TY - BOOK AU - Hisham Anwer Saleh Mohamed AU - Alaa Ibrahim Hussein Ibrahim , AU - Mohamed Tarek Hussein Zakaria , AU - Tharwat Mahmoud Elsherbini , TI - The global spectral properties of X - ray and gamma - ray bursts from SGR 1806 - 20 / PY - 2010/// CY - Cairo : PB - Hisham Anwer Saleh Mohamed , KW - Magnetars KW - Newtron stons KW - X - rays and T - rays N1 - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics; Issued also as CD N2 - Magnetars are cosmic sources of high energy radiations that emit short, intense bursts of X - rays and T - rays . Studying the spectral and temporal properties of these bursts allows us to identify the physical mechanism responsible for their emission and to probe the interaction of radiation and matter at extreme conditions of tem-perature, gravity, and magnetic field that cannot be reproduced in laboratories or particle accelerators UR - http://172.23.153.220/th.pdf ER -