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researcher

R. Usui

15 papers hereh-index 12873 citations130 works total

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

author position
  • first author1
  • middle author11

Across the 12 of 15 papers where every author was matched, so the position is known.

fields
  • astro-ph.HE15
same name
  • R. Usui — 1 paper, h 1

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
20112016
most citedDiscovery of the Onset of Rapid Accretion by a Dormant Massive Black Hole

583 citations · 898 across the 15 of their papers we have counts for

collaborators
Showing 2012Show all

1 paper · 1 filter

astro-ph.HE2012★ 20 cited

Outburst of LS V+44 17 Observed by MAXI and RXTE, and Discovery of a Dip Structure in the Pulse Profile

Ryuichi Usui, Mikio Morii, Nobuyuki Kawai +28

We report on the first observation of an X-ray outburst of a Be/X-ray binary pulsar LS V +44 17/RX J0440.9+4431, and the discovery of an absorption dip structure in the pulse profi…

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