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Massachusetts Institute of Technology: Cambridge, MA, US

2017-07-01 to present | Associate Professor (Department of Physics)
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Anna Frebel

Works (50 of 92)

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Page 1 of 2

AEOS: Star-by-star Cosmological Simulations of Early Chemical Enrichment and Galaxy Formation

The Astrophysical Journal
2025-02-10 | Journal article
DOI: 10.3847/1538-4357/ada4a1
Contributors: Kaley Brauer; Andrew Emerick; Jennifer Mead; Alexander P. Ji; John H. Wise; Greg L. Bryan; Mordecai-Mark Mac Low; Benoit Côté; Eric P. Andersson; Anna Frebel
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AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback

The Astrophysical Journal
2025-02-10 | Journal article
DOI: 10.3847/1538-4357/ada3c1
Contributors: Jennifer Mead; Kaley Brauer; Greg L. Bryan; Mordecai-Mark Mac Low; Alexander P. Ji; John H. Wise; Andrew Emerick; Eric P. Andersson; Anna Frebel; Benoit Côté
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The black hole low-mass X-ray binary V404 Cygni is part of a wide triple

Nature
2024-11-14 | Journal article
DOI: 10.1038/s41586-024-08120-6
Contributors: Kevin B. Burdge; Kareem El-Badry; Erin Kara; Claude Canizares; Deepto Chakrabarty; Anna Frebel; Sarah C. Millholland; Saul Rappaport; Rob Simcoe; Andrew Vanderburg
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Discovery of a Metal-poor Red Giant Star with the Highest Ultralithium Enhancement

The Astrophysical Journal
2024-10-01 | Journal article
DOI: 10.3847/1538-4357/ad6004
Contributors: Jeremy Kowkabany; Rana Ezzeddine; Corinne Charbonnel; Ian U. Roederer; Ella Xi Wang; Yangyang Li; Zoe Hackshaw; Timothy C. Beers; Anna Frebel; Terese T. Hansen et al.
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The R-process Alliance: Fifth Data Release from the Search for R-process-enhanced Metal-poor Stars in the Galactic Halo with the GTC*

The Astrophysical Journal Supplement Series
2024-10-01 | Journal article
DOI: 10.3847/1538-4365/ad6f0f
Contributors: 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 et al.
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The Rise of the r-process in the Gaia-Sausage/Enceladus Dwarf Galaxy ∗

The Astrophysical Journal
2024-10-01 | Journal article
DOI: 10.3847/1538-4357/ad6f9b
Contributors: Xiaowei 筱葳 Ou 欧; Alexander P. Ji; Anna Frebel; Rohan P. Naidu; Guilherme Limberg
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The R-Process Alliance: 2MASS J22132050–5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45*

The Astrophysical Journal
2024-08-01 | Journal article
DOI: 10.3847/1538-4357/ad57bf
Contributors: Ian U. Roederer; Timothy C. Beers; Kohei Hattori; Vinicius M. Placco; Terese T. Hansen; Rana Ezzeddine; Anna Frebel; Erika M. Holmbeck; Charli M. Sakari
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The oldest stars with low neutron-capture element abundances and origins in ancient dwarf galaxies

Monthly Notices of the Royal Astronomical Society
2024-05-06 | Journal article
DOI: 10.1093/mnras/stae670
Contributors: Hillary Diane Andales; Ananda Santos Figueiredo; Casey Gordon Fienberg; Mohammad K Mardini; Anna Frebel
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Signatures of Tidal Disruption of the Hercules Ultrafaint Dwarf Galaxy*

The Astrophysical Journal
2024-05-01 | Journal article
DOI: 10.3847/1538-4357/ad2f27
Contributors: Xiaowei 筱葳 Ou 欧; Anirudh Chiti; Nora Shipp; Joshua D. Simon; Marla Geha; Anna Frebel; Mohammad K. Mardini; Denis Erkal; Lina Necib
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Enrichment by extragalactic first stars in the Large Magellanic Cloud

Nature Astronomy
2024-03-20 | Journal article
DOI: 10.1038/s41550-024-02223-w
Contributors: Anirudh Chiti; Mohammad Mardini; Guilherme Limberg; Anna Frebel; Alexander P. Ji; Henrique Reggiani; Peter Ferguson; Hillary Diane Andales; Kaley Brauer; Ting S. Li et al.
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The R-Process Alliance: detailed chemical composition of an r-process enhanced star with UV and optical spectroscopy

