A1 Refereed original research article in a scientific journal

Spectral and temporal properties of Compton scattering by mildly relativistic thermal electrons




AuthorsZdziarski AA, Szanecki M, Poutanen J, Gierlinski M, Biernacki P

PublisherOXFORD UNIV PRESS

Publication year2020

JournalMonthly Notices of the Royal Astronomical Society

Journal name in sourceMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

Journal acronymMON NOT R ASTRON SOC

Volume492

Issue4

First page 5234

Last page5246

Number of pages13

ISSN0035-8711

eISSN1365-2966

DOIhttps://doi.org/10.1093/mnras/staa159

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/46520039


Abstract
We have obtained new solutions and methods for the process of thermal. Comptonization, We modify the solution to the kinetic equation of Sunyaev and Titarchuk to allow its application up to mildly relativistic electron temperatures and optical depths = 1, The solution can be used for spectral fitting of X-ray spectra from astrophysical sources, We also have developed an accurate Monte Carlo method for calculating spectra and timing properties of thermal Comptonization sources, The accuracy of our kinetic equation solution is verified by comparison with the Monte Carlo results, We also compare our results with those of other publicly available methods. Furthermore, based on our Monte Carlo code, we present distributions of the photon emission times and the evolution of the average photon energy for both up and down scattering.

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