103 citations · 603 across the 39 of their papers we have counts for
5 papers · 1 filter
The Disk Wind Contribution to the Gamma-Ray emission from the nearby Seyfert Galaxy GRS 1734-292
Nobuyuki Sakai, Tomoya Yamada, Yoshiyuki Inoue +4
Radio-quiet Seyfert galaxies have been detected in GeV gamma-rays by the Large Area Telescope (LAT), but the origin of much of this emission is unclear. We consider the nea…
Deciphering Radio Emissions from Accretion Disk Winds in Radio-Quiet Active Galactic Nuclei
Tomoya Yamada, Nobuyuki Sakai, Yoshiyuki Inoue +1
Unraveling the origins of radio emissions from radio-quiet active galactic nuclei (RQ AGNs) remains a pivotal challenge in astrophysics. One potential source of this radiation is t…
Resurrection of type IIL supernova 2018ivc: Implications for a binary evolution sequence connecting hydrogen-rich and -poor progenitors
Keiichi Maeda, Tomonari Michiyama, Poonam Chandra +4
Long-term observations of synchrotron emission from supernovae (SNe), covering more than a year after the explosion, provide a unique opportunity to study the poorly-understood evo…
A Multi-Wavelength View on the Rapidly-Evolving Supernova 2018ivc: An Analog of SN IIb 1993J but Powered Primarily by Circumstellar Interaction
Keiichi Maeda, Poonam Chandra, Takashi J. Moriya +15
SN 2018ivc is an unusual type II supernova (SN II). It is a variant of SNe IIL, which might represent a transitional case between SNe IIP with a massive H-rich envelope, and IIb wi…
Hunting for wandering massive black holes
Minghao Guo, Kohei Inayoshi, Tomonari Michiyama +1
We investigate low-density accretion flows onto massive black holes (BHs) with masses of orbiting around in the outskirts of their host galaxies, performing…