时间：6月14日（周五）上午9：30

　　地点：多学科大楼226

　　报告人：杨睿智

　　主持人：陈松战 研究员

　　题目：年轻巨星团与河内宇宙线起源

　　摘要：

　　We found a universal hard spectrum and 1/r spatial distribution of Cosmic rays (CRs) around several young massive clusters in the Galaxy. The derived 1/r decrement of the CR density with the distance from a star cluster is a distinct signature of continuous injection of CRs into the interstellar medium. And the hard energy spectra of parent protons indicate that these massive star clusters are promising candidates of Galactic PeVatrons. Such objects can provide a distinct CR component with hard spectrum, which may give natural explanation for the anomalies of the local observed flux of the primary and secondary cosmic rays.

　　个人简介：

　　2013年在紫金山天文台获得博士学位，2013年至今在马普核物理所做博后。将于2019年8月全职回到中国科学技术大学工作。主要研究领域为伽玛射线天文和河内宇宙线物理.