activity
20092024
most citedA nearby long gamma-ray burst from a merger of compact objects

284 citations · 1.8k across the 43 of their papers we have counts for

collaborators

43 papers

astro-ph.GA2024★ 3 cited

Processing of hydrocarbon dust in star-forming galaxies revealed with AKARI

Tsubasa Kondo, Akino Kondo, Katsuhiro L. Murata +5

Hydrocarbon dust is one of the dominant components of interstellar dust, which mainly consists of polycyclic aromatic hydrocarbons and aliphatic hydrocarbons. While hydrocarbon dus…

astro-ph.HE2023★ 3 cited

Optical and X-ray variations during 5 outbursts of Aql X-1 in 3.6 years from 2016

Masafumi Niwano, Katsuhiro L. Murata, Naohiro Ito +2

We analyzed optical/X-ray quasi-simultaneous light curves of Aql X-1, obtained by MAXI (Monitor of All-sky X-ray Image), ZTF (Zwicky Transient Facility) and LCO (Las Cumbres Observ…

astro-ph.IM2023★ 6 cited

Multicolor and multi-spot observations of Starlink's Visorsat

Takashi Horiuchi, Hidekazu Hanayama, Masatoshi Ohishi +25

This study provides the results of simultaneous multicolor observations for the first Visorsat (STARLINK-1436) and the ordinary Starlink satellite, STARLINK-1113 in the , , $…

astro-ph.HE2022★ 284 cited

A nearby long gamma-ray burst from a merger of compact objects

E. Troja, C. L. Fryer, B. O'Connor +21

Gamma-ray bursts (GRBs) are flashes of high-energy radiation arising from energetic cosmic explosions. Bursts of long (>2 s) duration are produced by the core-collapse of massive s…

astro-ph.SR2022★ 40 cited

Discovery of a Long-Duration Superflare on a Young Solar-Type Star EK Draconis with Nearly Similar Time Evolution for H and White-Light Emissions

Kosuke Namekata, Hiroyuki Maehara, Satoshi Honda +17

Young solar-type stars are known to show frequent "superflares", which may severely influence the habitable worlds on young planets via intense radiations and coronal mass ejection…

astro-ph.SR2021★ 144 cited

Probable detection of an eruptive filament from a superflare on a solar-type star

Kosuke Namekata, Hiroyuki Maehara, Satoshi Honda +20

Solar flares are often accompanied by filament/prominence eruptions ( K and cm), sometimes leading to coronal mass ejections (CMEs) that direct…