Physics
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.459..271b&link_type=abstract
In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor:
Physics
2
Radiation Transport, Radiation Mechanisms, Compton Scattering
Scientific paper
We suggest a simple fitting formula to represent Comptonized X- and γ-ray spectra from a hot (kTe >~ 10 keV), Thomson thick (τT >~ 5) hybrid thermal/nonthermal plasma. We have used this formula to fit a large data base of Monte-Carlo generated photon spectra, and provide correlations between the physical parameters of the plasma and the fit parameters of our analytic fit function. These allow us to construct Thomson thick Comptonization spectra without performing computer intensive Monte-Carlo simulations of the high-τ Comptonization problem. Our formulae can easily be used in data analysis packages such as XSPEC, thus rendering rapid Χ2 fitting of such spectra to real data feasible.
Böttcher Markus
Crider Anthony Wayne
Liang Edison P.
Saxena Renu
Smith Ian A.
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