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The Gould's Belt Very Large Array Survey. IV. The Taurus-Auriga Complex

Dzib, Sergio A. and Loinard, Laurent and Rodríguez, Luis F. and Mioduszewski, Amy J. and Ortiz-Leόn, Gisela N. and Kounkel, Marina A. and Pech, Gerardo and Rivera, Juana L. and Torres, Rosa M. and Boden, Andrew F. and Hartmann, Lee and Evans, Neal J., II and Briceño, Cesar and Tobin, John (2015) The Gould's Belt Very Large Array Survey. IV. The Taurus-Auriga Complex. Astrophysical Journal, 801 (2). Art. No. 91. ISSN 0004-637X. http://resolver.caltech.edu/CaltechAUTHORS:20150416-133003557

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Abstract

We present a multi-epoch radio study of the Taurus-Auriga star-forming complex made with the Karl G. Jansky Very Large Array at frequencies of 4.5 GHz and 7.5 GHz. We detect a total of 610 sources, 59 of which are related to young stellar objects (YSOs) and 18 to field stars. The properties of 56% of the young stars are compatible with non-thermal radio emission. We also show that the radio emission of more evolved YSOs tends to be more non-thermal in origin and, in general, that their radio properties are compatible with those found in other star-forming regions. By comparing our results with previously reported X-ray observations, we notice that YSOs in Taurus-Auriga follow a Güdel-Benz relation with κ = 0.03, as we previously suggested for other regions of star formation. In general, YSOs in Taurus-Auriga and in all the previous studied regions seem to follow this relation with a dispersion of ~1 dex. Finally, we propose that most of the remaining sources are related with extragalactic objects but provide a list of 46 unidentified radio sources whose radio properties are compatible with a YSO nature.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/801/2/91DOIArticle
http://iopscience.iop.org/0004-637X/801/2/91PublisherArticle
http://arxiv.org/abs/1412.6445arXivDiscussion Paper
ORCID:
AuthorORCID
Hartmann, Lee0000-0003-1430-8519
Tobin, John0000-0002-6195-0152
Additional Information:© 2015 American Astronomical Society. Received 2014 November 17; accepted 2014 December 19; published 2015 March 10. L.L., L.F.R., G.N.O., G.P., and J.L.R. acknowledge the financial support of DGAPA, UNAM, and CONACyT, México. N.J.E. was supported in part by NSF Grant AST-1109116 to the University of Texas at Austin. The National Radio Astronomy Observatory is operated by Associated Universities Inc. under cooperative agreement with the National Science Foundation. CASA is developed by an international consortium of scientists based at the National Radio Astronomical Observatory (NRAO), the European Southern Observatory (ESO), the National Astronomical Observatory of Japan (NAOJ), the CSIRO Australia Telescope National Facility (CSIRO/ATNF), and the Netherlands Institute for Radio Astronomy (ASTRON) under the guidance of NRAO. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France.
Funders:
Funding AgencyGrant Number
DGAPA UNAM and CONACyT (México)UNSPECIFIED
NSFAST-1109116
Subject Keywords:radio continuum: stars; radiation mechanisms: non-thermal; radiation mechanisms: thermal; techniques: interferometric
Record Number:CaltechAUTHORS:20150416-133003557
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150416-133003557
Official Citation:The Gould's Belt Very Large Array Survey. IV. The Taurus-Auriga Complex Sergio A. Dzib et al. 2015 ApJ 801 91
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56729
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:17 Apr 2015 03:12
Last Modified:26 May 2017 18:09

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