Monthly Notices of the Royal Astronomical Society
2024-03-18 | Journal article
DOI: 10.1093/mnras/stae255
Contributors: Shivani P Shah; Rana Ezzeddine; Ian U Roederer; Terese T Hansen; Vinicius M Placco; Timothy C Beers; Anna Frebel; Alexander P Ji; Erika M Holmbeck; Jennifer Marshall et al.
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Metal-poor stars observed with the Magellan Telescope – IV. Neutron-capture element signatures in 27 main-sequence stars

Monthly Notices of the Royal Astronomical Society
2024-01-23 | Journal article
DOI: 10.1093/mnras/stad3925
Contributors: Mohammad K Mardini; Anna Frebel; Leyatt Betre; Heather Jacobson; John E Norris; Norbert Christlieb
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The dark matter profile of the Milky Way inferred from its circular velocity curve

Monthly Notices of the Royal Astronomical Society
2024-01-13 | Journal article
DOI: 10.1093/mnras/stae034
Contributors: Xiaowei Ou; Anna-Christina Eilers; Lina Necib; Anna Frebel
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A strontium-rich ultra-metal-poor star in the Atari disc component

Monthly Notices of the Royal Astronomical Society: Letters
2023-12-27 | Journal article
DOI: 10.1093/mnrasl/slad197
Contributors: Mohammad K Mardini; Anna Frebel; Anirudh Chiti
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Element abundance patterns in stars indicate fission of nuclei heavier than uranium

Science
2023-12-08 | Journal article
DOI: 10.1126/science.adf1341
Contributors: Ian U. Roederer; Nicole Vassh; Erika M. Holmbeck; Matthew R. Mumpower; Rebecca Surman; John J. Cowan; Timothy C. Beers; Rana Ezzeddine; Anna Frebel; Terese T. Hansen et al.
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HD 222925: A New Opportunity to Explore the Astrophysical and Nuclear Conditions of r-process Sites

The Astrophysical Journal
2023-07-01 | Journal article
DOI: 10.3847/1538-4357/acccf3
Contributors: Erika M. Holmbeck; Rebecca Surman; Ian U. Roederer; G. C. McLaughlin; Anna Frebel
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Metal Mixing in the r-process Enhanced Ultrafaint Dwarf Galaxy Reticulum II*

The Astronomical Journal
2023-03-01 | Journal article
DOI: 10.3847/1538-3881/acad84
Contributors: 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 et al.
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Detailed Chemical Abundances of Stars in the Outskirts of the Tucana II Ultrafaint Dwarf Galaxy*

The Astronomical Journal
2023-02-01 | Journal article
DOI: 10.3847/1538-3881/aca416
Contributors: Anirudh Chiti; Anna Frebel; Alexander P. Ji; Mohammad K. Mardini; Xiaowei Ou; Joshua D. Simon; Helmut Jerjen; Dongwon Kim; John E. Norris
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The R-Process Alliance: Chemodynamically Tagged Groups. II. An Extended Sample of Halo r-process-enhanced Stars

The Astrophysical Journal
2023-01-01 | Journal article
DOI: 10.3847/1538-4357/aca322
Contributors: 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 et al.
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Magellan/IMACS Spectroscopy of Grus I: A Low Metallicity Ultra-faint Dwarf Galaxy*

The Astrophysical Journal
2022-11-01 | Journal article
DOI: 10.3847/1538-4357/ac96ed
Contributors: Anirudh Chiti; Joshua D. Simon; Anna Frebel; Andrew B. Pace; Alexander P. Ji; Ting S. Li
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Possibilities and Limitations of Kinematically Identifying Stars from Accreted Ultra-faint Dwarf Galaxies

The Astrophysical Journal
2022-09-01 | Journal article
DOI: 10.3847/1538-4357/ac85b9
Contributors: Kaley Brauer; Hillary Diane Andales; Alexander P. Ji; Anna Frebel; Mohammad K. Mardini; Facundo A. Gómez; Brian W. O’Shea
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The Atari Disk, a Metal-poor Stellar Population in the Disk System of the Milky Way

The Astrophysical Journal
2022-09-01 | Journal article
DOI: 10.3847/1538-4357/ac8102
Contributors: Mohammad K. Mardini; Anna Frebel; Anirudh Chiti; Yohai Meiron; Kaley V. Brauer; Xiaowei Ou
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The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks*

The Astrophysical Journal
2022-09-01 | Journal article
DOI: 10.3847/1538-4357/ac85bc
Contributors: 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 et al.
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The Chemical Composition of Extreme-velocity Stars* †

The Astronomical Journal
2022-06-01 | Journal article
DOI: 10.3847/1538-3881/ac62d9
Contributors: Henrique Reggiani; Alexander P. Ji; Kevin C. Schlaufman; Anna Frebel; Lina Necib; Tyler Nelson; Keith Hawkins; Jhon Yana Galarza
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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*

