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The $R$-process Alliance: Enrichment of $R$-process Elements in a Simulated Milky Way-like Galaxy
- Volume 19, Issue 42 - article #9
- Yutaka Hirai, Timothy C. Beers, Young Sun Lee, Shinya Wanajo, Ian U. Roederer, Masaomi Tanaka, Masashi Chiba, Takayuki R. Saitoh, Vinicius M. Placco, Terese T. Hansen, Rana Ezzeddine, Anna Frebel, Erika M. Holmbeck, Charli M. Sakari
- https://arxiv.org/abs/2410.11943
Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement
- Volume 19, Issue 33 - article #1
- Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel, Ian U. Roederer, Ella Xi Wang, Yangyang Li, Zoe Hackshaw, Timothy C. Beers, Anna Frebel, Terese T. Hansen, Erika Holmbeck, Vinicius M. Placco, Charli M. Sakari
- https://arxiv.org/abs/2209.02184
The R-Process Alliance: 2MASS J22132050–5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45
- Volume 19, Issue 33 - article #7
- Ian U. Roederer, Timothy C. Beers, Kohei Hattori, Vinicius M. Placco, Terese T. Hansen, Rana Ezzeddine, Anna Frebel, Erika M. Holmbeck, Charli M. Sakari
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ad57bf
The $R$-Process Alliance: Fifth Data Release from the Search for $R$-Process-Enhanced Metal-poor Stars in the Galactic Halo with the GTC
- Volume 19, Issue 32 - article #8
- Avrajit Bandyopadhyay, Rana Ezzeddine, Carlos Allende Prieto, Nima Aria, Shivani P. Shah, Timothy C. Beers, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Vinicius M. Placco, Ian U. Roederer, Charli M. Sakari
- https://arxiv.org/abs/2408.03731
The Fourth S-PLUS Data Release: 12-filter photometry covering $sim3000$ square degrees in the southern hemisphere
- Volume 19, Issue 31 - article #2
- Fabio R. Herpich, Felipe Almeida-Fernandes, Gustavo B. Oliveira Schwarz, Erik V. R. Lima, Lilianne Nakazono, Javier Alonso-Garc'ia, Marcos A. Fonseca-Faria, Marilia J. Sartori, Guilherme F. Bolutavicius, Gabriel Fabiano de Souza, Eduardo A. Hartmann, Liana Li, Luna Espinosa, Antonio Kanaan, William Schoenell, Ariel Werle, Eduardo Machado-Pereira, Luis A. Guti'errez-Soto, Tha'is Santos-Silva, Analia V. Smith Castelli, Eduardo A. D. Lacerda, Cassio L. Barbosa, H'elio D. Perottoni, Carlos E. Ferreira Lopes, Raquel Ruiz Valenc{c}a, Pierre Augusto Re Martho, Clecio R. Bom, Charles J. Bonatto, Maiara S. Carvalho, Vitor Cernic, Roberto Cid Fernandes, Paula Coelho, Ariana Cortesi, Barbara Cubillos Palma, Lia Doubrawa, Vincenzo Sivero Ferreira Alberice, Fredi Quispe Huaynasi, Gabriel Jacob Perin, Marcelo Jaque Arancibia, Angela Krabbe, Ciria Lima-Dias, Luis Lomel'i-N'u~nez, Raimundo Lopes de Oliveira, Amanda R. Lopes, Andr'e Luiz Figueiredo, Elismar L"osch, Felipe Navarete, Julia Mello de Oliveira, Roderik Overzier, Vinicius M. Placco, Fernando V. Roig, Mariana Rubet, Andr'e Santos, Victor Hugo Sasse, Julia Thaina-Batista, Sergio Torres-Flores, Timothy C. Beers, Alvaro Alvarez-Candal, Stavros Akras, Swayamtrupta Panda, Guilherme Limberg, Jos'e Luis Nilo Castell'on, Eduardo Telles, Paulo Afranio Lopes, Gissel Dayana Pardo Montaguth, Leandro Beraldo e Silva, Pedro K. Humire, Marcelo Borges Fernandes, Vin'icius Cordeiro, Tiago Ribeiro, Claudia Mendes de Oliveira
- https://arxiv.org/abs/2407.20701
The S-PLUS Ultra-Short Survey: first data release
- Volume 19, Issue 28 - article #6
- H'elio D. Perottoni, Vinicius M. Placco, Felipe Almeida-Fernandes, F'abio R. Herpich, Silvia Rossi, Timothy C. Beers, Rodolfo Smiljanic, Jo~ao A. S. Amarante, Guilherme Limberg, Ariel Werle, Helio J. Rocha-Pinto, Leandro Beraldo e Silva, Simone Daflon, Alvaro Alvarez-Candal, Gustavo B Oliveira Schwarz, William Schoenell, Tiago Ribeiro, Antonio Kanaan
- https://arxiv.org/abs/2407.05004
The R-Process Alliance: 2MASS J22132050-5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45
- Volume 19, Issue 23 - article #4
- Ian U. Roederer, Timothy C. Beers, Kohei Hattori, Vinicius M. Placco, Terese T. Hansen, Rana Ezzeddine, Anna Frebel, Erika M. Holmbeck, Charli M. Sakari
- https://arxiv.org/abs/2406.02691
The $R$-Process Alliance: Detailed Composition of an $R$-Process Enhanced Star with UV and Optical Spectroscopy. (arXiv:2401.12311v1 [astro-ph.SR])
- Volume 19, Issue 4 - article #9
- Shivani P. Shah, Rana Ezzeddine, Ian U. Roederer, Terese T. Hansen, Vinicius M. Placco, Timothy C. Beers, Anna Frebel, Alexander P. Ji, Erika Holmbeck, Jennifer Marshall, Charli M. Sakari
- http://arxiv.org/abs/2401.12311
SPLUS J142445.34–254247.1: An r-process–enhanced, Actinide-boost, Extremely Metal-poor Star Observed with GHOST
- Volume 18, Issue 47 - article #11
- Vinicius M. Placco, Felipe Almeida-Fernandes, Erika M. Holmbeck, Ian U. Roederer, Mohammad K. Mardini, Christian R. Hayes, Kim Venn, Kristin Chiboucas, Emily Deibert, Roberto Gamen
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ad077e
Probing the early Milky Way with GHOST spectra of an extremely metal-poor star in the Galactic disk. (arXiv:2310.03075v2 [astro-ph.GA] UPDATED)
