Exploring the depths of space has led to a remarkable discovery in the protostellar core G192.12-11.10. A rotating feature rich in complex organic molecules (COMs) such as CH3OH, CH3CHO, and NH2CHO has been identified, sparking interest in the potential connections to prebiotic chemistry in emerging planetary systems.
Through the construction of a young stellar object (YSO) model, researchers have determined that the COM-rich feature is likely situated within or near the boundary of a Keplerian disk. Image synthesis results indicate the need for additional heating mechanisms to explain the observed emission, possibly leading to a warm ring or inner disk.
Possible origins of the COM-rich feature, including accretion shocks, are discussed as potential causes for the formation of a warm ring. Furthermore, the behavior of molecules like C18O, H2CO, DCS, H2S, and OCS differs from CH3OH, suggesting a variety of physical and chemical conditions within the region.
Observations of the kinematics of H2S and OCS indicate that OCS is located closer to the central protostar than H2S, aligning with previous experimental studies. This discovery opens up new avenues for understanding the complex chemistry and dynamics at play in protostellar cores.
Authors: Shih-Ying Hsu, Chin-Fei Lee, Doug Johnstone, Sheng-Yuan Liu, Tie Liu, Leonardo Bronfman, Huei-Ru Vivien Chen, Somnath Dutta, David J. Eden, Naomi Hirano, Mika Juvela, Kee-Tae Kim, Yi-Jehng Kuan, Woojin Kwon, Chang Won Lee, Jeong-Eun Lee, Shanghuo Li, Sheng-Jun Lin, Chun-Fan Liu, Xunchuan Liu, J. A. López-Vázquez, Qiuyi Luo, Mark G. Rawlings, Dipen Sahu, Patricio Sanhueza, Hsien Shang, Kenichi Tatematsu, Yao-Lun Yang
Source: astrobiology.com