welcome!欢迎进入兰州大学萃英学院

0931-8913399

NEWS  CONTENT

讲座信息

讲座信息
活动通讯
前沿讯息
科学研究
当前位置: 本站首页 > 学术科技 > 讲座信息 > 正文

萃英学院“聚英萃华”校友学术论坛(第二场)——加拿大阿尔伯塔大学赵悦博士学术交流会

发布人:萃英学院办公室浏览量: 发布时间:2018-06-26 03:14:49

应萃英学院和物理科学与技术学院邀请,萃英学院校友加拿大阿尔伯塔大学赵悦博士来我院做学术交流,欢迎广大师生参加。

报告题目:Globular Cluster X-ray Sources

报告时间:2018年6月27日(星期三)下午14:30-16:30

报告地点:观云楼813

报告人:赵悦 博士

报告简介:

Globular clusters (GCs) are gravitationally-bound, massive stellar populations. Due to the massive number of stellar objects, GCs harbor the super dense core region where stellar density is 4-5 orders of magnitudes higher than other parts of the galaxy. This unique feature of GCs makes them the favorable environment for enormous N-body (N>2) close interactions. The fact that GCs are old indeed ensures that an unignorable portion compact objects like neutron stars, white dwarfs or stellar-mass black holes, which are strongly involved in gravitational interaction with other stellar objects, during which a normal star is replaced or “captured” by a compact object, forming the so-called X-ray binaries (XRBs). Observations with X-ray facilities over the last decades has revealed an overabundance of X-ray sources in GCs, which is consistent with our theory of how XRBs are formed in GCs. The ongoing research of these X-ray sources can not only shed light on our understanding of XRBs per se but also can it enrich our knowledge of the dynamical evolutional properties of GCs as entireties.

My talk is structured as follow, I will first give a brief introduction on observational properties of GCs and the associated XRBs and then move on to the methodologies we use to identify different XRBs. Finally, I will present my recent result on the X-ray study of the GC M3 (NGC 5272).

萃英学院

2018年6月25日

 

上一篇:萃英学院学术课程_中山大学人类学系刘文锁教授
下一篇:哈尔滨工业大学王明新教授

            版权所有:兰州大学萃英学院

        技术支持:兰州壹杰华安

    备案号申请中

    邮编:730000