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arXiv · 1412.6445

The Gould Belt Very Large Array Survey IV: The Taurus-Auriga complex

Sergio A. Dzib·Laurent Loinard·Luis F. Rodríguez·Amy J. Mioduszewski·Gisela N. Ortiz-León·Marina A. Kounkel·Gerardo Pech·Juana L. Rivera·Rosa M. Torres·Andrew F. Boden·Lee Hartmann·Neal J. Evans II·Cesar Briceño·John Tobin
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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 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 young stellar objects 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 young stellar objects in Taurus-Auriga follow a G\"{u}del-Benz relation with $\kappa$=0.03, as we previously suggested for other regions of star formation. In general, young stellar objects in Taurus-Auriga and in all the previous studied regions seem to follow this relation with a dispersion of $\sim1$ 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.

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Sergio A. Dzib, Laurent Loinard, Luis F. Rodríguez, Amy J. Mioduszewski, Gisela N. Ortiz-León, Marina A. Kounkel, Gerardo Pech, Juana L. Rivera, Rosa M. Torres, Andrew F. Boden, Lee Hartmann, Neal J. Evans II, Cesar Briceño, John Tobin. 2014-12-19. The Gould Belt Very Large Array Survey IV: The Taurus-Auriga complex. https://doi.org/10.1088/0004-637x%2F801%2F2%2F91

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