کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1765752 | 1020117 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The beaming of external Compton emission The beaming of external Compton emission](/preview/png/1765752.png)
We consider a relativistically moving blob consisting of an isotropic electron distribution that Compton-scatters photons from an external isotropic radiation field. We compute the resulting beaming pattern, i.e. the distribution of the scattered photons, in the blob frame as well as in the observer’s frame by using the full Klein–Nishina cross section and the exact incident photon distribution. In the Thomson regime the comparison of our approach with Dermer (1995) results in concurrent characteristics but different absolute number of the scattered photons by a factor of fcorr = 3.09. Additionally, our calculation yields a slightly lower boost factor which varies the more from the corresponding value in Dermer (1995) the higher the spectral index p of the electron distribution gets.
Journal: Advances in Space Research - Volume 48, Issue 8, 15 October 2011, Pages 1415–1420