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标题：The origin of K-shell Emission of Neutral Iron Line from Sgr B2
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作者：D. Chernyshov ; V. DOGIEL ; K. Koyama 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2010
卷号：2010
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We investigated the emission of neutral iron line from the massive molecular cloud Sgr B2. De- spite the main part of the observed X-ray emission from molecular clouds is variable there is a possibility of presence of stationary component. The upper limit on the intensity of the stationary component is set by XMM-Newton observations of the Bridge complex. For Bridge complex the stationary component may be as high as 10% of the peak intensity of the X-Ray emission. We estimated the possible intensity of the stationary component expected from Sgr B2 in assumption that the stationary component is produced by subrelativistic protons. We made also predictions of evolution of the equivalent width of 6.4 keV line from Sgr B2 expected in case of presence of the stationary component.