- Volume 18, Issue 46 - article #4
- Anya Dovgal, Kim A. Venn, Federico Sestito, Christian R. Hayes, Alan W. McConnachie, Julio F. Navarro, Vinicius M. Placco, Else Starkenburg, Nicolas F. Martin, John S. Pazder, Kristin Chiboucas, Emily Deibert, Roberto Gamen, Jeong-Eun Heo, Venu M. Kalari, Eder Martioli, Siyi Xu, Ruben Diaz, Manuel Gomez-Jiminez, David Henderson, Pablo Prado, Carlos Quiroz, J. Gordon Robertson, Roque Ruiz-Carmona, Chris Simpson, Cristian Urrutia, Fletcher Waller, Trsytyn Berg, Gregory Burley, Zachary Hartman, Michael Ireland, Steve Margheim, Gabriel Perez, Joanna Thomas-Osip
- http://arxiv.org/abs/2310.03075
rrlfe: Software for Generating and Applying Metallicity Calibrations for RR Lyrae Variable Stars Across a Wide Range of Phases and Temperatures. (arXiv:2311.13807v1 [astro-ph.SR])
- Volume 18, Issue 46 - article #5
- Eckhart Spalding, Ronald Wilhelm, Nathan De Lee, Stacy Long, Timothy C. Beers, Vinicius M. Placco, John Kielkopf, Young Sun Lee, Joshua Pepper, Kenneth Carrell
- http://arxiv.org/abs/2311.13807
Abundance Analysis of Stars at Large Radius in the Sextans Dwarf Spheroidal Galaxy
- Volume 18, Issue 34 - article #6
- Ian U. Roederer, Andrew B. Pace, Vinicius M. Placco, Nelson Caldwell, Sergey E. Koposov, Mario Mateo, Edward W. Olszewski, Matthew G. Walker
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ace3c1
Abundance Analysis of Stars at Large Radius in the Sextans Dwarf Spheroidal Galaxy. (arXiv:2307.02585v1 [astro-ph.GA])
- Volume 18, Issue 27 - article #1
- Ian U. Roederer, Andrew B. Pace, Vinicius M. Placco, Nelson Caldwell, Sergey E. Koposov, Mario Mateo, Edward W. Olszewski, Matthew G. Walker
- http://arxiv.org/abs/2307.02585
Search for Extremely Metal-poor Stars with Gemini-N/Graces. I. Chemical-abundance Analysis
- Volume 18, Issue 18 - article #9
- Miji Jeong, Young Sun Lee, Timothy C. Beers, Vinicius M. Placco, Young Kwang Kim, Jae-Rim Koo, Ho-Gyu Lee, Soung-Chul Yang
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/acc58a
US National Gemini Office in the NOIRLab era. (arXiv:2304.10657v1 [astro-ph.IM])
- Volume 18, Issue 17 - article #9
- Vinicius M. Placco, Letizia Stanghellini
- http://arxiv.org/abs/2304.10657
Chemodynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-s and CEMP-no Stars
- Volume 18, Issue 16 - article #3
- Joseph Zepeda, Timothy C. Beers, Vinicius M. Placco, Derek Shank, Dmitrii Gudin, Yutaka Hirai, Mohammad Mardini, Colin Pifer, Thomas Catapano, Sean Calagna
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/acbbcc
The R-Process Alliance: Chemodynamically Tagged Groups. II. An Extended Sample of Halo r-process-enhanced Stars
- Volume 18, Issue 4 - article #10
- Derek Shank, Timothy C. Beers, Vinicius M. Placco, Dmitrii Gudin, Thomas Catapano, Erika M. Holmbeck, Rana Ezzeddine, Ian U. Roederer, Charli M. Sakari, Anna Frebel
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/aca322
Search for Extremely Metal-Poor Stars with GEMINI-N/GRACES I. Chemical-Abundance Analysis. (arXiv:2301.06236v1 [astro-ph.GA])
- Volume 18, Issue 3 - article #6
- Miji Jeong, Young Sun Lee, Timothy C. Beers, Vinicius M. Placco, Young Kwang Kim, Jae-Rim Koo, Ho-Gyu Lee, Soung-Chul Yang
- http://arxiv.org/abs/2301.06236
Gaia-IGRINS synergy: Orbits of Newly Identified Milky Way Star Clusters. (arXiv:2212.02337v1 [astro-ph.GA])
- Volume 17, Issue 48 - article #3
- Elisa R. Garro, José, G. Fernández-Trincado, Dante Minniti, Wisthon H. Moya, Tali Palma, Timothy C. Beers, Vinicius M. Placco, Beatriz Barbuy, Chris Sneden, Alan Alves-Brito, Bruno Dias, Melike Afşar, Heinz Frelijj, Richard R. Lane
- http://arxiv.org/abs/2212.02337
The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks. (arXiv:2210.15105v1 [astro-ph.SR])
- Volume 17, Issue 42 - article #2
- Ian U. Roederer, John J. Cowan, Marco Pignatari, Timothy C. Beers, Elizabeth A. Den Hartog, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Matthew R. Mumpower, Vinicius M. Placco, Charli M. Sakari, Rebecca Surman, Nicole Vassh
- http://arxiv.org/abs/2210.15105
Chemo-Dynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-$s$ and CEMP-no Stars. (arXiv:2209.12224v1 [astro-ph.SR])
- Volume 17, Issue 38 - article #2
- Joseph Zepeda, Timothy C. Beers, Vinicius M. Placco, Derek Shank, Dmitrii Gudin, Yutaka Hirai, Mohammad Mardini, Colin Pifer, Thomas Catapano, Sean Calagna
- http://arxiv.org/abs/2209.12224
Discovery of an Ultra Lithium-rich Metal-Poor Red Giant star. (arXiv:2209.02184v1 [astro-ph.SR])
- Volume 17, Issue 35 - article #2
- Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel, Ian U. Roederer, Yangyang Li, Zoe Hackshaw, Timothy C. Beers, Anna Frebel, Terese T. Hansen, Erika Holmbeck, Vinicius M. Placco, Charli M. Sakari
- http://arxiv.org/abs/2209.02184
The emph{R}-Process Alliance: Chemo-Dynamically Tagged Groups II. An Extended Sample of Halo $r$-Process-Enhanced Stars. (arXiv:2208.09712v1 [astro-ph.GA])
