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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
The Rise of the r-process in the Gaia-Sausage/Enceladus Dwarf Galaxy
- Volume 19, Issue 42 - article #16
- Xiaowei Ou, Alexander P. Ji, Anna Frebel, Rohan P. Naidu, Guilherme Limberg
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ad6f9b
Discovery of a Metal-poor Red Giant Star with the Highest Ultralithium Enhancement
- Volume 19, Issue 40 - article #9
- Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel, Ian U. Roederer, Ella Xi Wang, Yangyang Li, Zoe Hackshaw, Timothy C. Beers, Anna Frebel, Terese T. Hansen
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ad6004
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 40 - article #11
- 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
- The Astrophysical Journal Supplement
- https://doi.org/10.3847/1538-4365/ad6f0f
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 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 oldest stars with low neutron-capture element abundances and origins in ancient dwarf galaxies
- Volume 19, Issue 20 - article #5
- Hillary Diane Andales, Ananda Santos Figueiredo, Casey Gordon Fienberg, Mohammad K. Mardini, Anna Frebel
- https://arxiv.org/abs/2405.07856
A Strontium-rich Ultra Metal-poor Star in the Atari Disk Component
- Volume 19, Issue 7 - article #1
- Mohammad K. Mardini Anna Frebel Anirudh Chiti
- https://arxiv.org/abs/2402.07046
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
HD 222925: A New Opportunity to Explore the Astrophysical and Nuclear Conditions of r-process Sites
- Volume 18, Issue 26 - article #8
- Erika M. Holmbeck, Rebecca Surman, Ian U. Roederer, G. C. McLaughlin, Anna Frebel
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/acccf3
Metal-poor stars observed with the Magellan Telescope. IV. Neutron-capture element signatures in 27 main-sequence stars. (arXiv:2305.05363v1 [astro-ph.GA])
- Volume 18, Issue 19 - article #4
- Mohammad K. Mardini, Anna Frebel, Leyatt Betre, Heather Jacobson, John E. Norris, Norbert Christlieb
- http://arxiv.org/abs/2305.05363
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
Observations of R-Process Stars in the Milky Way and Dwarf Galaxies. (arXiv:2302.09188v1 [astro-ph.SR])
- Volume 18, Issue 8 - article #7
- Anna Frebel (MIT), Alexander P. Ji (University of Chicago)
- http://arxiv.org/abs/2302.09188
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
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
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
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
HD 222925: a New Opportunity to Explore the Astrophysical and Nuclear Conditions of r-process Sites. (arXiv:2210.10122v1 [astro-ph.SR])
- Volume 17, Issue 41 - article #4
- Erika M. Holmbeck, Rebecca Surman, Ian U. Roederer, G. C. McLaughlin, Anna Frebel
- http://arxiv.org/abs/2210.10122
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 R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks
- Volume 17, Issue 34 - article #7
- 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
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ac85bc
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
Robust Clustering of the Local Milky Way Stellar Kinematic Substructures with Gaia eDR3. (arXiv:2208.01056v1 [astro-ph.GA])
- Volume 17, Issue 31 - article #6
- Xiaowei Ou, Lina Necib, Anna Frebel
- http://arxiv.org/abs/2208.01056
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
The Atari Disk, a Metal-Poor Stellar Population in the Disk System of the Milky Way. (arXiv:2206.08459v1 [astro-ph.GA])
- Volume 17, Issue 25 - article #5
- Mohammad K. Mardini, Anna Frebel, Anirudh Chiti, Yohai Meiron, Kaley V. Brauer, Xiaowei Ou
- http://arxiv.org/abs/2206.08459
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
The Chemical Composition of Extreme-velocity Stars
- Volume 17, Issue 19 - article #6
- Henrique Reggiani, Alexander P. Ji, Kevin C. Schlaufman, Anna Frebel, Lina Necib, Tyler Nelson, Keith Hawkins, Jhon Yana Galarza
- Astronomical Journal
- https://doi.org/10.3847/1538-3881/ac62d9
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
Formation of an Extended Stellar Halo around an Ultra-faint Dwarf Galaxy Following One of the Earliest Mergers from Galactic Building Blocks
