AF
Anna Frebel
astro-ph.GAastro-ph.SRastro-ph.HEastro-phastro-ph.COnucl-thnucl-exastro-ph.IMastro-ph.EPcollaboration
On Valency
published · living versionsW_w9a89kk8·v1 · currentpublished
The Most Metal-Poor Stars. IV. The Two Populations With [Fe/H] < -3.0
with John E. Norris, David Yong, M. S. Bessell, N. Christlieb +6
1 version
Preprints & journals
209 papers in the corpus · 2003–2026The -Process Alliance: On J0010$-$1735, an Accreted, Chemically Unusual, Metal-poor Star with -process Enhancement2610.14987v1 · Zoe Hackshaw, Rana Ezzeddine, Shivani P. Shah et al.2026 · 0 citationsarXiv
Chemo-dynamical Analysis of a CNO-Enhanced Ultra Metal-poor Star (): Insights into Early Enrichment by Faint Population III Supernova2609.13373v2 · Guilherme Limberg, Vinicius M. Placco, Alexander P. Ji et al.2026 · 0 citationsarXiv
Sr and Ba yields of the First Generation(s) of stars: Constraints from metal-poor stars2608.17001v1 · Sarah Hughes, Anna Frebel, Xiaowei Ou et al.2026 · 0 citationsarXiv
Carbon Abundances in Metal-Poor Stars Reveal Distinct Galaxy and Star Formation Pathways in the Early Universe2606.12617v1 · Alexander Yelland, Anna Frebel, Xiaowei Ou et al.2026 · 0 citationsarXiv
The \emph{R}-process Alliance: A Bright, Strongly \emph{R}-process-enhanced Extremely Metal-poor Star Observed with GHOST2605.20614v1 · Mohammad K. Mardini, Anna Frebel, Vinicius M. Placco et al.2026 · 0 citationsarXiv
The Metallicity Distribution of the Ultra-Faint Dwarf Galaxy Segue 12605.12810v2 · Daisy Bissonette, Alexander P. Ji, Joshua D. Simon et al.2026 · 0 citationsarXiv
The -Process Alliance: The -Process Enhancement of Stars from Chemodynamically Tagged Groups in the Milky Way Halo2605.11087v1 · Jessica Merritt Agnos, Charli M. Sakari, Pedro Silva et al.2026 · 0 citationsarXiv
Successful careers in STEMM through leadership and professional development training.42113475 · Rigos, Angeliki A, Alsharqi, Maryam, Frebel, Anna2026 · 0 citationsAmerican journal of physiology. Heart and circulatory physiology. 2026;330(6):H1925-H1928
The -Process Alliance: Actinide Abundances, Variation, and Evolution in Metal-Poor Stars2604.12892v2 · Shivani P. Shah, Rana Ezzeddine, Erika M. Holmbeck et al.2026 · 0 citationsVolume 1009, Issue 2, 2026, 27pp
The R-Process Alliance: Exploring the cosmic scatter among ten r-process sites with stellar abundances2510.25500v1 · Mila Racca, Terese T. Hansen, Ian U. Roederer et al.2025 · 6 citationsA&A 704, A282 (2025)
Aeos is Mixing it Up: The (In)homogeneity of Metal Mixing Following Population III Star Formation2509.13580v1 · Jennifer Mead, Kaley Brauer, Greg L. Bryan et al.2025 · 1 citationarXiv
Discovery of an Star in XP Spectra2508.00067v1 · Guilherme Limberg, Vinicius M. Placco, Alexander P. Ji et al.2025 · 13 citationsarXiv
A Bimodal Metallicity Distribution Function in the Ultra-Faint Dwarf Galaxy Reticulum II2506.16462v2 · Alice M. Luna, Alexander P. Ji, Anirudh Chiti et al.2025 · 4 citationsarXiv
Probing Abundance Variations among Multiple Stellar Populations in the Metal-Poor Globular Cluster NGC 2298 using Gemini-South/GHOST2505.04001v1 · Avrajit Bandyopadhyay, Rana Ezzeddine, Vinicius M. Placco et al.2025 · 4 citationsarXiv
Deciphering the Origins of the Elements Through Galactic Archeology2503.18233v1 · Khalil Farouqi, Anna Frebel, Friedrich-Karl Thielemann2025 · 7 citationsarXiv