- Volume 17, Issue 33 - article #5
- Derek Shank, Timothy C. Beers, Vinicius M. Placco, Dmitrii Gudin, Thomas Catapano, Erika M. Holmbeck, Rana Ezzeddine, Ian U. Roederer, Charli M. Sakari, Anna Frebel, Terese T. Hansen
- http://arxiv.org/abs/2208.09712
Mining S-PLUS for Metal-poor Stars in the Milky Way
- Volume 17, Issue 33 - article #9
- Vinicius M. Placco, Felipe Almeida-Fernandes, Anke Arentsen, Young Sun Lee, William Schoenell, Tiago Ribeiro, Antonio Kanaan
- The Astrophysical Journal Supplement
- https://doi.org/10.3847/1538-4365/ac7ab0
The chemical abundance pattern of the extremely metal-poor thin disk star 2MASS J1808-5104 and its origins. (arXiv:2208.03891v1 [astro-ph.GA])
- Volume 17, Issue 31 - article #8
- Mohammad K. Mardini, Anna Frebel, Rana Ezzeddine, Anirudh Chiti, Yohai Meiron, Alexander P. Ji, Vinicius M. Placco, Ian U. Roederer, Jorge Meléndez
- http://arxiv.org/abs/2208.03891
Dynamically Tagged Groups of Metal-poor Stars. II. The Radial Velocity Experiment Data Release 6
- Volume 17, Issue 29 - article #8
- Derek Shank, Dante Komater, Timothy C. Beers, Vinicius M. Placco, Yang Huang
- The Astrophysical Journal Supplement
- https://doi.org/10.3847/1538-4365/ac680c
Mining S-PLUS for Metal-Poor Stars in the Milky Way. (arXiv:2206.09003v1 [astro-ph.SR])
- Volume 17, Issue 25 - article #2
- Vinicius M. Placco, Felipe Almeida-Fernandes, Anke Arentsen, Young Sun Lee, William Schoenell, Tiago Ribeiro, Antonio Kanaan
- http://arxiv.org/abs/2206.09003
The R-process Alliance: A Nearly Complete R-process Abundance Template Derived from Ultraviolet Spectroscopy of the R-process-enhanced Metal-poor Star HD 222925
- Volume 17, Issue 24 - article #20
- Ian U. Roederer, James E. Lawler, Elizabeth A. Den Hartog, Vinicius M. Placco, Rebecca Surman, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Kohei Hattori
- The Astrophysical Journal Supplement
- https://doi.org/10.3847/1538-4365/ac5cbc
On the inconsistency of [C/Fe] abundances and the fractions of carbon-enhanced metal-poor stars among various stellar surveys. (arXiv:2206.04081v1 [astro-ph.GA])
- Volume 17, Issue 23 - article #2
- Anke Arentsen, Vinicius M. Placco, Young Sun Lee, David S. Aguado, Nicolas F. Martin, Else Starkenburg, Jinmi Yoon
- http://arxiv.org/abs/2206.04081
Dynamically Tagged Groups of Metal-poor Stars from the Best and Brightest Survey
- Volume 17, Issue 6 - article #5
- Derek Shank, Timothy C. Beers, Vinicius M. Placco, Guilherme Limberg, Emma Jaques, Zhen Yuan, Kevin C. Schlaufman, Andrew R. Casey, Yang Huang, Young Sun Lee, Kohei Hattori,, Rafael M. Santucci
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/926/1/26
Dynamically Tagged Groups of Metal-Poor Stars II. The Radial Velocity Experiment Data Release 6. (arXiv:2201.08337v1 [astro-ph.GA])
- Volume 17, Issue 3 - article #4
- Derek Shank, Dante Komater, Timothy C. Beers, Vinicius M. Placco, Yang Huang
- http://arxiv.org/abs/2201.08337
Silicon and Strontium abundances of very metal-poor stars determined from near-infrared spectra. (arXiv:2112.07433v1 [astro-ph.SR])
- Volume 16, Issue 51 - article #7
- Wako Aoki, Timothy C. Beers, Satoshi Honda, Hiroyuki T. Ishikawa, Tadafumi Matsuno, Vinicius M. Placco, Jinmi Yoon, Hiroki Harakawa, Teruyuki Hirano, Klaus Hodapp, Masato Ishizuka, Shane Jacobson, Takayuki Kotani, Tomoyuki Kudo, Takashi Kurokawa, Masayuki Kuzuhara, Jun Nishikawa, Masashi Omiya, Takuma Serizawa, Motohide Tamura, Akitoshi Ueda, Sebastien Vievard
- http://arxiv.org/abs/2112.07433
Metal-Poor Stars Observed with the Southern African Large Telescope II. An Extended Sample. (arXiv:2109.13761v1 [astro-ph.SR])
- Volume 16, Issue 40 - article #3
- Joseph Zepeda, Kaitlin C. Rasmussen, Timothy C. Beers, Vinicius M. Placco, Yang Huang, Éric Depagne
- http://arxiv.org/abs/2109.13761
Dynamically Tagged Groups of Metal-Poor Stars from the Best & Brightest Survey. (arXiv:2109.08600v1 [astro-ph.GA])
- Volume 16, Issue 39 - article #2
- Derek Shank, Timothy C. Beers, Vinicius M. Placco, Guilherme Limberg, Emma Jaques, Zhen Yuan, Kevin C. Schlaufman, Andrew R. Casey, Yang Huang, Young Sun Lee, Kohei Hattori, Rafael M. Santucci
- http://arxiv.org/abs/2109.08600
Two Populations of Carbon-enhanced Metal-poor Stars in the Disk System of the Milky Way
- Volume 16, Issue 26 - article #12
- Sarah E. Dietz, Jinmi Yoon, Timothy C. Beers, Vinicius M. Placco,, Young Sun Lee
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/914/2/100
Targeting Bright Metal-poor Stars in the Disk and Halo Systems of the Galaxy
- Volume 16, Issue 21 - article #11
- Guilherme Limberg, Rafael M. Santucci, Silvia Rossi, Derek Shank, Vinicius M. Placco, Timothy C. Beers, Kevin C. Schlaufman, Andrew R. Casey, HÃ©lio D. Perottoni,, Young Sun Lee
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/913/1/11
SPLUSJ210428.01-004934.2: An Ultra Metal-Poor Star Identified from Narrowband Photometry. (arXiv:2105.04573v1 [astro-ph.SR])
