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Chemical and kinematic complexity of the very young star-forming region Serpens Main observed with ALMA

Published online by Cambridge University Press:  04 September 2018

Łukasz Tychoniec Open the ORCID record for Łukasz Tychoniec [Opens in a new window] ,
Charles L. H. Hull ,
John J. Tobin  and
Ewine F. van Dishoeck
Łukasz Tychoniec
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, 2300RA, Leiden, The Netherlands email: tychoniec@strw.leidenuniv.nl
Charles L. H. Hull
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA
John J. Tobin
Affiliation:
Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks Street, Norman, OK 73019, USA
Ewine F. van Dishoeck
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, 2300RA, Leiden, The Netherlands email: tychoniec@strw.leidenuniv.nl Max Planck Institut für Extraterrestrische Physik, Giessenbachstrasse 1, 85748 Garching, Germany
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Abstract

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The youngest low-mass protostars are known to be chemically rich, accreting matter most vigorously, and producing the most powerful outflows. Molecules are unique tracers of these phenomena. We use ALMA to study several outflow sources in the Serpens Main region. The most luminous source, Ser-SMM1, shows the richest chemical composition, but some complex molecules are also present in S68N. No emission from complex organics is detected toward Ser-emb 8N, which is the least luminous in the sample. We discuss whether these differences reflect an evolutionary effect or whether they are due to different physical structures. We also analyze the outflow structure from these young protostars by comparing emission of CO and SiO. EHV molecular jets originating from SMM1-a,b and Ser-emb 8N contrast with no such activity from S68N, which on the other hand presents a complex outflow structure.

Keywords

astrochemistrymolecular datatechniques: interferometricstars: formationISM: individual (Serpens)ISM: jets and outflowsISM: molecules
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S332: Astrochemistry VII: Through the Cosmos from Galaxies to Planets , March 2017 , pp. 249 - 253
Copyright
Copyright © International Astronomical Union 2018 

References

Arce, H. G. & Sargent, A. I., 2006, Astrophysical Journal, 646, 1070Google Scholar