文章基本信息

标题：Contribution of hadronic $\gamma$-rays in the high energy spectra of black hole binaries
本地全文：下载
作者：S. Bhattacharyya ; N. Bhatt ; R. Misra 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：In the inner regions of an accretion disk around a black hole, relativistic protons can interact with ambient matter to produce electrons, positrons and g -rays. The final steady state electron and positron spectrum are self-consistently calculated by solving an integro-differential equation where the Coulomb and Compton cooling of particles, e± pair production due to g −g annihilation and pair annihilation are taken into account. The resultant g -ray spectrum shows that the contribution of high energy photons (E > 0.8 MeV) could be entirely due to p− p interactions. The observedX-ray/g -ray spectrum of Cyg X-1, in Hard and Soft states, are fitted with the present model. It is shown that GLAST will be able to detect black hole binaries and provide evidence for the presence of non-thermal protons in the accretion disk