- Volume 16, Issue 20 - article #4
- Vinicius M. Placco, Ian U. Roederer, Young Sun Lee, Felipe Almeida-Fernandes, Fabio R. Herpich, Helio D. Perottoni, William Schoenell, Tiago Ribeiro, Antonio Kanaan
- http://arxiv.org/abs/2105.04573
The Pristine Inner Galaxy Survey (PIGS) III: carbon-enhanced metal-poor stars in the bulge. (arXiv:2105.03441v1 [astro-ph.GA])
- Volume 16, Issue 20 - article #6
- Anke Arentsen, Else Starkenburg, David S. Aguado, Nicolas F. Martin, Vinicius M. Placco, Raymond Carlberg, Jonay I. González Hernández, Vanessa Hill, Pascale Jablonka, Georges Kordopatis, Carmela Lardo, Lyudmila I. Mashonkina, Julio F. Navarro, Kim A. Venn, Sven Buder, Geraint F. Lewis, Zhen Wan, Daniel B. Zucker
- http://arxiv.org/abs/2105.03441
The Photometric Metallicity and Carbon Distributions of the Milky Way’s Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82
- Volume 16, Issue 20 - article #10
- Devin D. Whitten, Vinicius M. Placco, Timothy C. Beers, Deokkeun An, Young Sun Lee, Felipe Almeida-Fernandes, FÃ¡bio R. Herpich, Simone Daflon, Carlos E. Barbosa, HÃ©lio D. Perottoni, Silvia Rossi, Patricia B. Tissera, Jinmi Yoon, Kris Youakim, William Schoenell, Tiago Ribeiro,, Antonio Kanaan
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/912/2/147
SPLUS J210428.01−004934.2: An Ultra Metal-poor Star Identified from Narrowband Photometry
- Volume 16, Issue 20 - article #11
- Vinicius M. Placco, Ian U. Roederer, Young Sun Lee, Felipe Almeida-Fernandes, FÃ¡bio R. Herpich, HÃ©lio D. Perottoni, William Schoenell, Tiago Ribeiro,, Antonio Kanaan
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/912/2/L32
linemake: An Atomic and Molecular Line List Generator. (arXiv:2104.08286v1 [astro-ph.IM])
- Volume 16, Issue 17 - article #1
- Vinicius M. Placco, Christopher Sneden, Ian U. Roederer, James E. Lawler, Elizabeth A. Den Hartog, Neda Hejazi, Zachary Maas, Peter Bernath
- http://arxiv.org/abs/2104.08286
The Photometric Metallicity and Carbon Distributions of the Milky Way's Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82. (arXiv:2104.00016v1 [astro-ph.GA])
- Volume 16, Issue 14 - article #7
- Devin D. Whitten, Vinicius M. Placco, Timothy C. Beers, Deokkeun An, Young Sun Lee, Felipe Almeida-Fernandes, Fabio R. Herpich, Simone Daflon, Carlos E. Barbosa, Helio D. Perottoni, Silvia Rossi, Patricia B. Tissera, Jinmi Yoon, Kris Youakim, William Schoenell, Tiago Ribeiro, Antonio Kanaan
- http://arxiv.org/abs/2104.00016
Targeting Bright Metal-poor Stars in the Disk and Halo Systems of the Galaxy. (arXiv:2103.07621v1 [astro-ph.GA])
- Volume 16, Issue 12 - article #7
- Guilherme Limberg, Rafael M. Santucci, Silvia Rossi, Derek Shank, Vinicius M. Placco, Timothy C. Beers, Kevin C. Schlaufman, Andrew R. Casey, Hélio D. Perottoni, Young Sun Lee
- http://arxiv.org/abs/2103.07621
APOGEE discovery of a chemically atypical star disrupted from NGC 6723 and captured by the Milky Way bulge. (arXiv:2102.01706v1 [astro-ph.GA])
- Volume 16, Issue 6 - article #1
- José, G. Fernández-Trincado, Timothy C. Beers, Dante Minniti, Leticia Carigi, Vinicius M. Placco, Sang-Hyun Chun, Richard R. Lane, Doug Geisler, Sandro Villanova, Stefano O. Souza, Beatriz Barbuy, Angeles Pérez-Villegas, Cristina Chiappini, Anna. B. A. Queiroz, Baitian Tang, Javier Alonso-García, Andrés E. Piatti, Tali Palma, Alan Alves-Brito, Christian Moni Bidin, Alexandre Roman-Lopes, Ricardo R. Muñoz, Harinder P. Singh, Richa Kundu, Leonardo Chaves-Velasquez, María Romero-Colmenares, Penelope Longa-Peña, Mario Soto, Katherine Vieira
- http://arxiv.org/abs/2102.01706
Dynamically Tagged Groups of Very Metal-poor Halo Stars from the HK and Hamburg/ESO Surveys
- Volume 16, Issue 4 - article #6
- Guilherme Limberg, Silvia Rossi, Timothy C. Beers, HÃ©lio D. Perottoni, Angeles PÃ©rez-Villegas, Rafael M. Santucci, Yuri Abuchaim, Vinicius M. Placco, Young Sun Lee, Norbert Christlieb, John E. Norris, Michael S. Bessell, Sean G. Ryan, Ronald Wilhelm, Jaehyon Rhee,, Anna Frebel
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/907/1/10
Dynamically Tagged Groups of Very Metal-poor Halo Stars from the HK and Hamburg/ESO Surveys. (arXiv:2011.08305v2 [astro-ph.GA] UPDATED)
- Volume 15, Issue 50 - article #3
- Guilherme Limberg, Silvia Rossi, Timothy C. Beers, Hélio D. Perottoni, Angeles Pérez-Villegas, Rafael M. Santucci, Yuri Abuchaim, Vinicius M. Placco, Young Sun Lee, Norbert Christlieb, John E. Norris, Michael S. Bessell, Sean G. Ryan, Ronald Wilhelm, Jaehyon Rhee, Anna Frebel
- http://arxiv.org/abs/2011.08305
Metal-poor Stars Observed with the Southern African Large Telescope
- Volume 15, Issue 50 - article #11
- Kaitlin C. Rasmussen, Joseph Zepeda, Timothy C. Beers, Vinicius M. Placco, Ãric Depagne, Anna Frebel, Sarah Dietz,, Tilman Hartwig
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/905/1/20
