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researcher

K. Hayashi

42 papers hereh-index 201.2k citations84 works total

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

author position
  • sole author2
  • first author13
  • middle author20
  • last author7

Across the 42 of 42 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA25
  • astro-ph.CO11
  • physics.ins-det3
  • math.PR2
  • astro-ph.HE1
same name
  • K. Hayashi — 35 papers, h 32
  • K. Hayashi — 34 papers, h 13
  • K. Hayashi — 15 papers, h 6
  • K. Hayashi — 9 papers, h 18
  • K. Hayashi — 9 papers, h 5
  • K. Hayashi — 7 papers, h 7

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

activity
20122024
most citedEMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-Poor Galaxies: A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension

104 citations · 1.1k across the 42 of their papers we have counts for

collaborators
Showing 2016Show all

3 papers · 1 filter

astro-ph.CO2016★ 31 cited

Impact of axisymmetric mass models for dwarf spheroidal galaxies on indirect dark matter searches

Niki Klop, Fabio Zandanel, Kohei Hayashi +1

Dwarf spheroidals are low-luminosity satellite galaxies of the Milky Way highly dominated by dark matter (DM). Therefore, they are prime targets to search for signals from dark mat…

astro-ph.GA2016★ 19 cited

Foreground effect on the J-factor estimation of classical dwarf spheroidal galaxies

Koji Ichikawa, Miho N. Ishigaki, Shigeki Matsumoto +4

The gamma-ray observation of the dwarf spheroidal galaxies (dSphs) is a promising approach to search for the dark matter annihilation (or decay) signal. The dSphs are the nearby sa…

astro-ph.GA2016★ 98 cited

Dark matter annihilation and decay from non-spherical dark halos in the Galactic dwarf satellites

Kohei Hayashi, Koji Ichikawa, Shigeki Matsumoto +3

The dwarf spheroidal galaxies (dSphs) in the Milky Way are the primary targets in the indirect searches for particle dark matter. To set robust constraints on candidate of dark mat…

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