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NOTE: This model is now in the Xspec release and this page is superceded by the Xspec manualThis GRBCOMP model has been proposed by Titarchuk et al.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
function. 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 HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details. |