activity
20122015
most citedCan direct collapse black holes launch gamma-ray bursts and grow to supermassive black holes?

41 citations · 71 across the 3 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2015★ 22 cited

Jet-powered supernovae of population III stars are observable by , , , and

Tatsuya Matsumoto, Daisuke Nakauchi, Kunihito Ioka +1

Supermassive black holes observed at high redshift could grow from direct collapse black holes (DCBHs) with mass , which result from the collapse o…

astro-ph.HE2015★ 41 cited

Can direct collapse black holes launch gamma-ray bursts and grow to supermassive black holes?

Tatsuya Matsumoto, Daisuke Nakauchi, Kunihito Ioka +2

The existence of black holes (BHs) of mass ~ 10^{9} M_sun at z > 6 is a big puzzle in astrophysics because even optimistic estimates of the accretion time are insufficient for stel…

astro-ph.HE2014★ 8 cited

Optical Synchrotron Precursors of Radio Hypernovae

Daisuke Nakauchi, Kazumi Kashiyama, Hiroki Nagakura +2

We examine the bright radio synchrotron counterparts of low-luminosity gamma-ray bursts (llGRBs) and relativistic supernovae (SNe) and find that they can be powered by spherical hy…

astro-ph.HE2014

Possible Indirect Confirmation of the Existence of Pop III Massive Stars by Gravitational Wave

Tomoya Kinugawa, Kohei Inayoshi, Kenta Hotokezaka +2

We perform population synthesis simulations for Population III (Pop III) coalescing binary neutron stars (NS-NSs), neutron star - black hole binaries (NS-BHs), and binary black hol…

astro-ph.HE2013

Soft X-ray Extended Emissions of Short Gamma-Ray Bursts as Electromagnetic Counterparts of Compact Binary Mergers; Possible Origin and Detectability

Takashi Nakamura, Kazumi Kashiyama, Daisuke Nakauchi +3

We investigate the possible origin of extended emissions (EEs) of short gamma-ray bursts with an isotropic energy of ~ 10^(50-51) erg and a duration of a few 10 s to ~ 100 s, based…

astro-ph.HE2013

Blue Supergiant Model for Ultra-Long Gamma-Ray Burst with Superluminous-Supernova-Like Bump

Daisuke Nakauchi, Kazumi Kashiyama, Yudai Suwa +1

Long GRBs (LGRBs) have typical duration of ~ 30 s and some of them are associated with hypernovae, like Type Ic SN 1998bw. Wolf-Rayet stars are the most plausible LGRB progenitors,…