4 papers
Prompt Jet Launching and Delayed Thermal Disk in Tidal Disruption Event for Prolonged Activity GRB 220706A
Yuri Sato, Rin Oikawa
GRB 220706A exhibits X-ray flaring activity extending to ~51 days after the trigger, along with a luminous optical thermal component emerging on a timescale of ~10^6 s. Such prolon…
Reconnection-Driven Plasma Loading for Prompt Emission in Tidal Disruption Event Jets
Rin Oikawa, Yuri Sato
A tidal disruption event (TDE) occurs when a star passes sufficiently close to a black hole (BH) to be disrupted by its tidal forces. Although several hundred TDEs have been identi…
Successive Partial Disruptions with Orbital Precession in a White Dwarf-Black Hole System for Repeating GRB 250702B
Yuri Sato, Rin Oikawa, Kazuma Kato +2
The peculiar gamma-ray burst GRB 250702B is the longest event ever observed, lasting about one day and exhibiting four prompt-emission flares of s with irregular recurren…
Searching for the Signature of Fast Radio Burst by Swift/XRT X-ray Afterglow Light Curve
Hsien-chieh Shen, Takanori Sakamoto, Motoko Serino +1
A new type of cosmological transient, dubbed fast radio bursts (FRBs), was recently discovered. The source of FRBs is still unknown. One possible scenario of an FRB is the collapse…