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JINA - Segue Virtual Journal, 27 June 2025

Volume 20, Issue 18 (18 Articles)

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• # 1 - A Bimodal Metallicity Distribution Function in the Ultra-Faint Dwarf Galaxy Reticulum II
  • Alice M. Luna, Alexander P. Ji, Anirudh Chiti, Joshua D. Simon, Daniel D. Kelson, Minsung Go, Guilherme Limberg, Ting S. Li, Anna Frebel
  • https://arxiv.org/abs/2506.16462
• # 2 - Current Galactic Chemical Evolution models fail to explain rising Na-abundances of young thick disc stars
  • E. K. Owusu (School of Science, University of New South Wales Canberra, Australia Defence Force Academy, Australia, ARC Centre of Excellence for All-Sky Astrophysics in 3 Dimensions, Max-Planck-Institut f"ur Astronomie, Heidelberg, Germany, Heidelberger Institut f"ur Theoretische Studien, Heidelberg, Germany), A. J. Ruiter (School of Science, University of New South Wales Canberra, Australia Defence Force Academy, Australia, ARC Centre of Excellence for All-Sky Astrophysics in 3 Dimensions, Max-Planck-Institut f"ur Astronomie, Heidelberg, Germany, Heidelberger Institut f"ur Theoretische Studien, Heidelberg, Germany, OzGrav: The ARC Centre of Excellence for Gravitational Wave Discovery, Hawthorn, Australia), A. J. Kemp (Institute of Astronomy), S. Buder (ARC Centre of Excellence for All-Sky Astrophysics in 3 Dimensions, Research School of Astronomy, Astrophysics, Australian National University, Australia), I. R. Seitenzahl (Heidelberger Institut f"ur Theoretische Studien, Heidelberg, Germany), N. Rodriguez-Segovia (School of Science, University of New South Wales Canberra, Australia Defence Force Academy, Australia), R. Pakmor (Max Planck Institute for Astrophysics, Garching, Germany), G. C. Cinquegrana (ARC Centre of Excellence for All-Sky Astrophysics in 3 Dimensions, School of Physics, Astronomy, Monash University, Clayton, Australia), N. Storm (Max-Planck-Institut f"ur Astronomie, Heidelberg, Germany, Heidelberg University, Heidelberg, Germany), P. Eitner (Max-Planck-Institut f"ur Astronomie, Heidelberg, Germany, Heidelberg University, Heidelberg, Germany), M. Bergemann (Max-Planck-Institut f"ur Astronomie, Heidelberg, Germany)
  • https://arxiv.org/abs/2506.17711
• # 3 - Detailed Chemical Abundance Analysis of Metal-Poor Turn-Off Stars: One with [Fe/H] < -4 and Three with [Fe/H] < -4
  • Takuma Suda, Patrick Francois, Shinya Wanajo, Elisabetta Caffau, Wako Aoki, Piercarlo Bonifacio
  • https://arxiv.org/abs/2506.18286
• # 4 - Element nucleosynthetic origins from abundance spatial distributions beyond the Milky Way
  • Zefeng Li, Mark R. Krumholz, Anna F. McLeod, A. Mark Swinbank, Emily Wisnioski, J. Trevor Mendel, Francesco Belfiore, Giovanni Cresci, Giacomo Venturi, Jialai Kang
  • https://arxiv.org/abs/2506.21365
• # 5 - Estimating Fe and Mg Abundances in the Milky Way Dwarf Galaxies Using Subaru/HSC and DEIMOS
  • Jihye Hong, Evan N. Kirby, Tiffany M. Tang, Masashi Chiba, Yutaka Komiyama, Lauren E. Henderson, Itsuki Ogami, Timothy C. Beers
  • https://arxiv.org/abs/2506.15952
• # 6 - Leo I: the classical dwarf spheroidal galaxy with the highest dark-matter density
  • R. Pascale, C. Nipoti, F. Calura, A. Della Croce
  • https://arxiv.org/abs/2506.13847
• # 7 - Metal-polluted PopIII galaxies and How to Find Them
