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researcher

K. Watarai

17 papers hereh-index 14931 citations33 works total

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

author position
  • sole author2
  • first author6
  • middle author3
  • last author5

Across the 16 of 17 papers where every author was matched, so the position is known.

fields
  • astro-ph13
  • astro-ph.HE4

identity via Semantic Scholar / OpenAlex

activity
20002026
most citedSlim Disk Model for Ultra-Luminous X-Ray Sources

184 citations · 789 across the 16 of their papers we have counts for

collaborators
Showing 2009Show all

2 papers · 1 filter

astro-ph.HE2009

Relativistic Spectra of Hot Black-Hole Winds

Naoko Sumitomo, Hideki Saito, Jun Fukue +1

We examine hybrid thermal-nonthermal synchrotron spectra from a spherically symmetric, optically-thin wind, taking into account the relativistic effect. In the relativistic flow fr…

astro-ph.HE2009★ 23 cited

Observational Appearance of Relativistic, Spherically Symmetric Massive Winds

N. Sumitomo, S. Nishiyama, C. Akizuki +2

The photon mean free path in a relativistically moving medium becomes long in the down-stream direction while short in the up-stream direction. As a result, the observed optical de…

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