【直播】【上海天文台天体物理学术报告】中科院上海天文台吕行

报告名称：

An ALMA Campaign to Peer into the Central Molecular Zone

报告时间：

2023年2月23日(周四)15:00

报告嘉宾：

吕行 中科院上海天文台

主办单位：

中科院上海天文台

直播通道

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报告人介绍

吕行 中科院上海天文台

Xing Lu is an associated researcher at Shanghai Astronomical Observatory. His research focusses on observations of star formation in massive molecular clouds in the Galaxy, by using interferometers such as ALMA, SMA, and JVLA. He obtained a PhD degree in astrophysics in 2016 at Nanjing University. He also visited Harvard-Smithsonian Center for Astrophysics as an SMA predoctoral fellow in 2012-2015. In 2016-2021, he worked for the ALMA Project at National Astronomical Observatory of Japan as an ALMA project research fellow.

报告简介

The central 500 pc of our Galaxy, known as the ‘Central Molecular Zone’ or CMZ, contains a huge amount of dense molecular gas. Thanks to the extreme physical conditions around the Galactic Center, star formation in the CMZ shows very different characteristics compared to that in the solar neighborhood, for example, 10 times lower star formation efficiency, and potentially top-heavy initial mass functions. To investigate the origin of the peculiar star formation activities in the CMZ, we have started an ALMA campaign to peer into molecular clouds, dense cores, and accretion disks in the CMZ. The talk will have two parts. In the first part, I will report our recently published work on the discovery of a flyby-perturbed protostellar disk with spiral arms. In the second part, I will introduce several of our ongoing projects to observe a unique class of slim filaments, the magnetic field in dense cores, and fine structures inside an accretion disk in the CMZ.

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编辑：吴良秀

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