The Astrophysical Journal Supplement Series
2022-06-01 | Journal article
DOI: 10.3847/1538-4365/ac5cbc
Contributors: 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 et al.
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r-Process elements from magnetorotational hypernovae

Nature
2021-07-08 | Journal article
DOI: 10.1038/s41586-021-03611-2
Contributors: D. Yong; C. Kobayashi; G. S. Da Costa; M. S. Bessell; A. Chiti; A. Frebel; K. Lind; A. D. Mackey; T. Nordlander; M. Asplund et al.
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Collapsar R-process Yields Can Reproduce [Eu/Fe] Abundance Scatter in Metal-poor Stars

The Astrophysical Journal
2021-07-01 | Journal article
DOI: 10.3847/1538-4357/ac00b2
Contributors: Kaley Brauer; Alexander P. Ji; Maria R. Drout; Anna Frebel
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Formation of an Extended Stellar Halo around an Ultra-faint Dwarf Galaxy Following One of the Earliest Mergers from Galactic Building Blocks

The Astrophysical Journal Letters
2021-06-01 | Journal article
DOI: 10.3847/2041-8213/ac024e
Contributors: Yuta Tarumi; Naoki Yoshida; Anna Frebel
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Stellar Metallicities from SkyMapper Photometry. II. Precise Photometric Metallicities of ∼280,000 Giant Stars with [Fe/H] < −0.75 in the Milky Way

The Astrophysical Journal Supplement Series
2021-06-01 | Journal article
DOI: 10.3847/1538-4365/abf73d
Contributors: Anirudh Chiti; Anna Frebel; Mohammad K. Mardini; Tatsuya W. Daniel; Xiaowei Ou; Anastasiia V. Uvarova
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R-process-rich Stellar Streams in the Milky Way*

The Astrophysical Journal
2021-05-01 | Journal article
DOI: 10.3847/1538-4357/abea1a
Contributors: Maude Gull; Anna Frebel; Karina Hinojosa; Ian U. Roederer; Alexander P. Ji; Kaley Brauer
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The Metal-poor Metallicity Distribution of the Ancient Milky Way

The Astrophysical Journal Letters
2021-04-01 | Journal article
DOI: 10.3847/2041-8213/abd629
Contributors: Anirudh Chiti; Mohammad K. Mardini; Anna Frebel; Tatsuya Daniel
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Reconstructing Masses of Merging Neutron Stars from Stellar r-process Abundance Signatures

The Astrophysical Journal
2021-03-01 | Journal article
DOI: 10.3847/1538-4357/abd720
Contributors: Erika M. Holmbeck; Anna Frebel; G. C. McLaughlin; Rebecca Surman; Rodrigo Fernández; Brian D. Metzger; Matthew R. Mumpower; T. M. Sprouse
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An extended halo around an ancient dwarf galaxy

Nature Astronomy
2021-02-01 | Journal article
DOI: 10.1038/s41550-020-01285-w
Contributors: Anirudh Chiti; Anna Frebel; Joshua D. Simon; Denis Erkal; Laura J. Chang; Lina Necib; Alexander P. Ji; Helmut Jerjen; Dongwon Kim; John E. Norris
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Metal-poor Stars Observed with the Southern African Large Telescope

The Astrophysical Journal
2020-12-01 | Journal article
DOI: 10.3847/1538-4357/abc005
Contributors: Kaitlin C. Rasmussen; Joseph Zepeda; Timothy C. Beers; Vinicius M. Placco; Éric Depagne; Anna Frebel; Sarah Dietz; Tilman Hartwig
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Cosmological Insights into the Early Accretion of r-process-enhanced Stars. I. A Comprehensive Chemodynamical Analysis of LAMOST J1109+0754

The Astrophysical Journal
2020-11-01 | Journal article
DOI: 10.3847/1538-4357/abbc13
Contributors: Mohammad K. Mardini; Vinicius M. Placco; Yohai Meiron; Marina Ishchenko; Branislav Avramov; Matteo Mazzarini; Peter Berczik; Manuel Arca Sedda; Timothy C. Beers; Anna Frebel et al.
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Detection of Pb II in the Ultraviolet Spectra of Three Metal-poor Stars*

The Astrophysical Journal Letters
2020-10-01 | Journal article
DOI: 10.3847/2041-8213/abbc21
Contributors: 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 et al.
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Discovery of 18 Stars with −3.10 < [Fe/H] < −1.45 in the Sagittarius Dwarf Galaxy*

The Astrophysical Journal
2020-10-01 | Journal article
DOI: 10.3847/1538-4357/abb1ae
Contributors: Anirudh Chiti; Kylie Y. Hansen; Anna Frebel
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The R-Process Alliance: First Magellan/MIKE Release from the Southern Search for R-process-enhanced Stars*