The R-Process Alliance: Hunting for gold in the near-UV spectrum of 2MASS J05383296-59042802503.13426v1 · Terese T. Hansen, Ian U. Roederer, Shivani P. Shah et al.2025 · 5 citationsA&A 697, A127 (2025)
Decoding the Galactic Twirl: The Downfall of Milky Way-mass Galaxies Rotation Curves in the FIRE Simulations2503.05877v1 · Xiaowei Ou, Lina Necib, Andrew Wetzel et al.2025 · 1 citationarXiv
Aeos: The Impact of Population III Initial Mass Function and Star-by-Star Models in Galaxy Simulations2502.20433v3 · Kaley Brauer, Jennifer Mead, John H. Wise et al.2025 · 2 citationsBrauer et al 2025 ApJ 993 2
Early r-process Enrichment and Hierarchical Assembly Across the Sagittarius Dwarf Galaxy2501.14061v1 · Xiaowei Ou, Alexander Yelland, Anirudh Chiti et al.2025 · 10 citationsarXiv
GLIMPSE: An ultra-faint 10 Pop III Galaxy Candidate and First Constraints on the Pop III UV Luminosity Function at 2501.11678v2 · Seiji Fujimoto, Rohan P. Naidu, John Chisholm et al.2025 · 3 citationsarXiv
A gravitational wave detectable candidate Type Ia supernova progenitor2411.19916v3 · Emma T. Chickles, Kevin B. Burdge, Joheen Chakraborty et al.2024 · 4 citationsarXiv
Metal-Poor Stars in the Milky Way System2411.15415v1 · Anna Frebel2024 · 1 citationarXiv
Aeos: Transport of Metals from Minihalos following Population III Stellar Feedback2411.14209v2 · Jennifer Mead, Kaley Brauer, Greg L. Bryan et al.2024 · 7 citationsApJ, 980 (2025) 62
The black hole low-mass X-ray binary V404 Cygni is part of a wide triple.39443805 · Burdge, Kevin B, El-Badry, Kareem, Kara, Erin et al.2024 · 27 citationsNature. 2024;635(8038):316-320
AEOS: Star-by-Star Cosmological Simulations of Early Chemical Enrichment and Galaxy Formation2410.16366v2 · Kaley Brauer, Andrew Emerick, Jennifer Mead et al.2024 · 24 citationsarXiv
The -Process Alliance: Enrichment of -process Elements in a Simulated Milky Way-like Galaxy2410.11943v2 · Yutaka Hirai, Timothy C. Beers, Young Sun Lee et al.2024 · 5 citationsarXiv
All the Little Things in Abell 2744: $>$1000 Gravitationally Lensed Dwarf Galaxies at from JWST NIRCam Grism Spectroscopy2410.01874v1 · Rohan P. Naidu, Jorryt Matthee, Ivan Kramarenko et al.2024 · 6 citationsarXiv
The R-Process Alliance: Fifth Data Release from the Search for R-Process-Enhanced Metal-poor Stars in the Galactic Halo with the GTC2408.03731v3 · Avrajit Bandyopadhyay, Rana Ezzeddine, Carlos Allende Prieto et al.2024 · 26 citationsThe Astrophysical Journal Supplement , 2024, Volume 274, Number 2, Page 39
The R-Process Alliance: 2MASS J22132050-5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.452406.02691v1 · Ian U. Roederer, Timothy C. Beers, Kohei Hattori et al.2024 · 22 citationsarXiv
The oldest stars with low neutron-capture element abundances and origins in ancient dwarf galaxies2405.07856v1 · Hillary Diane Andales, Ananda Santos Figueiredo, Casey Gordon Fienberg et al.2024 · 7 citationsarXiv
The Rise of the -Process in the Gaia-Sausage/Enceladus Dwarf Galaxy2404.10067v1 · Xiaowei Ou, Alexander P. Ji, Anna Frebel et al.2024 · 19 citationsarXiv
The R-Process Alliance: Analysis of Limited-r Stars2404.03379v1 · T. Xylakis-Dornbusch, T. T. Hansen, T. C. Beers et al.2024 · 10 citationsarXiv
