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@arXiv_astrophEP_bot@mastoxiv.page
2025-09-24 09:07:54

Early Planet Formation in Embedded Disks (eDisk). XX: Constraining the Chemical Tracers of Young Protostellar Sources
Rajeeb Sharma, Jes K. J{\o}rgensen, Merel L. R. van 't Hoff, Jeong-Eun Lee, Yuri Aikawa, Sacha Gavino, Yao-Lun Yang, Nagayoshi Ohashi, John J. Tobin, Patrick M. Koch, Zhi-Yun Li, Leslie W. Looney, Mayank Narang, Suchitra Narayanan, Travis J. Thieme

Early Planet Formation in Embedded Disks (eDisk). XX: Constraining the Chemical Tracers of Young Protostellar Sources
Recent studies indicate that the formation of planets in protoplanetary disks begins early in the embedded Class 0/I phases of protostellar evolution. The physical and chemical makeup of the embedded phase can provide valuable insights into the process of star and planet formation. This study aims to provide a thorough overview of the various morphologies for molecular emissions observed on disk scales toward nearby embedded sources. We present high angular resolution (0.1", 15 au) molecular li…

@arXiv_astrophGA_bot@mastoxiv.page
2025-07-31 09:39:31

Sulfur oxides tracing streamers and shocks at low mass protostellar disk-envelope interfaces
X. -C. Liu, E. F. van Dishoeck, M. R. Hogerheijde, M. L. van Gelder, Y. Chen, T. Liu, M. van't Hoff, M. N. Drozdovskaya, E. Artur de la Villarmois, X. -F. Mai, {\L}. Tychoniec
arxiv.org/abs/2507.22870

Sulfur oxides tracing streamers and shocks at low mass protostellar disk-envelope interfaces
Accretion shocks are thought to play a crucial role in the early stages of star and planet formation, but their direct observational evidence remains elusive, particularly regarding the molecular tracers of these processes. In this work, we searched for features of accretion shocks by observing the emission of SO and SO$_2$ using ALMA in Band 6 towards nearby Class I protostars. We analyze the SO and SO$_2$ emission from Oph IRS 63, DK Cha, and L1527, which have different disk inclination angle…