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JINA - Segue Virtual Journal, 15 August 2025

Volume 20, Issue 25 (15 Articles)

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• # 1 - Excavating The Ruins: an Ancient $z=2.675$ Galaxy Which Formed in the First 500 Myr
  • Ian McConachie, Jacqueline Antwi-Danso, Wenjun Chang, M. C. Cooper, Adit Edward, Ben Forrest, Percy Gomez, Han Lei, Zach J. Lewis, Danilo Marchesini, Michael V. Maseda, Adam Muzzin, Allison Noble, Stephanie M. Urbano Stawinski, Tracy Webb, Gillian Wilson, M. E. Wisz
  • https://arxiv.org/abs/2508.05752
• # 2 - Investigating the origin of the Milky Way streams. A revised look at their orbital pole distribution in light of precession effects
  • Elena Asencio, Pavel Kroupa, Ingo Thies
  • https://arxiv.org/abs/2508.05733
• # 3 - Mergers Fall Short: Non-merger Channels Required for Galactic Heavy Element Production
  • Muhammed Saleem, Hsin-Yu Chen, Daniel M. Siegel, Philippe Landry, Jocelyn S. Read, Kaile Wang
  • https://arxiv.org/abs/2508.06020
• # 4 - Milky Way's Metal-Poor Stars display Chemical Transition near the Solar Radius
  • Khyati Malhan
  • https://arxiv.org/abs/2508.08360
• # 5 - On the Origin of Neutron-capture Elements in r-I and r-II Stars: A Differential-abundance Analysis
  • Pallavi Saraf, Thirupathi Sivarani, Timothy C. Beers, Yutaka Hirai, Masaomi Tanaka, Carlos Allende Prieto, Drisya Karinkuzhi
  • https://arxiv.org/abs/2508.08847
• # 6 - An Advanced Deep Learning Model for Identifying Blue Horizontal-branch Stars from LAMOST DR10
  • Yuhang Zhang, Yude Bu, Jiangchuan Zhang, Ke Wang, Huili Wu, Mengmeng Zhang, Shanshan Li, Jingzhen Sun, Xiaoming Kong, Zhenping Yi
  • Astronomical Journal
  • https://doi.org/10.3847/1538-3881/adea95
• # 7 - JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge
  • L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser
  • Astronomische Nachrichten - Volume: 0, Issue: 0
  • https://onlinelibrary.wiley.com/doi/10.1002/asna.70042?af=R
• # 8 - Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE
  • B. Barbuy, H. Ernandes, A. C. S. Friaça, M. S. Camargo, P. da Silva, S. O. Souza, T. Masseron, M. Brauner, D. A. García-Hernández, J. G. Fernández-Trincado, K. Cunha, V. V. Smith, A. Pérez-Villegas, C. Chiappini, A. B. A. Queiroz, B. X. Santiago, T. C. Beers, F. Anders, R. P. Schiavon, M. Valentini, D. Minniti, D. Geisler, D. Souto, V. M. Placco, M. Zoccali, S. Feltzing, M. Schultheis, C. Nitschelm
  • Astronomy & Astrophysics
  • https://www.aanda.org/10.1051/0004-6361/202555713
• # 9 - Rediscovering the Milky Way with an orbit superposition approach and APOGEE data
  • Sergey Khoperskov, Matthias Steinmetz, Misha Haywood, Glenn van de Ven, Davor Krajnović, Bridget Ratcliffe, Ivan Minchev, Paola Di Matteo, Nikolay Kacharov, Léa Marques, Marica Valentini, Roelof S. de Jong
  • Astronomy & Astrophysics
  • https://www.aanda.org/10.1051/0004-6361/202453305
• # 10 - Measuring and modelling the Splash with APOGEE/Gaia and ARTEMIS
  • Monthly Notices of the Royal Astronomical Society - Volume: 542, Issue: 1
  • https://academic.oup.com/mnras/article/542/1/76/8223408?rss=1
• # 11 - Brazilian PhD students opt out of US research opportunities
  • Meghie Rodrigues
  • Nature
  • https://www.nature.com/articles/d41586-025-02486-x
• # 12 - Trump order gives political appointees vast powers over research grants
  • Dan Garisto
  • Nature
  • https://www.nature.com/articles/d41586-025-02557-z
• # 13 - Additional Evidence for the Existence of a Primordial Disk System
  • Shuai Xu, Haibo Yuan, Bowen Huang, Timothy C. Beers, Yang Huang, Maosheng Xiang, Kai Xiao, Jihye Hong, Young Sun Lee, Wuming Yang
  • The Astrophysical Journal
  • https://doi.org/10.3847/1538-4357/adf193
• # 14 - Precise Asteroseismic Ages for the Helmi Streams
  • Christopher J. Lindsay, Marc Hon, J. M. Joel Ong, Rafael A. García, Dinil B. Palakkatharappil, Jie Yu, Tanda Li, Tomás Ruiz-Lara, Amina Helmi
  • The Astrophysical Journal
  • https://doi.org/10.3847/1538-4357/adeb56
• # 15 - Discovery of an [Fe/H] ∼ −4.8 Star in Gaia XP Spectra
  • Guilherme Limberg, Vinicius M. Placco, Alexander P. Ji, Yupeng Yao, Anirudh Chiti, Mohammad K. Mardini, Anna Frebel, Silvia Rossi
  • The Astrophysical Journal Letters
  • https://doi.org/10.3847/2041-8213/adf196