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 well.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- October 2013
- DOI:
- 10.1093/mnras/stt1259
- arXiv:
- arXiv:1307.2650
- Bibcode:
- 2013MNRAS.434.3463Z
- Keywords:
-
- radiation mechanisms: non-thermal;
- X-rays: general;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 6 pages, 2 figures, accepted for publication in MNRAS