Early Planet Formation in Embedded Disks (eDisk). II. Limited Dust Settling and Prominent Snow Surfaces in the Edge-on Class I Disk IRAS 04302+2247

Zhe-Yu Daniel Lin, Zhi-Yun Li, John J. Tobin, Nagayoshi Ohashi, Jes K. Jørgensen, Leslie W. Looney, Yusuke Aso, Shigehisa Takakuwa, Yuri Aikawa, Merel L. R. van't Hoff, Itziar de Gregorio-Monsalvo, Frankie J. Encalada, Christian Flores, Sacha Gavino, Ilseung Han, Miyu Kido, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Jeong-Eun Lee, Nguyen Thi Phuong, Jinshi (Insa Choi) Sai, Rajeeb Sharma, Patrick Sheehan, Travis J. Thieme, Jonathan P. Williams, Yoshihide Yamato, Hsi-Wei Yen
Jun 28, 2023
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Publication: The Astrophysical Journal, Volume 951, Issue 1, id.9, 26 pp.

Summary

While dust disks around optically visible, Class II protostars are found to be vertically thin, when and how dust settles to the midplane are unclear. As part of the Atacama Large Millimeter/submillimeter Array large program, Early Planet Formation in Embedded Disks, we analyze the edge-on, embedded, Class I protostar IRAS 04302+2247, also nicknamed the "Butterfly Star. The results suggest that the dust of this Class I source has yet to vertically settle significantly.
Class I Protostar Protostellar Disks eDisk Large Program
Travis J. Thieme
Travis J. Thieme
Postdoctoral Research Fellow