- Volume 16, Issue 24 - article #8
- Yuta Tarumi, Naoki Yoshida,, Anna Frebel
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/914/1/L10
Stellar Metallicities from SkyMapper Photometry. II. Precise Photometric Metallicities of ∼280,000 Giant Stars with [Fe/H] < −0.75 in the Milky Way
- Volume 16, Issue 23 - article #8
- Anirudh Chiti, Anna Frebel, Mohammad K. Mardini, Tatsuya W. Daniel, Xiaowei Ou,, Anastasiia V. Uvarova
- The Astrophysical Journal Supplement Series
- http://iopscience.iop.org/0067-0049/254/2/31
R -process-rich Stellar Streams in the Milky Way
- Volume 16, Issue 19 - article #8
- Maude Gull, Anna Frebel, Karina Hinojosa, Ian U. Roederer, Alexander P. Ji,, Kaley Brauer
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/912/1/52
Stellar Metallicities from SkyMapper Photometry II: Precise photometric metallicities of $sim$280,000 giant stars with [Fe/H] $< -0.75$ in the Milky Way. (arXiv:2103.16660v1 [astro-ph.GA])
- Volume 16, Issue 14 - article #5
- Anirudh Chiti, Anna Frebel, Mohammad K. Mardini, Tatsuya W. Daniel, Xiaowei Ou, Anastasiia V. Uvarova
- http://arxiv.org/abs/2103.16660
The Metal-Poor Metallicity Distribution of the Ancient Milky Way. (arXiv:2103.16642v1 [astro-ph.GA])
- Volume 16, Issue 14 - article #6
- Anirudh Chiti, Mohammad K. Mardini, Anna Frebel, Tatsuya Daniel
- http://arxiv.org/abs/2103.16642
Formation of an extended stellar halo around an ultra-faint dwarf galaxy following one of the earliest mergers from galactic building blocks. (arXiv:2103.01962v1 [astro-ph.GA])
- Volume 16, Issue 10 - article #1
- Yuta Tarumi, Naoki Yoshida, Anna Frebel
- http://arxiv.org/abs/2103.01962
R-process-rich stellar streams in the Milky Way. (arXiv:2102.00066v1 [astro-ph.SR])
- Volume 16, Issue 6 - article #5
- Maude Gull (1,2), Anna Frebel (2), Karina Hinojosa (2), Ian U. Roederer (3,4), Alexander P. Ji (5), Kaley Brauer ((1) Department of Astronomy, University of California Berkeley, Berkeley, CA USA, (2) Department of Physics & Kavli Institute for Astrophysics, Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA, (3) Department of Astronomy, University of Michigan, Ann Arbor, MI, USA, (4) Joint Institute for Nuclear Astrophysics - Center for the Evolution of the Elements (JINA-CEE), USA, (5) Observatories of the Carnegie Institution for Science, Pasadena, CA, USA)
- http://arxiv.org/abs/2102.00066
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
The R-Process Alliance: Chemo-Dynamically Tagged Groups of Halo $r$-Process-Enhanced Stars Reveal a Shared Chemical-Evolution History. (arXiv:2012.13808v1 [astro-ph.GA])
- Volume 16, Issue 1 - article #3
- Dmitrii Gudin, Derek Shank, Timothy C. Beers, Zhen Yuan, Guilherme Limberg, Ian U. Roederer, Vinicius Placco, Erika M. Holmbeck, Sarah Dietz, Kaitlin C. Rasmussen, Terese T. Hansen, Charli M. Sakari, Rana Ezzeddine, Anna Frebel
- http://arxiv.org/abs/2012.13808
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
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
Collapsar R-Process Yields Can Reproduce [Eu/Fe] Abundance Scatter in Metal-Poor Stars. (arXiv:2010.15837v1 [astro-ph.HE])
- Volume 15, Issue 45 - article #1
- Kaley Brauer, Alexander P. Ji, Maria R. Drout, Anna Frebel
- http://arxiv.org/abs/2010.15837
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
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
Reconstructing Masses of Merging Neutron Stars from Stellar $R$-Process Abundance Signatures. (arXiv:2010.01621v1 [astro-ph.HE])
- Volume 15, Issue 41 - article #7
- Erika M. Holmbeck, Anna Frebel, G. C. McLaughlin, Rebecca Surman, Rodrigo Fernandez, Brian D. Metzger, Matthew R. Mumpower, Trevor M. Sprouse
- http://arxiv.org/abs/2010.01621
Discovery of 18 Stars with −3.10 < [Fe/H] < −1.45 in the Sagittarius Dwarf Galaxy
- Volume 15, Issue 41 - article #12
- Anirudh Chiti, Kylie Y. Hansen,, Anna Frebel
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/901/2/164
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 18 stars with -3.10 < [Fe/H] < -1.45 in the Sagittarius dwarf galaxy. (arXiv:2008.09901v1 [astro-ph.GA])
- Volume 15, Issue 35 - article #3
- Anirudh Chiti, Kylie Y. Hansen, Anna Frebel
- http://arxiv.org/abs/2008.09901
