报告题目：Formation of massive stars: Observational signatures of newly evolved theories

　　报告人：Dr. Tapas Baug (KIAA)

　　报告摘要：In spite of their vast importance in the evolution of their host galaxies, the formation and evolution of massive stars are not yet well understood. They influence the galactic evolution and replenish interstellar medium by their strong stellar winds, outflows, expanding HII regions and supernova explosions. Energetic from massive stars may also initiate the second generation of star formation. In addition to several other theories, two theories have gained considerable observational evidence in the past few years. One of them is accretion through filaments, and another one is a collision between two nearby molecular clouds. We identified these two mechanisms in operation to form the massive stars in two Galactic star-forming regions. In this talk, I shall present the analysis of multi-wavelength data　(optical to radio wavelengths) to understand the ongoing physical processes for two massive star-forming regions.

　　报告人简介：Dr. Baug obtained his Ph.D. in the year 2013 on high angular resolution studies of late-type stars using lunar occultation technique in Physical Research Laboratory, India. During his first post-doc from 2014-2017 in Tata Institute of Fundamental Research, Mumbai, India, he started working on the feedback effect of massive stars. During another six months post-doc period in Aryabhatta Research Institute for Observational  Sciences, India, he worked on instrument related projects on 3.6 m Devasthal Optical Telescope. Dr. Baug joined Kavli Institute for Astronomy and Astrophysics, PKU, China during November 2017. At KIAA, he primarily works on massive star formation using ALMA data. He is also interested in other research areas, like, the study of the wind structures of massive Wolf-Rayet stars and outbursts of young stellar sources.

　　报告时间：2019年6月5日星期三下午14:00

　　报告地点：紫台5-216会议室

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紫金山天文台学术委员会