ALMA Observations of Massive Clouds in the Central Molecular Zone: Jeans Fragmentation, Ubiquitous Outflows, Keplerian Disks, and Other Upcoming Results
Title: ALMA Observations of Massive Clouds in the Central Molecular Zone: Jeans Fragmentation, Ubiquitous Outflows, Keplerian Disks, and Other Upcoming Results
Speaker: Xing Lyu (Shanghai Astronomical Observatory, Chinese Academy of Sciences)
Time: 10:00am, December 9, 2021
Location: 3-402, PMO Xianlin Campus
Abstract: I will introduce our recent results about star formation in the Central Molecular Zone around the Galactic Center using ALMA observations, including thermal Jeans fragmentation of dense gas, ubiquitous protostellar outflows, and the discovery of a massive protostellar disk that follows Keplerian rotation. While focusing on star formation activities, we also make use of the obtained data to explore astrochemistry, shocks, and other espects of the ISM evolution. These high-risk, high-reward ALMA data will allow us to gain a comprehensive view of star formation in the extreme environment around the Galactic Center, and will constitute a great sample to be compared with star formation activities in nearby molecular clouds.