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: J1521-3538, a very metal-poor, extremely r-process-enhanced star with [Eu/Fe]=+2.2, and the class of r-III stars. (arXiv:2006.08080v1 [astro-ph.SR])
- Volume 15, Issue 25 - article #15
- Madelyn Cain (MIT, JINA), Anna Frebel (MIT, JINA), Alexander P. Ji (Carnegie), Vinicius M. Placco (Notre Dame, JINA), Rana Ezzeddine (MIT, JINA), Ian U. Roederer (U Michigan), Kohei Hattori (U Michigan, Carnegie Mellon), Timothy C. Beers (Notre Dame, JINA), Jorge Mélendez (Sao Paulo), Terese T. Hansen (Carnegie), Charli M. Sakari (San Francisco State U, JINA)
- http://arxiv.org/abs/2006.08080
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
Stellar Metallicities from SkyMapper Photometry I: A Study of the Tucana II Ultra-faint Dwarf Galaxy
- Volume 15, Issue 9 - article #15
- Anirudh Chiti, Anna Frebel, Helmut Jerjen, Dongwon Kim,, John E. Norris
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/891/1/8
Characterizing $r$-Process Sites through Actinide Production. (arXiv:2001.08792v1 [astro-ph.HE])
- Volume 15, Issue 5 - article #5
- Erika M. Holmbeck, Rebecca Surman, Anna Frebel, G. C. McLaughlin, Matthew R. Mumpower, Trevor M. Sprouse, Toshihiko Kawano, Nicole Vassh, Timothy C. Beers
- http://arxiv.org/abs/2001.08792
Stellar metallicities from SkyMapper photometry I: A study of the Tucana II ultra-faint dwarf galaxy. (arXiv:2001.07684v1 [astro-ph.GA])
- Volume 15, Issue 4 - article #6
- Anirudh Chiti, Anna Frebel, Helmut Jerjen, Dongwon Kim, John E. Norris
- http://arxiv.org/abs/2001.07684
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
Four Metal-poor Stars in the Sagittarius Dwarf Spheroidal Galaxy
- Volume 14, Issue 17 - article #10
- Anirudh Chiti, Anna Frebel
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/875/2/112
Neutron Star Mergers Might Not Be the Only Source of r -process Elements in the Milky Way
- Volume 14, Issue 17 - article #11
- Benoit CÃ´tÃ©, Marius Eichler, Almudena Arcones, Camilla J. Hansen, Paolo Simonetti, Anna Frebel, Chris L. Fryer, Marco Pignatari, Moritz Reichert, Krzysztof Belczynski,, Francesca Matteucci
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/875/2/106
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
Actinide-rich and Actinide-poor $r$-Process Enhanced Metal-Poor Stars do not Require Separate $r$-Process Progenitors. (arXiv:1904.02139v1 [astro-ph.HE])
- Volume 14, Issue 14 - article #2
- Erika M. Holmbeck, Anna Frebel, G. C. McLaughlin, Matthew R. Mumpower, Trevor M. Sprouse, Rebecca Surman
- http://arxiv.org/abs/1904.02139
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
Astro2020 Science White Paper: Local Dwarf Galaxy Archaeology. (arXiv:1903.09275v1 [astro-ph.GA])
- Volume 14, Issue 13 - article #1
- Alexander P. Ji (Carnegie Observatories), Rachel Beaton (Princeton University), Sukanya Chakrabarti (RIT), Gina Duggan (Caltech), Anna Frebel (MIT), Marla Geha (Yale), Matthew Hosek Jr (UCLA), Evan Kirby (Caltech), Ting Li (Fermilab), Ian Roederer (University of Michigan), Joshua Simon (Carnegie Observatories)
- http://arxiv.org/abs/1903.09275
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
The Origin of r -process Enhanced Metal-poor Halo Stars In Now-destroyed Ultra-faint Dwarf Galaxies
- Volume 14, Issue 6 - article #15
- Kaley Brauer, Alexander P. Ji, Anna Frebel, Gregory A. Dooley, Facundo A. GÃ³mez,, Brian W. OâShea
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/871/2/247
Chemical Abundance Signature of J0023+0307: A Second-generation Main-sequence Star with [Fe/H] < −6
- Volume 14, Issue 5 - article #3
- Anna Frebel, Alexander P. Ji, Rana Ezzeddine, Terese T. Hansen, Anirudh Chiti, Ian B. Thompson,, Thibault Merle
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/871/2/146
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
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
From Nuclei to the Cosmos: Tracing Heavy-Element Production with the Oldest Stars
- Volume 13, Issue 43 - article #1
- Anna Frebel
- https://www.annualreviews.org/doi/abs/10.1146/annurev-nucl-101917-021141?ai=sx&mi=3fndc3&af=R
JINAbase—A Database for Chemical Abundances of Metal-poor Stars
- Volume 13, Issue 43 - article #20
- Abdu Abohalima, Anna Frebel
- The Astrophysical Journal Supplement Series
- http://iopscience.iop.org/0067-0049/238/2/36
