2013/07/10 by Yuan-Chuan Zou, Y. C. Zou, F. Y. Wang +1
Physics and Astronomy · #Amplitude #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Atomic physics #Emission spectrum #Envelope (radar) #Gamma-ray bursts and supernovae #Light curve #Optics #Physics #Pulsars and Gravitational Waves Research #Pulse (music) #Shock (circulatory) #Spectral line #Swift #astro-ph.HE
paper · pdf · doi:10.1093/mnras/stt1259
6 pages, 2 figures, accepted for publication in MNRAS
arxiv created 2013/07/10 · openalex publication_date 2013/08/14 · arxiv updated 2015/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.