Cosmological Insights into the Early Accretion of r -process-enhanced Stars. I. A Comprehensive Chemodynamical Analysis of LAMOST J1109+0754
- Volume 15, Issue 45 - article #14
- Mohammad K. Mardini, Vinicius M. Placco, Yohai Meiron, Marina Ishchenko, Branislav Avramov, Matteo Mazzarini, Peter Berczik, Manuel Arca Sedda, Timothy C. Beers, Anna Frebel, Ali Taani, Martina Donnari, Mashhoor A. Al-Wardat,, Gang Zhao
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/903/2/88
Discovery of a Large Population of Nitrogen-enhanced Stars in the Magellanic Clouds
- Volume 15, Issue 44 - article #15
- JosÃ© G. FernÃ¡ndez-Trincado, Timothy C. Beers, Dante Minniti, Leticia Carigi, Beatriz Barbuy, Vinicius M. Placco, Christian Moni Bidin, Sandro Villanova, Alexandre Roman-Lopes,, Christian Nitschelm
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/903/1/L17
Detection of Pb II in the Ultraviolet Spectra of Three Metal-poor Stars
- Volume 15, Issue 42 - article #8
- Ian U. Roederer, James E. Lawler, Erika M. Holmbeck, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Inese I. Ivans, Amanda I. Karakas, Vinicius M. Placco,, Charli M. Sakari
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/902/1/L24
Cosmological Insights into the Early Accretion of textit{r}-Process-Enhanced stars. I. A Comprehensive Chemo-dynamical Analysis of LAMOST J1109+0754. (arXiv:2009.12142v1 [astro-ph.GA])
- Volume 15, Issue 40 - article #2
- Mohammad K. Mardini, Vinicius M. Placco, Yohai Meiron, Marina Ishchenko, Branislav Avramov, Matteo Mazzarini, Peter Berczik, Manuel Arca Sedda, Timothy C. Beers, Anna Frebel, Ali Taani, Mashhoor A. Al-Wardat, Gang Zhao
- http://arxiv.org/abs/2009.12142
Detection of Pb II in the Ultraviolet Spectra of Three Metal-Poor Stars. (arXiv:2009.14251v1 [astro-ph.SR])
- Volume 15, Issue 40 - article #3
- Ian U. Roederer, James E. Lawler, Erika M. Holmbeck, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Inese I. Ivans, Amanda I. Karakas, Vinicius M. Placco, Charli M. Sakari
- http://arxiv.org/abs/2009.14251
Discovery of a large population of Nitrogen-Enhanced stars in the Magellanic Clouds. (arXiv:2010.00024v1 [astro-ph.GA])
- Volume 15, Issue 40 - article #5
- José, G. Fernández-Trincado, Timothy C. Beers, Dante Minniti, Leticia Carigi, Beatriz Barbuy, Vinicius M. Placco, Christian Moni Bidin, Sandro Villanova, Alexandre Roman-Lopes, Christian Nitschelm
- http://arxiv.org/abs/2010.00024
The enigmatic globular cluster UKS~1 obscured by the bulge: textit{H}-band discovery of nitrogen-enhanced stars. (arXiv:2010.00020v1 [astro-ph.GA])
- Volume 15, Issue 40 - article #13
- José, G. Fernández-Trincado, Dante Minniti, Timothy C. Beers, Sandro Villanova, Doug Geisler, Stefano O. Souza, Leigh C. Smith, Vinicius M. Placco, Katherine Vieira, Angeles Pérez-Villegas, Beatriz Barbuy, Alan Alves-Brito, Christian Moni Bidin, Javier Alonso-García, Baitian Tang, Tali Palma
- http://arxiv.org/abs/2010.00020
The R -Process Alliance: First Magellan/MIKE Release from the Southern Search for R -process-enhanced Stars
- Volume 15, Issue 32 - article #12
- Rana Ezzeddine, Kaitlin Rasmussen, Anna Frebel, Anirudh Chiti, Karina Hinojisa, Vinicius M. Placco, Alexander P. Ji, Timothy C. Beers, Terese T. Hansen, Ian U. Roederer, Charli M. Sakari,, Jorge Melendez
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/898/2/150
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: A Very Metal-poor, Extremely r -process-enhanced Star with [Eu/Fe] = + 2.2, and the Class of r- III Stars
- Volume 15, Issue 30 - article #11
- Madelyn Cain, Anna Frebel, Alexander P. Ji, Vinicius M. Placco, Rana Ezzeddine, Ian U. Roederer, Kohei Hattori, Timothy C. Beers, Jorge MelÃ©ndez, Terese T. Hansen,, Charli M. Sakari
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/898/1/40
The R -process Alliance: The Peculiar Chemical Abundance Pattern of RAVE J183013.5−455510
- Volume 15, Issue 28 - article #17
- Vinicius M. Placco, Rafael M. Santucci, Zhen Yuan, Mohammad K. Mardini, Erika M. Holmbeck, Xilu Wang, Rebecca Surman, Terese T. Hansen, Ian U. Roederer, Timothy C. Beers, Arthur Choplin, Alexander P. Ji, Rana Ezzeddine, Anna Frebel, Charli M. Sakari, Devin D. Whitten,, Joseph Zepeda
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/897/1/78
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 R-process Alliance: First Magellan/MIKE Release from the Southern Search for R-Process-enhanced Stars. (arXiv:2006.07731v1 [astro-ph.SR])
- Volume 15, Issue 25 - article #14
- Rana Ezzeddine, Kaitlin Rasmussen, Anna Frebel, Anirudh Chiti, Karina Hinojisa, Vinicius M. Placco, Ian U. Roederer, Alexander P. Ji, Timothy C. Beers, Terese T. Hansen, Charli M. Sakari, Jorge Melendez
- http://arxiv.org/abs/2006.07731
The R-Process Alliance: The Peculiar Chemical Abundance Pattern of RAVE J183013.5-455510
- Volume 15, Issue 24 - article #17
