), Andrew McWilliam (Carnegie Observatories), Evan N. Kirby (Caltech), Ian B. Thompson (Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 22 Jan
- arXiv:1001.3137 [ps, pdf, other]
Linking dwarf galaxies to halo building blocks with the most metal-poor star in Sculptor
- Volume 5, Issue 1 - article #7
- Anna Frebel (1), Evan Kirby (2), Joshua D. Simon (3) ((1) Harvard-Smithsonian CfA, (2) Caltech, (3) Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 31 Dec
- arXiv:0912.4734 [pdf]
Linking dwarf galaxies to halo building blocks with the most metal-poor star in Sculptor
- Volume 4, Issue 52 - article #7
- Anna Frebel (1), Evan Kirby (2), Joshua D. Simon (3) ((1) Harvard-Smithsonian CfA, (2) Caltech, (3) Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 25 Dec
- arXiv:0912.4734 [pdf]
High-Resolution Spectroscopy of Extremely Metal-Poor Stars in the Least Evolved Galaxies: Ursa Major II and Coma Berenices
- Volume 4, Issue 51 - article #23
- <em >Anna Frebel, Joshua D. Simon, Marla Geha, and Beth Willman</em&gt,
- The Astrophysical Journal - Volume: 708, Issue: 1
- Abstract | References
Spectroscopic Confirmation of the Pisces Overdensity
- Volume 4, Issue 44 - article #28
- Juna A. Kollmeier, Andrew Gould, Stephen Shectman, Ian B. Thompson, George W. Preston, Joshua D. Simon, Jeffrey D. Crane, Željko Ivezić, and Branimir Sesar
- The Astrophysical Journal Letters - Volume: 705, Issue: 2
- Abstract | References
Spectroscopic Confirmation of the Pisces Overdensity
- Volume 4, Issue 33 - article #7
- Juna A. Kollmeier (1), Andrew Gould (2), Stephen Shectman (1), Ian B. Thompson (1), George W. Preston (1), Joshua D. Simon (1), Jeffrey D. Crane (1), Željko Ivezić, (3), Branimir Sesar (3) ((1) Carnegie Observatories, (2) The Ohio State University, (3) University of Washington)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 14 Aug
- arXiv:0908.1381 [ps, pdf, other]
Dwarf Galaxies in 2010: Revealing Galaxy Formation's Threshold and Testing the Nature of Dark Matter
- Volume 4, Issue 9 - article #2
- James S. Bullock (UC Irvine), Manoj Kaplinghat (UC Irvine), Andrew Fruchter (STScI), Marla Geha (Yale), Joshua D. Simon (OCIW), Louis E. Strigari (Stanford), Beth Willman (Haverford)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 27 Feb
- arXiv:0902.3492 [pdf, other]
The Role of Dwarf Galaxies in Building Large Stellar Halos
- Volume 4, Issue 8 - article #21
- Evan N. Kirby (UC Santa Cruz), Puragra Guhathakurta (UC Santa Cruz), James S. Bullock (UC Irvine), Anna Frebel (Harvard), Marla Geha (Yale), Karoline M. Gilbert (U Washington), Jasonjot S. Kalirai (STScI), Manoj Kaplinghat (UC Irvine), Michael Kuhlen (IAS), Steven R. Majewski (U Virginia), Brant E. Robertson (U Chicago), Joshua D. Simon (OCIW), Marcel Zemp (U Michigan)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 20 Feb
- arXiv:0902.2591 [ps, pdf, other]
A common mass scale for satellite galaxies of the Milky Way
- Volume 3, Issue 35 - article #1
- Louis E. Strigari, James S. Bullock, Manoj Kaplinghat, Joshua D. Simon, Marla Geha, Beth Willman, Matthew G. Walker
- arXiv.org - Astrophysics - Volume: 2008, Issue: 28 Aug
- arXiv:0808.3772 [ps, pdf, other]
A common mass scale for satellite galaxies of the Milky Way
- Volume 3, Issue 35 - article #13
- Louis E. Strigari, James S. Bullock, Manoj Kaplinghat, Joshua D. Simon, Marla Geha, Beth Willman & Matthew G. Walker
- Nature - Volume: 454, Issue: 7208
- First paragraph | Full Text | PDF (146K) | Supplementary information
Uncovering Extremely Metal-Poor Stars in the Milky Way's Ultra-Faint Dwarf Spheroidal Satellite Galaxies
- Volume 3, Issue 29 - article #15
- Evan N. Kirby (1), Joshua D. Simon (2), Marla Geha (3), Puragra Guhathakurta (1), Anna Frebel (4) ((1) University of California Santa Cruz/Lick Observatory, (2) California Institute of Technology, (3) Yale University, (4) University of Texas Austin/McDonald Observatory)
- arXiv.org - Astrophysics - Volume: 2008, Issue: 17 Jul
- arXiv:0807.1925 [ps, pdf, other]
The Most Dark-Matter–dominated Galaxies: Predicted Gamma-Ray Signals from the Faintest Milky Way Dwarfs
- Volume 3, Issue 18 - article #29
- Louis E. Strigari, Savvas M. Koushiappas, James S. Bullock, Manoj Kaplinghat, Joshua D. Simon, Marla Geha, and Beth Willman
- The Astrophysical Journal - Volume: 678, Issue: 2
- Abstract-Full Text-PDF Version (178 kB)
A Metallicity Map of M33
- Volume 2, Issue 51 - article #4
- Joshua D. Simon (Caltech), Erik Rosolowsky (CfA)
- arXiv.org - Astrophysics - Volume: 2007, Issue: 20 Dec
- arXiv:0712.2459 [ps, pdf, other]
The M33 Metallicity Project: Resolving the Abundance Gradient Discrepancies in M33
- Volume 2, Issue 48 - article #32
- Erik Rosolowsky (1), Joshua D. Simon (2) ((1) Center for Astrophysics (2) CalTech)
- arXiv.org - Astrophysics - Volume: 2007, Issue: 29 Nov
- arXiv:0711.4351 [ps, pdf, other]
The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem
- Volume 2, Issue 46 - article #30
- Joshua D. Simon and Marla Geha
- The Astrophysical Journal - Volume: 670, Issue: 1
- ABSTRACT | FULL TEXT WITH ENHANCEMENTS | PDF (888 kB) | PS
The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
- Volume 2, Issue 23 - article #21
- Joshua D. Simon (Caltech), Marla Geha (HIA/DAO)
- ArXiv - Astrophysics
- arXiv:0706.0516 [ps, pdf, other]

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