Title：ALMA View of Disk and Jet Formation in the Early Phase of Star Formation

Time：2:00pm Aug. 4th (Thursday)

Zoom ID：818 1409 2070，Password：6360

Speaker：Prof. Chin-Fei Lee（Academia Sinica Institute of Astronomy and Astrophysics）

Abstract：Stars like our Sun are forming everywhere in our home galaxy, the Milky Way. ALMA, which stands for Atacama Large Millimeter/Submillimeter Array, is currently the largest radio interferometry array on Earth. With its unprecedented sensitivity and resolution, we have mapped a few young star-forming regions in great detail, making a few breakthrough discoveries in the study of star formation. In this talk, I will first briefly introduce the current theory of star and planet formation. Then, I will present our ALMA results of star formation in detail. In particular, I will report our results of accretion disks and jets around the forming stars and discuss their formation mechanisms. The accretion disks are expected to evolve later into protoplanetary disks in which planets are formed.

Bio: Chin-Fei Lee obtained his PhD degree in Astronomy from the University of Maryland, USA in 2001. He was a postdoctoral fellow in the NASA/JPL/Caltech, USA from 2001 to 2003, and in the Harvard-Smithsonian Center for Astrophysics – Submillimeter Array Project, USA from 2003-2006. He joined the Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA) as an Assistant Research Fellow in late 2006, and is currently a Distinguished Research Fellow. He was the Deputy Director of the ASIAA from 2017-2021, and also a joint Professor in the Physics Department of National Taiwan University from 2015-2021. He is the PI of the ALMA-Taiwan project and manages the ASIAA CASA Development Center (ACDC) for ALMA software developments. He is also a member of the International Astronomical Union (IAU). He mainly studies the formation and evolution of Sunlike stars, and aims to uncover their physical processes with radio observations and magneto-hydrodynamical simulations.