- Vinicius M. Placco, Rafael M. Santucci, Zhen Yuan, Mohammad K. Mardini, Erika M. Holmbeck, Xilu Wang, Rebecca Surman, Terese T. Hansen, Ian U. Roederer, Timothy C. Beers, Arthur Choplin, Alexander P. Ji, Rana Ezzeddine, Anna Frebel, Charli M. Sakari, Devin D. Whitten, Joseph Zepeda
- http://arxiv.org/abs/2006.04538
Dynamical Relics of the Ancient Galactic Halo
- Volume 15, Issue 10 - article #5
- Zhen Yuan, G. C. Myeong, Timothy C. Beers, N. W. Evans, Young Sun Lee, Projjwal Banerjee, Dmitrii Gudin, Kohei Hattori, Haining Li, Tadafumi Matsuno, Vinicius M. Placco, M. C. Smith, Devin D. Whitten,, Gang Zhao
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/891/1/39
Discovery of a New Stellar Subpopulation Residing in the (Inner) Stellar Halo of the Milky Way
- Volume 14, Issue 46 - article #17
- JosÃ© G. FernÃ¡ndez-Trincado, Timothy C. Beers, Vinicius M. Placco, Edmundo Moreno, Alan Alves-Brito, Dante Minniti, Baitian Tang, Angeles PÃ©rez-Villegas, CÃ©line ReylÃ©, Annie C. Robin,, Sandro Villanova
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/886/1/L8
Constraints on the Galactic Inner Halo Assembly History from the Age Gradient of Blue Horizontal-branch Stars
- Volume 14, Issue 42 - article #9
- Devin D. Whitten, Timothy C. Beers, Vinicius M. Placco, Rafael M. Santucci, Pavel Denissenkov, Patricia B. Tissera, Andrea MejÃas, Nina Hernitschek,, Daniela Carollo
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/884/1/67
Metal-poor Stars Observed with the Automated Planet Finder Telescope. II. Chemodynamical Analysis of Six Low-Metallicity Stars in the Halo System of the Milky Way. (arXiv:1906.08439v1 [astro-ph.GA])
- Volume 14, Issue 25 - article #4
- Mohammad K. Mardini, Vinicius M. Placco, Ali Taani, Haining Li, Gang Zhao
- http://arxiv.org/abs/1906.08439
Evidence for an Aspherical Population III Supernova Explosion Inferred from the Hyper-metal-poor Star HE 1327–2326
- Volume 14, Issue 19 - article #8
- Rana Ezzeddine, Anna Frebel, Ian U. Roederer, Nozomu Tominaga, Jason Tumlinson, Miho Ishigaki, Kenâichi Nomoto, Vinicius M. Placco,, Wako Aoki
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/876/2/97
The discovery of anomalously high levels of [Si/Fe] among metal-poor giants in the bulge, disk, and halo of the Milky Way. (arXiv:1904.05884v1 [astro-ph.GA])
- Volume 14, Issue 16 - article #3
- José, G. Fernández-Trincado, Timothy C. Beers, Vinicius M. Placco, Sarah L. Martell, Edmundo Moreno, Baitian Tang, Alan Alves-Brito, Sandro Villanova, Mario Ortigoza-Urdaneta, Dante Minniti, Angeles Pérez-Villegas, Céline Reylé, Annie C. Robin
- http://arxiv.org/abs/1904.05884
Metal-poor Stars Observed with the Automated Planet Finder Telescope. I. Discovery of Five Carbon-enhanced Metal-poor Stars from LAMOST
- Volume 14, Issue 16 - article #16
- Mohammad K. Mardini, Haining Li, Vinicius M. Placco, Sofya Alexeeva, Daniela Carollo, Ali Taani, Iminhaji Ablimit, Liang Wang,, Gang Zhao
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/875/2/89
Evidence for an aspherical Population III supernova explosion inferred from the hyper metal-poor star HE1327-2326. (arXiv:1904.03211v1 [astro-ph.SR])
- Volume 14, Issue 15 - article #7
- Rana Ezzeddine, Anna Frebel, Ian U. Roederer, Nozomu Tominaga, Jason Tumlinson, Miho Ishigaki, Ken'ichi Nomoto, Vinicius M. Placco, Wako Aoki
- http://arxiv.org/abs/1904.03211
The R -Process Alliance: Discovery of a Low- α , r -process-enhanced Metal-poor Star in the Galactic Halo
- Volume 14, Issue 14 - article #19
- Charli M. Sakari, Ian U. Roederer, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Christopher Sneden, John J. Cowan, George Wallerstein, Elizabeth M. Farrell, Kim A. Venn, Gal MatijeviÄ, Rosemary F. G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz,, Fred Watson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/874/2/148
The R-Process Alliance: Discovery of a low-alpha, r-Process-Enhanced Metal-Poor Star in the Galactic Halo. (arXiv:1903.01480v1 [astro-ph.SR])
- Volume 14, Issue 10 - article #12
- Charli M. Sakari, Ian U. Roederer, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Christopher Sneden, John J. Cowan, George Wallerstein, Elizabeth M. Farrell, Kim A. Venn, Gal Matijevic, Rosemary F.G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz, Fred Watson
- http://arxiv.org/abs/1903.01480
Abundances and kinematics of carbon-enhanced metal-poor stars in the Galactic halo*; A new classification scheme based on Sr and Ba. (arXiv:1901.05968v1 [astro-ph.SR])
- Volume 14, Issue 4 - article #1
- Camilla J. Hansen, Terese T. Hansen, Andreas Koch, Tim C. Beers, Birgitta Nordström, Vinicius M. Placco, Johannes Andersen
- http://arxiv.org/abs/1901.05968
The R-Process Alliance: Spectroscopic Follow-up of Low-metallicity Star Candidates from the Best & Brightest Survey
- Volume 14, Issue 3 - article #15
- Vinicius M. Placco, Rafael M. Santucci, Timothy C. Beers, Julio ChanamÃ©, MarÃa Paz SepÃºlveda, Johanna Coronado, Silvia Rossi, Young Sun Lee, Else Starkenburg, Kris Youakim, Manuel Barrientos, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Alexander P. Ji, Kaitlin C. Rasmussen, Ian U. Roederer, Charli M. Sakari,, Devin D. Whitten
