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

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 Güdel-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 $\sim 1$ 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.

43 pages, 6 figures, accepted in The Astrophysical Journal

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• The Role of Magnetic Fields in Protostellar Outflows and Star Formation
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• Internal and relative motions of the Taurus and Ophiuchus star-forming regions
• The VLA Nascent Disk And Multiplicity Survey of Perseus Protostars (VANDAM). III. Extended Radio Emission from Protostars in Perseus
• Variable Radio Emission from the Young Stellar Host of a Hot Jupiter
• Non-thermal radio continuum emission from young nearby stars
• A LOFAR detection of the low mass young star T Tau at 149 MHz
• SMA detection of an extreme millimeter flare from the young class III star HD 283572
• Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Scattered light detection of a possible disk wind in RY Tau
• Parameters of the Link between the Optical and Radio Frames from Gaia DR2 Data and VLBI Measurements
• ROME (Radio Observations of Magnetized Exoplanets). II. HD 189733 Does Not Accrete Significant Material from its Exoplanet like a T Tauri Star from A Disk
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• The System of Molecular Clouds in the Gould Belt
• A GMRT survey of regions towards the Taurus Molecular Cloud at 323 and 608 MHz
• Detection of coherent low-frequency radio bursts from weak-line TTauri stars
• Probabilistic Classification of Infrared-selected targets for SPHEREx mission: In search of YSOs
• The population of compact radio sources in M 17