报告题目：Hunting extreme and exotic pulsars in globular clusters
主讲人：张蕾中澳天文联合研究中心(ACAMAR) 博士后研究员
时 间：2023年9月27日14:00
地 点：安徽大学磬苑校区理工E楼E400
主办单位：物理与光电工程学院
欢迎各位老师、同学届时前往！
报告摘要：
Pulsars are extremely fast-spinning, highly magnetized neutron stars, which are the progeny of massive stars, after they explode as supernovae. The most extreme pulsars are often found in globular clusters (GCs). These are spherical collections of stars that are bound together by their own gravity. They are amongst the oldest stellar systems known in the Universe and they host a large number of compact objects. Because of the extreme stellar densities found in the core of GCs, all the stars are subject to gravitational interactions with other bodies, which alter the typical stellar evolution paths that we normally find in the Galaxy. Therefore, the pulsars in GCs often show extreme or exotic properties. In the last few years, the total known population of GC pulsars has increased dramatically, jumping from about 150 objects known in 2018, to more than 290 known today. Such a surge in new discoveries and the consequent renaissance of the field has been possible mainly thanks to two major radio facilities that have recently been built: the FAST radio telescope in the northern hemisphere and the MeerKAT radio telescope in the southern hemisphere. In the talk, I will present some major breakthroughs obtained in the science of pulsars in GCs, discuss the challenges that GC observations pose, and report on the main scientific results recently obtained in the field in the recent years. Finally, I will take you into a virtual tour of the FAST site, and present some of pulsar discoveries from FAST CRARTS survey and related follow-up studies.
报告人简介：
张蕾，中澳天文联合研究中心（ACAMAR）首届博士后研究员，在中国科学院国家天文台（NAOC）和澳大利亚斯威本科技大学工作。2020年获得中国科学院大学天体物理学博士学位。2021年起在ACAMAR中心从事博士后工作，主要是利用FAST、Parkes和MeerKAT 射电望远镜做球状星团脉冲星研究，力争在这些恒星系统中发现一些新奇的脉冲星。