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/870/2/122
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
The R -Process Alliance: A Comprehensive Abundance Analysis of HD 222925, a Metal-poor Star with an Extreme R -process Enhancement of [Eu/H] = −0.14
- Volume 13, Issue 40 - article #13
- Ian U. Roederer, Charli M. Sakari, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel,, Terese T. Hansen
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/865/2/129
The R-Process Alliance: First Release from the Northern Search for r-Process Enhanced Metal-Poor Stars in the Galactic Halo. (arXiv:1809.09156v1 [astro-ph.SR])
- Volume 13, Issue 39 - article #7
- Charli M. Sakari, Vinicius M. Placco, Elizabeth M. Farrell, Ian U. Roederer, George Wallerstein, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Erika M. Holmbeck, Christopher Sneden, Kim A. Venn, Christopher Evan Davis, Gal Matijevic, Rosemary F.G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz, Fred Watson
- http://arxiv.org/abs/1809.09156
The R -Process Alliance: Chemical Abundances for a Trio of r -process-enhanced Stars—One Strong, One Moderate, and One Mild
- Volume 13, Issue 35 - article #15
- Madelyn Cain, Anna Frebel, Maude Gull, Alexander P. Ji, Vinicius M. Placco, Timothy C. Beers, Jorge MelÃ©ndez, Rana Ezzeddine, Andrew R. Casey, Terese T. Hansen, Ian U. Roederer,, Charli Sakari
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/864/1/43
The R -Process Alliance: Discovery of the First Metal-poor Star with a Combined r - and s -process Element Signature
- Volume 13, Issue 32 - article #13
- Maude Gull, Anna Frebel, Madelyn G. Cain, Vinicius M. Placco, Alexander P. Ji, Carlo Abate, Rana Ezzeddine, Amanda I. Karakas, Terese T. Hansen, Charli Sakari, Erika M. Holmbeck, Rafael M. Santucci, Andrew R. Casey,, Timothy C. Beers
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/862/2/174
Galactic Archeology with the AEGIS Survey: The Evolution of Carbon and Iron in the Galactic Halo
- Volume 13, Issue 29 - article #20
- Jinmi Yoon, Timothy C. Beers, Sarah Dietz, Young Sun Lee, Vinicius M. Placco, Gary Da Costa, Stefan Keller, Christopher I. Owen,, Mahavir Sharma
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/861/2/146
Galactic Archeology with the AEGIS Survey: The Evolution of Carbon and Iron in the Galactic Halo. (arXiv:1806.04738v1 [astro-ph.SR])
- Volume 13, Issue 24 - article #4
- Jinmi Yoon, Timothy C. Beers, Sarah Dietz, Young Sun Lee, Vinicius M. Placco, Gary Da Costa, Stefan Keller, Christopher I. Owen, Mahavir Sharma
- http://arxiv.org/abs/1806.04738
The R -Process Alliance: 2MASS J09544277+5246414, the Most Actinide-enhanced R -II Star Known
- Volume 13, Issue 23 - article #7
- Erika M. Holmbeck, Timothy C. Beers, Ian U. Roederer, Vinicius M. Placco, Terese T. Hansen, Charli M. Sakari, Christopher Sneden, Chao Liu, Young Sun Lee, John J. Cowan,, Anna Frebel
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/859/2/L24
The R-Process Alliance: 2MASS J09544277+5246414, the Most Actinide-Enhanced R-II Star Known. (arXiv:1805.11925v1 [astro-ph.SR])
- Volume 13, Issue 22 - article #7
- Erika M. Holmbeck, Timothy C. Beers, Ian U. Roederer, Vinicius M. Placco, Terese T. Hansen, Charli M. Sakari, Christopher Sneden, Chao Liu, Young Sun Lee, John J. Cowan, Anna Frebel
- http://arxiv.org/abs/1805.11925
Spectroscopic Validation of Low-metallicity Stars from RAVE
- Volume 13, Issue 22 - article #9
- Vinicius M. Placco, Timothy C. Beers, Rafael M. Santucci, Julio ChanamÃ©, MarÃa Paz SepÃºlveda, Johanna Coronado, Sean D. Points, Catherine C. Kaleida, Silvia Rossi, Georges Kordopatis, Young Sun Lee, Gal MatijeviÄ, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Kaitlin C. Rasmussen, Ian U. Roederer, Charli M. Sakari,, Devin D. Whitten
- The Astronomical Journal
- http://iopscience.iop.org/1538-3881/155/6/256
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
Spectroscopic Validation of Low-Metallicity Stars from RAVE. (arXiv:1805.00608v1 [astro-ph.SR])
- Volume 13, Issue 18 - article #16
- Vinicius M. Placco, Timothy C. Beers, Rafael M. Santucci, Julio Chaname, Maria Paz Sepulveda, Johanna Coronado, Sean D. Points, Catherine C. Kaleida, Silvia Rossi, Georges Kordopatis, Young Sun Lee, Gal Matijevic, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Kaitlin C. Rasmussen, Ian U. Roederer, Charli M. Sakari, Devin D. Whitten
- http://arxiv.org/abs/1805.00608
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
The r -process Pattern of a Bright, Highly r -process-enhanced Metal-poor Halo Star at [Fe/H] ∼ −2
- Volume 13, Issue 7 - article #18
- Charli M. Sakari, Vinicius M. Placco, Terese Hansen, Erika M. Holmbeck, Timothy C. Beers, Anna Frebel, Ian U. Roederer, Kim A. Venn, George Wallerstein, Christopher Evan Davis, Elizabeth M. Farrell,, David Yong
