2025 天文年會 (ASROC Annual Meeting)

Exploring Complex Organic Molecules in the Orion Protostellar Cores

May 18, 2025, 12:15 PM

15m

International Conference Hall 圓形國際會議廳 (College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓)

Oral Star formation

Speaker

Shih-Ying Hsu (ASIAA)

Description

Complex organic molecules (COMs) in solar-like young stellar objects (YSOs) are of great interest due to their potential link to the origin of life. Under the ALMA Survey of Orion PGCCs (ALMASOP) project, we have identified 11 out of 56 protostellar cores that are rich in warm COMs. Our modeling suggests that the observed COMs are primarily located in the warm, innermost regions of the envelope. Interestingly, in some cases, the COMs also appear to trace the base of bipolar jets and the rotating ring structure near or within the disk boundary. These findings demonstrate that COMs are not only valuable for their potential role in prebiotic chemistry within the eventual protoplanetary disk, but also serve as insightful tracers of the physical processes occurring in the innermost regions of protostellar systems.