Name:
Martin-Domenech_2021_ApJ_923_1 ...
Size:
2.534Mb
Format:
PDF
Description:
Final Published Version
Author
Martín-Doménech, R.Bergner, J.B.
Öberg, K.I.
Carpenter, J.
Law, C.J.
Huang, J.
Jørgensen, J.K.
Schwarz, K.
Wilner, D.J.
Affiliation
Lunar and Planetary Laboratory, University of ArizonaIssue Date
2021
Metadata
Show full item recordPublisher
IOP Publishing LtdCitation
Martín-Doménech, R., Bergner, J. B., Öberg, K. I., Carpenter, J., Law, C. J., Huang, J., Jørgensen, J. K., Schwarz, K., & Wilner, D. J. (2021). Hot Corino Chemistry in the Class I Binary Source Ser-emb 11. Astrophysical Journal.Journal
Astrophysical JournalRights
Copyright © 2021. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
We report the detection of more than 120 emission lines corresponding to eight complex organic molecules (COMs; CH3OH, CH3CH2OH, CH3OCH3, CH3OCHO, CH3COCH3, NH2CHO, CH2DCN, and CH3CH2CN) and three isotopologues (CH2DOH, 13CH3CN, and CH3C15N) toward the western component of the Ser-emb 11 binary young stellar object using observations with the Atacama Large Millimeter/submillimeter Array at ∼1 mm. The complex organic emission was unresolved with a ∼0.″5 beam (∼220 au) in a compact region around the central protostar, and a population diagram analysis revealed excitation temperatures above 100 K for all COMs, indicating the presence of a hot corino. The estimated column densities were in the range of 1017−1018 cm−2 for the O-bearing COMs, and three orders of magnitude lower for the N-bearing species. We also report the detection of H2CO and CH3OH emission in a nearby millimeter source that had not been previously cataloged. Ser-emb 11 is classified in the literature as a Class I source near the Class 0/I cutoff. The estimated COM relative abundances in Ser-emb 11 W and the other three Class I hot corino sources reported in the literature are consistent with those of Class 0 hot corinos, suggesting a continuity in the chemical composition of hot corinos during protostellar evolution. © 2021. The American Astronomical Society. All rights reserved.Note
Immediate accessISSN
0004-637XVersion
Final published versionae974a485f413a2113503eed53cd6c53
10.3847/1538-4357/ac26b9