Oral Presentation

The Origin of Complex Organic Molecule (COM) Emissions of Hot Corinos

Author(s): Shih-Ying Hsu (ASIAA & NTU) and the ALMASOP Collaboration

Presenter: Shih-Ying Hsu (ASIAA & NTU)

Complex organic molecules (COMs) are of great interest due to their potential biogenetic connections to the planetary system. We apply spectral energy distribution (SED) fitting analysis toward a sample of the young stellar object (YSO) under the Atacama Large Millimeter/sub-millimeter Array Survey of Orion Planck Galactic Cold Clumps (ALMASOP) project. The distribution of the YSO model parameters suggests the association between the detection of hot corino and the envelop, which is further supported by the simulated methanol emissions images. We propose a scenario for which the COM emissions originate from the envelope based on the envelope density profiles. Under this scenario, a protostar with high luminosity and envelope density will have more intense COM emissions, making the hot corino easier to be detected at a given sensitivity. Based on this scenario, we will further discuss the implications of organic chemistry at later stages of the YSO evolution.