Chiaki Kobayashi

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Publications (242)

• The mysterious case of iron in XMPs: anomalous high log(Fe/O) observed in extremely metal-poor galaxies HSCJ1631+4426 and SDSSJ0811+4730
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag1816
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• Confirming membership in Local Group galaxies with the Dark Energy Spectroscopic Instrument Data Release 1
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag1137
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• A Fleeting GLIMPSE of N/O Enrichment at Cosmic Dawn: Evidence for Wolf Rayet N Stars in a z = 6.1 Galaxy
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae5e4c
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• Mass-dependent chemical enrichment sequences of SDSS star-forming galaxies out to z ~ 0.3 revealed by direct O & Ar abundances
  Souradeep Bhattacharya, M. Arnaboldi, Chiaki Kobayashi +2 more
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag860
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• Supernova Dust Synthesis—Carbonaceous Dust in the Very Early Universe
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae5a9b
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• The origin of extreme N-emitters in star-forming galaxies at z < 0.5 with DESI DR1
  Souradeep Bhattacharya, Chiaki Kobayashi
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag545
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• JADES: the chemical enrichment pattern of distant galaxies – α enhancement, silicon depletion, and iron enhancement
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag123
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• SCATTER common envelope formalism for triples
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag192
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• Upper Limit on HF(1–0) Absorption in a Dusty Star-forming Galaxy at z = 6: Constraints on Early Fluorine Enrichment
  The Astrophysical Journal Letters 2026 DOI: 10.3847/2041-8213/ae36a2
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• The metal-poor tail of the APOGEE survey
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202558062
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• The impact of supernova feedback on metallicity-gradient evolution in cosmological simulations
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf1727
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• Potassium Abundances in Extremely Metal Poor Stars: Implications for Nucleosynthesis in the Final Stages of Massive Star Evolution∗
  The Astrophysical Journal 2025 DOI: 10.3847/1538-4357/ae00b8
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• ChemZz I: comparing oxygen and iron abundance patterns in the Milky Way, the Local Group, and Cosmic Noon
  Stephanie Monty, Allison L. Strom, T. M. Stanton

  +7 more

  • Martyna Chruślińska
  • Fergus Cullen
  • Chiaki Kobayashi
  • Tjitske Starkenburg
  • Souradeep Bhattacharya
  • +2 more
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf1213
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• The JWST EXCELS survey: direct estimates of C, N, and O abundances in two relatively metal-rich galaxies at z ≃ 5
  Karla Z. Arellano-Córdova, Fergus Cullen, Adam C. Carnall

  +14 more

  • D. Scholte
  • T. M. Stanton
  • Chiaki Kobayashi
  • Zorayda Martinez
  • Danielle A. Berg
  • +9 more
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf855
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• Chemical signature reveals co-spatial dwarf satellite of an edge-on disc galaxy with MUSE
  Devang Somawanshi, Souradeep Bhattacharya, Manish Kataria

  +2 more

  • Preetish K Mishra
  • Chiaki Kobayashi
  Monthly Notices of the Royal Astronomical Society: Letters 2025 DOI: 10.1093/mnrasl/slaf048
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• JADES: The star formation and chemical enrichment history of a luminous galaxy at z ∼ 9.43 probed by ultra-deep JWST/NIRSpec spectroscopy
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202451410
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• Unveiling Galaxy Chemical Enrichment Mechanisms Out to z ∼ 8 from Direct Determination of O and Ar Abundances from JWST/NIRSPEC Spectroscopy
  Souradeep Bhattacharya, M. Arnaboldi, Ortwin Gerhard +2 more
  The Astrophysical Journal Letters 2025 DOI: 10.3847/2041-8213/adc735
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• Fluorine abundances in CEMP stars at the lowest metallicity: hints on the nature of the first stars
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf464
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• The aluminium-26 distribution in a cosmological simulation of a Milky Way-type Galaxy
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202451915
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• Core to Cosmic Edge: SIMBA-C’s New Take on Abundance Profiles in the Intragroup Medium at z = 0
  Aviv Padawer-Blatt, Zhiwei Shao, Renier T. Hough +9 more
  Universe 2025 DOI: 10.3390/universe11020047
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