Long-term X-ray emission from Swift J1644+57

Abstract

The X-ray emission from Swift J1644+57 is not steadily decreasing instead it shows multiple pulses with declining amplitudes. We model the pulses as reverse shocks from collisions between the late ejected shells and the externally shocked material, which is decelerated while sweeping the ambient medium. The peak of each pulse is taken as the maximum emission of each reverse shock. With a proper set of parameters, the envelope of peaks in the light curve as well as the spectrum can be modelled nicely.

6 pages, 2 figures, accepted for publication in MNRAS

References in corpus (7)

• Radio Monitoring of the Tidal Disruption Event Swift J164449.3+573451. II. The Relativistic Jet Shuts Off and a Transition to Forward Shock X-ray/Radio Emission
• Blazar Gamma-Rays, Shock Acceleration, and the Extragalactic Background Light
• A 200-s Quasi-Periodicity Following the Tidal Disruption of a Star by a Dormant Black Hole
• Frame-dragging, disk warping, jet precessing, and dipped X-ray lightcurve of Sw J1644+57
• Challenging GRB models through the broadband dataset of GRB060908
• Transient X-ray Emission from Normal Galactic Nuclei
• SWIFT J164449.3+573451: a plunging event with the Poynting-flux dominated outflow

Cited by in corpus (6)

• A Complete Reference of the Analytical Synchrotron External Shock Models of Gamma-Ray Bursts
• Quasi-Periodic Variations in X-ray Emission and Long-Term Radio Observations: Evidence for a Two-Component Jet in Sw J1644+57
• Delayed Energy Injection Model For Gamma-Ray Burst Afterglows
• The origin of the plateau and late rebrightening in the afterglow of GRB 120326A
• Reverse Shock Emission in Gamma-ray Bursts Revisited
• Revisiting X-ray Afterglows of Jetted Tidal Disruption Events with the External Reverse Shock