A High-Definition X-ray View of Star Formation and Active Galaxies

报告摘要

In this talk I will highlight X-ray observations of star forming complex in our galaxy as well as active galaxies in the local universe with the power of Chandra X-ray Observatory. The circumnuclear region in nearby active galaxies allows a more detailed view of the AGN-host galaxy interaction than their high redshift siblings. However, it is ubiquitously highly complex with presence of ionized gas, collimated radio outflow, and star formation activities, besides the active nucleus. I will present the CHandra Extended Emission Line Region Survey (CHEERS), an X-ray imaging spectroscopic study of the circumnuclear regions of nearby archetypal Seyfert galaxies, designed to take full advantage of Chandra's unique angular resolution by spatially resolving feedback signatures, jet-cloud interactions and merger activities. Supplemented with observations in other wavelength, the line ratios and kinematics provide keys to diagnose if the line emission is excited through photoionization by the active nucleus or through high-velocity shocks generated at the interface between an outflow and the ISM.

报告人

王俊峰教授,厦门大学

报告人介绍

王俊峰教授2001年本科毕业于南京大学天文系,2007年12月美国宾夕法尼亚州立大学获得天体物理博士学位后,在美国哈佛史密松天体物理中心进行博士后研究,2012年任职美国西北大学跨学科天体物理中心研究助理教授,2013年入选“国家高层次人才青年项目”入职厦门大学天文学系任“闽江特聘”教授。他擅长X射线与多波段结合对恒星形成区、近邻星系、活动星系核进行观测研究,主要关注星系和黑洞的共同演化。作为项目负责人曾承担十余项NASA、ESA空间卫星观测项目,主持国家自然科学基金面上、联合重点项目,并参与国家重点研发计划和国家自然科学基金重点项目,2015年获得国家自然科学基金委优秀青年科学基金支持。已在Nature、ApJ和MNRAS等主流天文专业期刊发表SCI论文60余篇,总引用约1900次,H因子为27。

地点

物理学院新楼5楼多功能厅

时间

2021年4月20日(周二),2 pm

邀请人