Two-phase Comptonization model of soft thermal seed photons for GRB prompt emission.
NOTE: This model is now in the Xspec release and this page is superceded by the Xspec manual
This GRBCOMP model has been proposed by Titarchuk et al. (2012, ApJ, 752, 116) as a possible scenario for the spectral emission of the prompt phase of Gamma Ray Bursts.
It is essentially a two-phase model: up to the peak energy Ep
of the EF(E) spectrum soft thermal blackbody-like photons are
comptonized by a subrelativistic bulk outflow of thermal electrons,
while the high-energy tail is obtained by a further convolution
of the formerly comptonized spectrum with a Green's
Keith Arnaud, Lab. for High Energy Astrophysics, NASA/Goddard Space Flight Center
HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public
Last modified: Tuesday, 14-Feb-2023 16:41:50 EST
The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.