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arXiv 1104.2071astro-ph.HE
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低质量微类星体喷流模型

A model for jets of low-mass microquasars

Gabriela S. Vila, Gustavo E. Romero

摘要:

在这项工作中,我们提出了一个新的喷流模型的非热宽带发射的低质量微类星体。我们计算了相对论粒子,初级电子和质子以及次级μ子,带电π子和电子-正电子对对源的电磁波谱的贡献。所有粒子种类的能量分布得到一个扩展的,不均匀的区域。我们包括粒子的能量损失,注射,衰变和逃离加速区的详细分析。我们还计算了由于光子-光子湮灭的吸收效应。作为应用,我们考虑了星系晕中一个著名的低质量X射线双星XTE J1118+480的情况,并给出了它的高能辐射的预测

英文摘要:

In this work we present a new jet model for the non-thermal broadband emission of low-mass microquasars. We calculate the contribution of relativistic particles, primary electrons and protons as well as secondary muons, charged pions and electron-positron pairs, to the electromagnetic spectrum of the sources. The distribution in energy of all particle species is obtained for an extended, inhomogeneous region. We include detailed analysis of particle energy losses, injection, decay and escape from the acceleration zone. We also calculate absorption effects due to photon-photon annihilation. As an application, we consider the case of XTE J1118+480, a well-known low-mass X-ray binary in the galactic halo, and we present predictions about its high-energy radiation

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