Synchrotron X-ray emission from supernova remnants. Exponential cut-off in the electron spectrum |
| |
| Authors: | O Petruk V Beshlei |
| |
| Institution: | (1) Institute of Applied Problems in Mechanics and Mathematics, National Academy of Sciences of Ukraine, vul. Naukova 3-b, L’viv, 79060, Ukraine;(2) Astronomical Observatory, Ivan Franko L’viv National University, vul. Kyryla i Mefodiia 8, L’viv, 79005, Ukraine;(3) Astrophysics Department, Ivan Franko L’viv National University, vul. Kyryla i Mefodiia 8, L’viv, 79005, Ukraine |
| |
| Abstract: | We present a model which describes the evolution of the energy spectrum of relativistic electrons in supernova remnants, with radiation losses of electrons taken into account. The model can be used to calculate the synchrotron X-ray emission from supernova remnants in the uniform interstellar medium and in the uniform interstellar magnetic field. The importance of various factors in the variations of spatial distributions of nonthermal electrons and their synchrotron emissive capacity is demonstrated. We analyze the errors which arise in the magnetic field strength when it is estimated with the use of the models which ignore the detailed pattern of the evolution of the magnetic field and the electron spectrum behind the shock front in the remnant. The evolution of synchrotron emission spectrum and the ratio between the synchrotron radio and X-ray fluxes from supernova remnants are calculated. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