  • Elka Rusta, Stefania Salvadori, Viola Gelli, Daniel Schaerer, Alessandro Marconi, Ioanna Koutsouridou, Stefano Carniani
  • https://arxiv.org/abs/2506.17400
• # 8 - Metallicities from High-Resolution TRES Spectra with The Payne and uberMS: Performance Benchmarks and Literature Comparison
  • Emily K. Pass, Phillip A. Cargile, Victoria DiTomasso, Romy Rodr&#039;iguez Mart&#039;inez, David Charbonneau, David W. Latham, Andrew Vanderburg, Allyson Bieryla, Samuel N. Quinn, Lars A. Buchhave
  • https://arxiv.org/abs/2506.18961
• # 9 - Searching for stars ejected from the Galactic Centre in DESI
  • Sill Verberne, Sergey E. Koposov, Elena Maria Rossi, Zephyr Penoyre
  • https://arxiv.org/abs/2506.19570
• # 10 - The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-Poor Stars in the Distant Milky Way Halo
  • Vinicius M. Placco, Guilherme Limberg, Anirudh Chiti, Deepthi S. Prabhu, Alexander P. Ji, Fabr&#039;icia O. Barbosa, William Cerny, Andrew B. Pace, Guy S. Stringfellow, David J. Sand, Clara E. Mart&#039;inez-V&#039;azquez, Alexander H. Riley, Silvia Rossi, Noelia E. D. No&quot;el, A. Katherina Vivas, Gustavo E. Medina, Alex Drlica-Wagner, Joanna D. Sakowska, Burc{c}in Mutlu-Pakdil, Pol Massana, Julio A. Carballo-Bello, Yumi Choi, Denija Crnojevi&#039;c, Chin Yi Tan
  • https://arxiv.org/abs/2506.19163
• # 11 - The Importance of the Population III Initial Mass Function in Determining the Characteristics of the Earliest Galaxies
  • Richard Sarmento, Evan Scannapieco
  • https://arxiv.org/abs/2506.20767
• # 12 - The Absolute Age of Milky Way Globular Clusters
  • Jiaqi (Martin) Ying, Brian Chaboyer, Michael Boylan-Kolchin, Daniel R. Weisz, Rowan Goebel-Bain
  • The Astrophysical Journal
  • https://doi.org/10.3847/1538-4357/add471
• # 13 - The Impact of Initial Composition on Massive Star Evolution and Nucleosynthesis
  • Christopher West, Alexander Heger, Benoit Côté, Lev Serxner, Haoxuan Sun
  • The Astrophysical Journal
  • https://doi.org/10.3847/1538-4357/add68f
• # 14 - Unveiling a Young Thick Disk in the Milky Way
  • Jianhui Lian, Min Du, Shuai Lu, Bingqiu Chen, Gail Zasowski, Zhaoyu Li, Xiaojie Liao, Chao Liu
  • The Astrophysical Journal Letters
  • https://doi.org/10.3847/2041-8213/adccb7
• # 15 - Barium Abundances from the LAMOST Medium-Resolution Survey Stellar Spectra
  • Tian-Yi Chen, Jian-Rong Shi, Hong-Liang Yan, Timothy C. Beers, Chun-Qian Li, Ming-Yi Ding, Xiao-Jin Xie, Liu Shuai, Zeming Zhou, Yao-Jia Tang
  • The Astrophysical Journal Supplement
  • https://doi.org/10.3847/1538-4365/adc5e6
• # 16 - Photometric Metallicity and Distance Estimates for ∼70,000 RR Lyrae Stars from the Zwicky Transient Facility
  • Shun-Xuan He, Yang Huang, Xin-Yi Li, Hua-Wei Zhang, Gao-Chao Liu, Timothy C. Beers, Hong Wu, Zhou Fan
  • The Astrophysical Journal Supplement
  • https://doi.org/10.3847/1538-4365/adbcad
• # 17 - Identification of Blue Horizontal-branch Stars Using Synthetic SkyMapper Colors from Gaia XP Spectra
  • Guozhen Hu, Yang Huang, Wenyuan Cui, Tao Wang, Kai Xiao, Ruifeng Shi, Jie Ju, Bowen Huang, Chunyan Li, Zhicun Liu
  • The Astrophysical Journal Supplement
  • https://doi.org/10.3847/1538-4365/add5f8
• # 18 - Metallicities of 20 Million Giant Stars Based on Gaia XP Spectra
  • Lin Yang, Haibo Yuan, Bowen Huang, Ruoyi Zhang, Timothy C. Beers, Kai Xiao, Shuai Xu, Yang Huang, Maosheng Xiang, Meng Zhang
  • The Astrophysical Journal Supplement
  • https://doi.org/10.3847/1538-4365/add5e3