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From Gas to Stars in Energetic Environments: Dense Gas Clumps in the 30 Doradus Region

Published online by Cambridge University Press:  21 March 2013

C. N. Anderson ,
D. S. Meier ,
J. Ott ,
A. Hughes  and
T. Wong
C. N. Anderson
Affiliation:
Physics Department, New Mexico Tech, 801 Leroy Pl., Socorro, NM 87801, USA email: canderso@nmt.edu, dmeier@nmt.edu
D. S. Meier
Affiliation:
Physics Department, New Mexico Tech, 801 Leroy Pl., Socorro, NM 87801, USA email: canderso@nmt.edu, dmeier@nmt.edu
J. Ott
Affiliation:
Physics Department, New Mexico Tech, 801 Leroy Pl., Socorro, NM 87801, USA email: canderso@nmt.edu, dmeier@nmt.edu National Radio Astronomy Observatory, P.O. Box O, Socorro, NM 87801, USA email: jott@nrao.edu
A. Hughes
Affiliation:
Max Plank Institute of Astronomy, Königstuhl 17 69117, Heidelberg, Germany email: hughes@mpia-hd.mpg.de
T. Wong
Affiliation:
Astronomy Department, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA email: wongt@illinois.edu
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Abstract

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We present parsec-scale interferometric maps of HCN(1-0) and HCO+(1-0) emission from dense gas in the star-forming region 30Dor10, obtained using the Australia Telescope Compact Array. This extreme star-forming region, located in the Large Magellanic Cloud, is characterized by a very intense ionizing radiation field and sub-solar metallicity, both of which are expected to affect molecular cloud structure. We detect 13 clumps of dense molecular gas, some of which are aligned in a filamentary structure. Our analysis of the clump properties shows that they have similar mass but slightly wider linewidths than clumps detected in other LMC star-forming regions.

Keywords

ISM: molecules — Magellanic Clouds — galaxies: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S292: Molecular Gas, Dust, and Star Formation in Galaxies , August 2012 , pp. 95
Copyright
Copyright © International Astronomical Union 2013