The Astrophysical Journal
2020-08-01 | Journal article
DOI: 10.3847/1538-4357/ab9d1a
Contributors: 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 et al.
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The R-Process Alliance: Fourth Data Release from the Search for R-process-enhanced Stars in the Galactic Halo*

The Astrophysical Journal Supplement Series
2020-08-01 | Journal article
DOI: 10.3847/1538-4365/ab9c19
Contributors: 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 et al.
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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*

The Astrophysical Journal
2020-07-01 | Journal article
DOI: 10.3847/1538-4357/ab97ba
Contributors: Madelyn Cain; Anna Frebel; Alexander P. Ji; Vinicius M. Placco; Rana Ezzeddine; Ian U. Roederer; Kohei Hattori; Timothy C. Beers; Jorge Meléndez; Terese T. Hansen et al.
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Lifting the secrets of stardust

Nature Astronomy
2020-05-14 | Journal article
DOI: 10.1038/s41550-020-1115-2
Contributors: Anna Frebel; Rebecca Surman
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Stellar Metallicities from SkyMapper Photometry I: A Study of the Tucana II Ultra-faint Dwarf Galaxy

The Astrophysical Journal
2020-03-01 | Journal article
DOI: 10.3847/1538-4357/ab6d72
Contributors: Anirudh Chiti; Anna Frebel; Helmut Jerjen; Dongwon Kim; John E. Norris
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The lowest detected stellar Fe abundance: the halo star SMSS J160540.18−144323.1

Monthly Notices of the Royal Astronomical Society: Letters
2019-09-01 | Journal article
DOI: 10.1093/mnrasl/slz109
Contributors: T Nordlander; M S Bessell; G S Da Costa; A D Mackey; M Asplund; A R Casey; A Chiti; R Ezzeddine; A Frebel; K Lind et al.
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Actinide-rich and Actinide-poor r-process-enhanced Metal-poor Stars Do Not Require Separate r-process Progenitors

The Astrophysical Journal
2019-08-10 | Journal article
DOI: 10.3847/1538-4357/ab2a01
Contributors: Erika M. Holmbeck; Anna Frebel; G. C. McLaughlin; Matthew R. Mumpower; Trevor M. Sprouse; Rebecca Surman
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Keck HIRES spectroscopy of SkyMapper commissioning survey candidate extremely metal-poor stars

Monthly Notices of the Royal Astronomical Society
2019-06-01 | Journal article
DOI: 10.1093/mnras/stz645
Contributors: A F Marino; G S Da Costa; A R Casey; M Asplund; M S Bessell; A Frebel; S C Keller; K Lind; A D Mackey; S J Murphy et al.
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Evidence for an Aspherical Population III Supernova Explosion Inferred from the Hyper-metal-poor Star HE 1327–2326∗

The Astrophysical Journal
2019-05-10 | Journal article
DOI: 10.3847/1538-4357/ab14e7
Contributors: Rana Ezzeddine; Anna Frebel; Ian U. Roederer; Nozomu Tominaga; Jason Tumlinson; Miho Ishigaki; Ken’ichi Nomoto; Vinicius M. Placco; Wako Aoki
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Four Metal-poor Stars in the Sagittarius Dwarf Spheroidal Galaxy∗

The Astrophysical Journal
2019-04-20 | Journal article
DOI: 10.3847/1538-4357/ab0f9f
Contributors: Anirudh Chiti; Anna Frebel
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Neutron Star Mergers Might Not Be the Only Source of r-process Elements in the Milky Way

The Astrophysical Journal
2019-04-20 | Journal article
DOI: 10.3847/1538-4357/ab10db
Contributors: Benoit Côté; Marius Eichler; Almudena Arcones; Camilla J. Hansen; Paolo Simonetti; Anna Frebel; Chris L. Fryer; Marco Pignatari; Moritz Reichert; Krzysztof Belczynski et al.
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The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo

The Astrophysical Journal
2019-04-01 | Journal article
DOI: 10.3847/1538-4357/ab0c02
Contributors: 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 et al.
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Chemical Abundance Signature of J0023+0307: A Second-generation Main-sequence Star with [Fe/H] < −6*

The Astrophysical Journal
2019-02-01 | Journal article
DOI: 10.3847/1538-4357/aae848
Contributors: Anna Frebel; Alexander P. Ji; Rana Ezzeddine; Terese T. Hansen; Anirudh Chiti; Ian B. Thompson; Thibault Merle
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Peer review (3 reviews for 3 publications/grants)

Review activity for Nature (1)
Review activity for Nature astronomy. (1)
Review activity for Solar physics. (1)
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