学术通告
2019年度
2018年度
2017年度
2016年度
2015年度
2014年度
2013年度
2012年度
2011年度
2010年度
规章制度
通知公告
·中国科学院云南天文台关于2020年度岗位聘用事宜的通知 (2020-09-03)
·昆明分院拟提名2020年度云南省科学技术奖励项目相关信息公示 (2020-07-06)
·中国科学院云南天文台2019-2020学年优秀学生初选名单公示 (2020-05-25)
·关于做好2020年度中国科学院院长奖学金初选工作的通知 (2020-05-02)
·关于做好2020年度朱李月华奖学金评选工作的通知 (2020-05-02)
·关于申报2020年度中国科学院大学—必和必拓奖学金的通知 (2020-01-14)
·计算太阳物理领域博士后招聘启事 (2020-01-06)
·2019年“国家奖学金”获奖名单公示 (2019-11-01)
·关于遴选推荐2020年度“中国科学院青年创新促进会”会员的通知 (2019-10-17)
·关于申请2019年研究生国家奖学金的通知 (2019-10-14)
您现在的位置:首页 > 新闻资讯 > 学术通告
【云台学术报告】2020年8月6日 (星期四) 下午 3:00 - 4:00 科研楼1号楼228会议室
2020-07-29  |  作者:  |  【  】 【打印】 【关闭

【学术报告】

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

报告题目:  Hot accretion theory: new progresses and challenges

报告人:   谢富国 研究员

报告人单位: 中科院上海天文台

报告时间:  202086日(星期3:00-4:00  

报告地点:  科研楼1号楼228会议室

报告语言:    中文 

报告摘要: 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The accretion onto compact systems can be roughly classified into two types, depending on the gas temperature. One is cold thus emits thermal radiation, and the other is hot thus radiates non-thermal emission. The hot accretion flow (HAF; conventionally also named advection-dominated accretion flow) has been well established in black hole (BH) X-ray binaries and AGNs. Here in this talk, I will first provide a brief description of this theory, and its applications (successes). Then, I will discuss the consequence and importance of accumulation of magnetic fields near BH, where a so-called magnetized arrested disk (MAD) will be developed. I will also highlight several new observations in this field, i.e. the temperature of HAF, the hybrid radio/X-ray correlation, and the outer radius of HAF. Some of them agree with this model, while others challenge it.

报告人简介:  Prof. Fu-Guo Xie got his batchers degree in University of Sci. and Tech. of China (USTC) in 2004, and PhD in Shanghai Astronomical Observatory (SHAO) in 2009. From 2009 to 2011, he was an institute postdoc at Kavli institute for Astro. and Astroph. of PKU (KIAA). Afterwards, he joined SHAO. He is now is a tenured research professor and the deputy director of the Astrophysics Division. He was selected to be a member of the Youth Innovation and Promotion Association of CAS. His main research interests are the accretion theory and its application in low-luminosity AGNs and BH binaries. Recently, he is also involved in the SKA-related sciences, with an emphasis on the AGN feedback process.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

本通知也可以在云台学术报告网页看到: 

http://www.ynao.cas.cn/xwzx/xstg/ 

申请安排学术报告的同事请参见台学术报告管理办法: 

http://www.ynao.cas.cn/xwzx/xstg/gzzd/ 

云台邀请团组:南方天文观测基地

邀请人:董小波 0871-6733-3450

7月29日  

 
©2010  中科院云南天文台    版权所有     滇ICP备05000010号-1    滇公网安备53011102001009号
地址:中国 云南省 昆明市 官渡区 羊方旺396号    邮编:650216    联系我们