The black hole low mass X-ray binary V404 Cygni is part of a wide hierarchical triple, and formed without a kick2404.03719v1 · Kevin B. Burdge, Kareem El-Badry, Erin Kara et al.2024 · 1 citationarXiv
Signatures of tidal disruption of the Hercules ultra-faint dwarf galaxy2403.00921v1 · Xiaowei Ou, Anirudh Chiti, Nora Shipp et al.2024 · 14 citationsarXiv
A Strontium-rich Ultra Metal-poor Star in the Atari Disk Component2402.07046v1 · Mohammad K. Mardini, Anna Frebel, Anirudh Chiti2024 · 0 citationsarXiv
The -Process Alliance: Detailed Composition of an -Process Enhanced Star with UV and Optical Spectroscopy2401.12311v1 · Shivani P. Shah, Rana Ezzeddine, Ian U. Roederer et al.2024 · 0 citationsarXiv
Enrichment by Extragalactic First Stars in the Large Magellanic Cloud2401.11307v2 · Anirudh Chiti, Mohammad Mardini, Guilherme Limberg et al.2024 · 22 citationsarXiv
Element abundance patterns in stars indicate fission of nuclei heavier than uranium.38060658 · Roederer, Ian U, Vassh, Nicole, Holmbeck, Erika M et al.2023 · 50 citationsScience (New York, N.Y.). 2023;382(6675):1177-1180
Metal-poor stars observed with the Magellan Telescope. IV. Neutron-capture element signatures in 27 main-sequence stars2305.05363v1 · Mohammad K. Mardini, Anna Frebel, Leyatt Betre et al.2023 · 15 citationsarXiv
Evidence for multiple nucleosynthetic processes from carbon enhanced metal-poor stars in the Carina dwarf spheroidal galaxy2305.02316v1 · T. T. Hansen, J. D. Simon, T. S. Li et al.2023 · 17 citationsarXiv
The dark matter profile of the Milky Way inferred from its circular velocity curve2303.12838v2 · Xiaowei Ou, Anna-Christina Eilers, Lina Necib et al.2023 · 131 citationsarXiv
A Critique of the Spite Plateau, and the Astration of Primordial Lithium2303.11497v1 · J. E. Norris, D. Yong, A. Frebel et al.2023 · 16 citationsarXiv
Observations of R-Process Stars in the Milky Way and Dwarf Galaxies2302.09188v2 · Anna Frebel, Alexander P. Ji2023 · 9 citationsarXiv
Timing the r-Process Enrichment of the Ultra-Faint Dwarf Galaxy Reticulum II2212.00810v1 · Joshua D. Simon, Thomas M. Brown, Burcin Mutlu-Pakdil et al.2022 · 31 citationsarXiv
The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks2210.15105v1 · Ian U. Roederer, John J. Cowan, Marco Pignatari et al.2022 · 34 citationsAstrophysical Journal Vol. 936, p. 84 (2022)
HD 222925: a New Opportunity to Explore the Astrophysical and Nuclear Conditions of r-process Sites2210.10122v1 · Erika M. Holmbeck, Rebecca Surman, Ian U. Roederer et al.2022 · 6 citationsarXiv
Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement2209.02184v2 · Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel et al.2022 · 7 citationsarXiv
The R-Process Alliance: Chemo-Dynamically Tagged Groups II. An Extended Sample of Halo -Process-Enhanced Stars2208.09712v4 · Derek Shank, Timothy C. Beers, Vinicius M. Placco et al.2022 · 29 citationsarXiv
The chemical abundance pattern of the extremely metal-poor thin disk star 2MASS J1808-5104 and its origins2208.03891v1 · Mohammad K. Mardini, Anna Frebel, Rana Ezzeddine et al.2022 · 30 citationsarXiv
Robust Clustering of the Local Milky Way Stellar Kinematic Substructures with Gaia eDR32208.01056v1 · Xiaowei Ou, Lina Necib, Anna Frebel2022 · 12 citationsarXiv
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