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/854/2/L20
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
- Volume 12, Issue 34 - article #18
- Sten Hasselquist, Matthew Shetrone, Verne Smith, Jon Holtzman, Andrew McWilliam, J. G. FernÃ¡ndez-Trincado, Timothy C. Beers, Steven R. Majewski, David L. Nidever, Baitian Tang, Patricia B. Tissera, Emma FernÃ¡ndez Alvar, Carlos Allende Prieto, Andres Almeida, Borja Anguiano, Giuseppina Battaglia, Leticia Carigi, Gloria Delgado Inglada, Peter Frinchaboy, D. A. GarcÃa-HernÃ¡ndez, Doug Geisler, Dante Minniti, Vinicius M. Placco, Mathias Schultheis, Jennifer Sobeck,, Sandro Villanova
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/845/2/162
RAVE J203843.2–002333: The First Highly R-process-enhanced Star Identified in the RAVE Survey
- Volume 12, Issue 29 - article #21
- Vinicius M. Placco, Erika M. Holmbeck, Anna Frebel, Timothy C. Beers, Rebecca A. Surman, Alexander P. Ji, Rana Ezzeddine, Sean D. Points, Catherine C. Kaleida, Terese T. Hansen, Charli M. Sakari,, Andrew R. Casey
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/844/1/18
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy. (arXiv:1707.03456v1 [astro-ph.GA])
- Volume 12, Issue 28 - article #2
- Sten Hasselquist, Matthew Shetrone, Verne Smith, Jon Holtzman, Andrew McWilliam, J. G. Fernández-Trincado, Timothy C. Beers, Steven R. Majewski, David L. Nidever, Baitian Tang, Patricia B. Tissera, Emma Fernández Alvar, Carlos Allende Prieto, Andres Almeida, Borja Anguiano, Giuseppina Battaglia, Leticia Carigi, Gloria Delgado Inglada, Peter Frinchaboy, D. A. García-Hernández, Doug Geisler, Dante Minniti, Vinicius M. Placco, Mathias Schultheis, Jennifer Sobeck, Sandro Villanova
- http://arxiv.org/abs/1707.03456
RAVE J203843.2-002333: The first highly r-process-enhanced star identified in the RAVE survey. (arXiv:1706.02934v1 [astro-ph.SR])
- Volume 12, Issue 24 - article #10
- Vinicius M. Placco, Erika M. Holmbeck, Anna Frebel, Timothy C. Beers, Rebecca A. Surman, Alexander P. Ji, Rana Ezzeddine, Sean D. Points, Catherine C. Kaleida, Terese T. Hansen, Charli M. Sakari, Andrew R. Casey
- http://arxiv.org/abs/1706.02934
Bright Metal-Poor Stars from the Hamburg/ESO Survey. II. A Chemodynamical Analysis
- Volume 12, Issue 3 - article #7
- Timothy C. Beers, Vinicius M. Placco, Daniela Carollo, Silvia Rossi, Young Sun Lee, Anna Frebel, John E. Norris, Sarah Dietz,, Thomas Masseron
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/835/1/81
Identification of Neodymium in the Apogee H-Band Spectra
- Volume 11, Issue 50 - article #17
- Sten Hasselquist, Matthew Shetrone, Katia Cunha, Verne V. Smith, Jon Holtzman, J. E. Lawler, Carlos Allende Prieto, Timothy C. Beers, Drew Chojnowski, J. G. FernÃ¡ndez-Trincado, D. A. GarcÃa-HernÃ¡ndez, Fred R. Hearty, Steven R. Majewski, C. B. Pereira, Vinicius M. Placco, Sandro Villanova,, Olga Zamora
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/833/1/81
OBSERVATIONAL CONSTRAINTS ON FIRST-STAR NUCLEOSYNTHESIS. I. EVIDENCE FOR MULTIPLE PROGENITORS OF CEMP-NO STARS
- Volume 11, Issue 50 - article #18
- Jinmi Yoon, Timothy C. Beers, Vinicius M. Placco, Kaitlin C. Rasmussen, Daniela Carollo, Siyu He, Terese T. Hansen, Ian U. Roederer,, Jeff Zeanah
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/833/1/20
OBSERVATIONAL CONSTRAINTS ON FIRST-STAR NUCLEOSYNTHESIS. II. SPECTROSCOPY OF AN ULTRA METAL-POOR CEMP-NO STAR
- Volume 11, Issue 50 - article #19
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Jinmi Yoon, Anirudh Chiti, Alexander Heger, Conrad Chan, Andrew R. Casey,, Norbert Christlieb
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/833/1/21
Bright Metal-Poor Stars from the Hamburg/ESO Survey. II. A Chemodynamical Analysis. (arXiv:1611.03762v1 [astro-ph.SR])
- Volume 11, Issue 47 - article #2
- Timothy C. Beers, Vinicius M. Placco, Daniela Carollo, Silvia Rossi, Anna Frebel, John E. Norris, Sarah Dietz, Thomas Masseron
- http://arxiv.org/abs/1611.03762
G64-12 and G64-37 Are Carbon-enhanced Metal-poor Stars
- Volume 11, Issue 39 - article #22
- Vinicius M. Placco, Timothy C. Beers, Henrique Reggiani,, Jorge MelÃ©ndez
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/829/2/L24
G64-12 and G64-37 are Carbon-Enhanced Metal-Poor Stars. (arXiv:1609.00679v1 [astro-ph.SR])
- Volume 11, Issue 37 - article #9
- Vinicius M. Placco, Timothy C. Beers, Henrique Reggiani, Jorge Melendez
- http://arxiv.org/abs/1609.00679
Observational Constraints on First-Star Nucleosynthesis. II. Spectroscopy of an Ultra Metal-Poor CEMP-no Star. (arXiv:1609.02134v1 [astro-ph.SR])
- Volume 11, Issue 37 - article #12
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Jinmi Yoon, Anirudh Chiti, Alexander Heger, Conrad Chan, Andrew R. Casey, Norbert Christlieb
- http://arxiv.org/abs/1609.02134

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