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…
Nonuniform Particle Injection into Black Hole Jets by Radiative Magnetic Reconnection
Rin Oikawa, Kenji Toma, Shigeo S. Kimura
Active galactic nuclei often exhibit highly collimated relativistic plasma outflows launched from the vicinity of their central black holes. One of the key theoretical challenges i…
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…