活動詳細資訊 Event Information
活動詳細資訊 Event Information
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活動訊息最後更新時間 : 2016-10-27 10:17:24
開始日期 Starting Date:2016-11-09  14:00
結束日期 Ending Date:2016-11-09  15:30
會議狀態 State:確定 Definitive
主/協辦單位 Organizer:天文及天文物理研究所 Institute of Astronomy and Astrophysics
活動地點 Venue:未定
活動備忘 Event Memo:

Abstract

In the local Universe, all stars form in clouds of molecular gas. On the largest scales in galaxies, the ensemble of molecular clouds produces a simple star formation law: more molecular gas is linearly correlated with more star formation. This star formation law must emerge from behaviour of groups of individual molecular clouds. In this talk, I will present recent observations of molecular clouds and star forming regions in our Galaxy. Using a suite of novel analysis approaches, we are able to untangle maps of molecular gas and match them to the regions of star formation. This analysis finds good evidence that significant mass flows are essential for feeding star forming regions across the Galactic disk. Additionally, higher mass molecular clouds show evidence for increased rates of star formation, suggesting again these clouds are fed from their environment over their lifetime. The large apparent scatter in the efficiency of the star formation process can be attributed in part to viewing the effects of this mass accretion over time.