ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87

Shih Ying Hsu; Chin Fei Lee; Sheng Yuan Liu; Doug Johnstone; Tie Liu; Satoko Takahashi; Leonardo Bronfman; Huei Ru Vivien Chen; Somnath Dutta; David J. Eden; Neal J. Evans; Naomi Hirano; Mika Juvela; Yi Jehng Kuan; Woojin Kwon; Chang Won Lee; Jeong Eun Lee; Shanghuo Li; Chun Fan Liu; Xunchuan Liu; Qiuyi Luo; Sheng Li Qin; Dipen Sahu; Patricio Sanhueza; Hsien Shang; Kenichi Tatematsu; Yao Lun Yang

doi:10.3847/1538-4357/ad7e25

ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87

Shih Ying Hsu, Chin Fei Lee, Sheng Yuan Liu, Doug Johnstone, Tie Liu, Satoko Takahashi, Leonardo Bronfman, Huei Ru Vivien Chen, Somnath Dutta, David J. Eden, Neal J. Evans, Naomi Hirano, Mika Juvela, Yi Jehng Kuan, Woojin Kwon, Chang Won Lee, Jeong Eun Lee, Shanghuo Li, Chun Fan Liu, Xunchuan LiuQiuyi Luo, Sheng Li Qin, Dipen Sahu, Patricio Sanhueza, Hsien Shang, Kenichi Tatematsu, Yao Lun Yang

Department of Earth Sciences (Include Institute of Marine Environmental Science and Technology)

Research output: Contribution to journal › Article › peer-review

Abstract

HOPS 87 is a Class 0 protostellar core known to harbor an extremely young bipolar outflow and a hot corino. We report the discovery of localized, chemically rich regions near the bases of the two-lobe bipolar molecular outflow in HOPS 87 containing molecules such as H₂CO, ¹³CS, H₂S, OCS, and CH₃OH, the simplest complex organic molecule (COM). The locations and kinematics suggest that these localized features are due to jet-driven shocks rather than being part of the hot-corino region encasing the protostar. The COM compositions of the molecular gas in these jet-localized regions are relatively simpler than those in the hot-corino zone. We speculate that this simplicity is due to either the liberation of ice with a less complex chemical history or the effects of shock chemistry. Our study highlights the dynamic interplay between the protostellar bipolar outflow, disk, inner-core environment, and the surrounding medium, contributing to our understanding of molecular complexity in solar-like young stellar objects.

Original language	English
Article number	29
Journal	Astrophysical Journal
Volume	976
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/ad7e25
Publication status	Published - 2024 Nov 1

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Hsu, S. Y., Lee, C. F., Liu, S. Y., Johnstone, D., Liu, T., Takahashi, S., Bronfman, L., Chen, H. R. V., Dutta, S., Eden, D. J., Evans, N. J., Hirano, N., Juvela, M., Kuan, Y. J., Kwon, W., Lee, C. W., Lee, J. E., Li, S., Liu, C. F., ... Yang, Y. L. (2024). ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87. Astrophysical Journal, 976(1), Article 29. https://doi.org/10.3847/1538-4357/ad7e25

Hsu, SY, Lee, CF, Liu, SY, Johnstone, D, Liu, T, Takahashi, S, Bronfman, L, Chen, HRV, Dutta, S, Eden, DJ, Evans, NJ, Hirano, N, Juvela, M, Kuan, YJ, Kwon, W, Lee, CW, Lee, JE, Li, S, Liu, CF, Liu, X, Luo, Q, Qin, SL, Sahu, D, Sanhueza, P, Shang, H, Tatematsu, K & Yang, YL 2024, 'ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87', Astrophysical Journal, vol. 976, no. 1, 29. https://doi.org/10.3847/1538-4357/ad7e25

