90 citations · 117 across the 3 of their papers we have counts for
3 papers
astro-ph.HE2013★ 14 cited
Rapid Spectral Changes of Cygnus X-1 in the Low/Hard State with Suzaku
S. Yamada, H. Negoro, S. Torii +3
Rapid spectral changes in the hard X-ray on a time scale down to ~0.1 s are studied by applying "shot analysis" technique to the Suzaku observations of the black hole binary Cygnus…
astro-ph.HE2013★ 13 cited
Highly Ionized Fe-K Absorption Line from Cygnus X-1 in the High/Soft State Observed with Suzaku
S. Yamada, S. Torii, S. Mineshige +7
We present observations of a transient He-like Fe K alpha absorption line in Suzaku observations of the black hole binary Cygnus X-1 on 2011 October 5 near superior conjunction dur…
physics.geo-ph2009★ 90 cited
Observation of an energetic radiation burst from mountain-top thunderclouds
H. Tsuchiya, T. Enoto, T. Torii +9
During thunderstorms on 2008 September 20, a simultaneous detection of gamma rays and electrons was made at a mountain observatory in Japan located 2770 m above sea level. Both emi…