54 citations · 147 across the 14 of their papers we have counts for
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Interpreting the diversity of afterglow emission from radio-detected tidal disruption events with instantaneous and delayed outflows
Yuri Sato, Mukul Bhattacharya, Jose Carpio +2
Tidal disruption events (TDEs) occur when a star is gravitationally disrupted by the tidal field of a supermassive black hole during a close encounter. Radio emission has recently…
EP240414a: A Gamma-Ray Burst Jet Weakened by an Extended Circumstellar Material
Hamid Hamidani, Yuri Sato, Kazumi Kashiyama +3
The recent Einstein Probe (EP) event EP240414a exhibits several unusual observational features. Its prompt and afterglow emissions place it between long gamma-ray bursts (LGRBs) an…
Two-component jet model for the afterglow emission of GRB 201216C and GRB 221009A and implications for jet structure of very-high-energy gamma-ray bursts
Yuri Sato, Kohta Murase, Yutaka Ohira +2
In recent years, afterglow emission in the very-high-energy (VHE) band above 100 GeV has been clearly detected for at least five gamma-ray bursts (GRBs 180720B, 190114C, 190829A, 2…
Two-component off-axis jet model for radio flares of tidal disruption events
Yuri Sato, Kohta Murase, Mukul Bhattacharya +3
Recently, radio emission from tidal disruption events (TDEs) has been observed from months to years after the optical discovery. Some of the TDEs including ASASSN-14ae, ASASSN-15oi…
Detection of the 2021 Outburst of RS Ophiuchi with the LST-1
Yukiho Kobayashi, Arnau Aguasca-Cabot, María Isabel Bernardos Martín +2
Novae are luminous explosions in close binaries which host a white dwarf and a companion donor star. They are triggered by a thermonuclear runaway when the white dwarf accretes a c…
GRB 080710: A narrow, structured jet showing a late, achromatic peak in the optical and infrared afterglow?
Kaori Obayashi, Ayumu Toriyama, Mayu Murakoshi +4
We present a possible theoretical interpretation of the observed afterglow emission of long gamma-ray burst GRB 080710. While its prompt GRB emission properties are normal, the aft…
Performance of the Large-Sized Telescope prototype of the Cherenkov Telescope Array
Daniel Morcuende, Rubén López-Coto, Abelardo Moralejo +2
The next-generation ground-based gamma-ray Cherenkov Telescope Array Observatory (CTAO) will consist of imaging atmospheric Cherenkov telescopes (IACTs) of three different sizes di…
LST-1 observations of an enormous flare of BL Lacertae in 2021
Seiya Nozaki, Katsuaki Asano, Juan Escudero +2
The first prototype of LST (LST-1) for the Cherenkov Telescope Array has been in commissioning phase since 2018 and already started scientific observations with the low energy thre…
Two-component jet model for multiwavelength afterglow emission of the extremely energetic burst GRB 221009A
Yuri Sato, Kohta Murase, Yutaka Ohira +1
Recently gamma-ray bursts (GRBs) have been detected at very high-energy (VHE) gamma-rays by imaging atmospheric Cherenkov telescopes, and a two-component jet model has often been i…
Synchrotron Self-Compton Emission in the Two-Component Jet Model for Gamma-Ray Bursts
Yuri Sato, Kaori Obayashi, B. Theodre Zhang +4
Gamma-ray bursts (GRBs) are intense bursts of high-energy photons (prompt emissions) caused by relativistic jets. After the emissions, multi-wavelength afterglows, from radio to ve…
Off-axis jet scenario for early afterglow emission of low-luminosity gamma-ray burst GRB 190829A
Yuri Sato, Kaori Obayashi, Ryo Yamazaki +2
Recently, ground-based Imaging Atmospheric Cherenkov Telescopes have reported the detection of very-high-energy (VHE) gamma-rays from some gamma-ray bursts (GRBs). One of them, GRB…
Less noticeable shallow decay phase in early X-ray afterglows of GeV/TeV-detected gamma-ray bursts
Ryo Yamazaki, Yuri Sato, Takanori Sakamoto +1
The nature of the shallow decay phase in the X-ray afterglow of the gamma-ray burst (GRB) is not yet clarified. We analyze the data of early X-ray afterglows of 26 GRBs triggered b…