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title = "ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87",

abstract = "HOPS 87 is a Class 0 protostellar core known to harbor an extremely young bipolar outflow and a hot corino. We report the discovery of localized, chemically rich regions near the bases of the two-lobe bipolar molecular outflow in HOPS 87 containing molecules such as H2CO, 13CS, H2S, OCS, and CH3OH, the simplest complex organic molecule (COM). The locations and kinematics suggest that these localized features are due to jet-driven shocks rather than being part of the hot-corino region encasing the protostar. The COM compositions of the molecular gas in these jet-localized regions are relatively simpler than those in the hot-corino zone. We speculate that this simplicity is due to either the liberation of ice with a less complex chemical history or the effects of shock chemistry. Our study highlights the dynamic interplay between the protostellar bipolar outflow, disk, inner-core environment, and the surrounding medium, contributing to our understanding of molecular complexity in solar-like young stellar objects.",

author = "Hsu, {Shih Ying} and Lee, {Chin Fei} and Liu, {Sheng Yuan} and Doug Johnstone and Tie Liu and Satoko Takahashi and Leonardo Bronfman and Chen, {Huei Ru Vivien} and Somnath Dutta and Eden, {David J.} and Evans, {Neal J.} and Naomi Hirano and Mika Juvela and Kuan, {Yi Jehng} and Woojin Kwon and Lee, {Chang Won} and Lee, {Jeong Eun} and Shanghuo Li and Liu, {Chun Fan} and Xunchuan Liu and Qiuyi Luo and Qin, {Sheng Li} and Dipen Sahu and Patricio Sanhueza and Hsien Shang and Kenichi Tatematsu and Yang, {Yao Lun}",

note = "Publisher Copyright: {\textcopyright} 2024. The Author(s). Published by the American Astronomical Society.",

year = "2024",

month = nov,

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doi = "10.3847/1538-4357/ad7e25",

language = "English",

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T1 - ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87

AU - Hsu, Shih Ying

AU - Lee, Chin Fei

AU - Liu, Sheng Yuan

AU - Johnstone, Doug

AU - Liu, Tie

AU - Takahashi, Satoko

AU - Bronfman, Leonardo

AU - Chen, Huei Ru Vivien

AU - Dutta, Somnath

AU - Eden, David J.

AU - Evans, Neal J.

AU - Hirano, Naomi

AU - Juvela, Mika

AU - Kuan, Yi Jehng

AU - Kwon, Woojin

AU - Lee, Chang Won

AU - Lee, Jeong Eun

AU - Li, Shanghuo

AU - Liu, Chun Fan

AU - Liu, Xunchuan

AU - Luo, Qiuyi

AU - Qin, Sheng Li

AU - Sahu, Dipen

AU - Sanhueza, Patricio

AU - Shang, Hsien

AU - Tatematsu, Kenichi

AU - Yang, Yao Lun

PY - 2024/11/1

Y1 - 2024/11/1

N2 - HOPS 87 is a Class 0 protostellar core known to harbor an extremely young bipolar outflow and a hot corino. We report the discovery of localized, chemically rich regions near the bases of the two-lobe bipolar molecular outflow in HOPS 87 containing molecules such as H2CO, 13CS, H2S, OCS, and CH3OH, the simplest complex organic molecule (COM). The locations and kinematics suggest that these localized features are due to jet-driven shocks rather than being part of the hot-corino region encasing the protostar. The COM compositions of the molecular gas in these jet-localized regions are relatively simpler than those in the hot-corino zone. We speculate that this simplicity is due to either the liberation of ice with a less complex chemical history or the effects of shock chemistry. Our study highlights the dynamic interplay between the protostellar bipolar outflow, disk, inner-core environment, and the surrounding medium, contributing to our understanding of molecular complexity in solar-like young stellar objects.

AB - HOPS 87 is a Class 0 protostellar core known to harbor an extremely young bipolar outflow and a hot corino. We report the discovery of localized, chemically rich regions near the bases of the two-lobe bipolar molecular outflow in HOPS 87 containing molecules such as H2CO, 13CS, H2S, OCS, and CH3OH, the simplest complex organic molecule (COM). The locations and kinematics suggest that these localized features are due to jet-driven shocks rather than being part of the hot-corino region encasing the protostar. The COM compositions of the molecular gas in these jet-localized regions are relatively simpler than those in the hot-corino zone. We speculate that this simplicity is due to either the liberation of ice with a less complex chemical history or the effects of shock chemistry. Our study highlights the dynamic interplay between the protostellar bipolar outflow, disk, inner-core environment, and the surrounding medium, contributing to our understanding of molecular complexity in solar-like young stellar objects.

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JF - Astrophysical Journal

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ER -

ALMASOP. The Localized and Chemically Rich Features near the Bases of the Protostellar Jet in HOPS 87

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