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
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
Neutron Star Mergers Might not be the Only Source of r-Process Elements in the Milky Way. (arXiv:1809.03525v1 [astro-ph.HE])
- Volume 13, Issue 37 - article #4
- Benoit Côté, Marius Eichler, Almudena Arcones, Camilla J. Hansen, Paolo Simonetti, Anna Frebel, Chris L. Fryer, Marco Pignatari, Moritz Reichert, Francesca Matteucci
- http://arxiv.org/abs/1809.03525
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. (arXiv:1808.09469v1 [astro-ph.SR])
- Volume 13, Issue 35 - article #9
- Ian U. Roederer (U. Michigan, JINA-CEE), Charli M. Sakari (U. Washington), Vinicius M. Placco (U. Notre Dame, JINA-CEE), Timothy C. Beers (U. Notre Dame, JINA-CEE), Rana Ezzeddine (MIT, JINA-CEE), Anna Frebel (MIT, JINA-CEE), Terese T. Hansen (Carnegie Observatories)
- http://arxiv.org/abs/1808.09469
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
Revisiting the Iron Abundance in the Hyper Iron-poor Star HE 1327–2326 with UV COS/ HST Data
- Volume 13, Issue 34 - article #9
- Rana Ezzeddine, Anna Frebel
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/863/2/168
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
Revisiting the iron abundance in the hyper iron-poor star HE$~$1327-2326 with UV COS/$HST$ data. (arXiv:1807.06153v1 [astro-ph.SR])
- Volume 13, Issue 29 - article #10
- Rana Ezzeddine, Anna Frebel
- http://arxiv.org/abs/1807.06153
The R-Process Alliance: Chemical Abundances for a Trio of R-Process-Enhanced Stars -- One Strong, One Moderate, One Mild. (arXiv:1807.03734v1 [astro-ph.SR])
- Volume 13, Issue 28 - article #13
- Madelyn Cain (MIT), Anna Frebel (MIT), Maude Gull (MIT), Alexander P. Ji (Carngie), Vinicius M. Placco (Notre Dame), Timothy C. Beers (Notre Dame), Jorge Melendez (Sao Paulo), Rana Ezzeddine (MIT, JINA), Andrew R. Casey (Monash), Terese T. Hansen (Carnegie), Ian U. Roederer (U Michigan), Charli Sakari (U Washington)
- http://arxiv.org/abs/1807.03734
From Nuclei to the Cosmos: Tracing Heavy-Element Production with the Oldest Stars. (arXiv:1806.08955v1 [astro-ph.SR])
- Volume 13, Issue 26 - article #2
- Anna Frebel (MIT)
- http://arxiv.org/abs/1806.08955
The R-Process Alliance: Discovery of the first metal-poor star with a combined r- and s-process element signature. (arXiv:1806.00645v1 [astro-ph.SR])
- Volume 13, Issue 23 - article #5
- Maude Gull (MIT), Anna Frebel (MIT, JINA), Madelyn G. Cain (MIT), Vinicius M. Placco (Notre Dame, JINA), Alexander P. Ji (carnegie), Carlo Abate (Bonn), Rana Ezzeddine (JINA, MIT) Amanda I. Karakas (Monash), Terese T. Hansen (Carnegie), Charli Sakari (UW), Erika M. Holmbeck (Notre Dame, JINA), Rafael M. Santucci (UGoias), Andrew R. Casey (Monash), Timothy C. Beers (Notre Dame, JINA)
- http://arxiv.org/abs/1806.00645
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
Chemical Abundances of New Member Stars in the Tucana II Dwarf Galaxy
- Volume 13, Issue 16 - article #19
- Anirudh Chiti, Anna Frebel, Alexander P. Ji, Helmut Jerjen, Dongwon Kim,, John E. Norris
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/857/1/74
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
From Actinides to Zinc: Using the Full Abundance Pattern of the Brightest Star in Reticulum II to Distinguish between Different r -process Sites
- Volume 13, Issue 14 - article #20
- Alexander P. Ji, Anna Frebel
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/856/2/138
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
Chemical Abundances of new member stars in the Tucana II dwarf galaxy. (arXiv:1803.01808v1 [astro-ph.GA])
- Volume 13, Issue 10 - article #2
- Anirudh Chiti, Anna Frebel, Alexander P. Ji, Helmut Jerjen, Dongwon Kim, John E. Norris
- http://arxiv.org/abs/1803.01808
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
Descendants of the first stars: the distinct chemical signature of second generation stars. (arXiv:1801.05044v1 [astro-ph.GA])
- Volume 13, Issue 3 - article #2
- Tilman Hartwig, Naoki Yoshida, Mattis Magg, Anna Frebel, Simon C. O. Glover, Facundo A. Gómez, Brendan Griffen, Miho N. Ishigaki, Alexander P. Ji, Ralf S. Klessen, Brian W. O'Shea, Nozomu Tominaga
- http://arxiv.org/abs/1801.05044

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