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S. Koyama

2 papers hereh-index 7219 citations34 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author2

Across the 2 of 2 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA2
same name
  • S. Koyama — 70 papers, h 31
  • S. Koyama — 27 papers, h 23
  • S. Koyama — 14 papers, h 13
  • S. Koyama — 10 papers, h 9
  • S. Koyama — 9 papers, h 14
  • S. Koyama — 9 papers, h 4

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

most citedEMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely-Metal Poor Galaxies

8 citations · 8 across the 1 of their papers we have counts for

collaborators

2 papers

astro-ph.GA2023★ 8 cited

EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely-Metal Poor Galaxies

Yi Xu, Masami Ouchi, Yuki Isobe +49

We present demography of the dynamics and gas-mass fraction of 33 extremely metal-poor galaxies (EMPGs) with metallicities of 0.015−0.195 Z⊙​ and low stellar masses of $10^4-…

astro-ph.GA2019

Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 ≤ z ≤ 7.0

Yoshiki Matsuoka, Kazushi Iwasawa, Masafusa Onoue +44

We report the discovery of 28 quasars and 7 luminous galaxies at 5.7 ≤ z ≤ 7.0. This is the tenth in a series of papers from the Subaru High-z Exploration of Low-Luminosity…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.