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J/ApJ/805/9   Gould's Belt VLA Survey. II. Serpens region   (Ortiz-Leon+, 2015)
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Beginning of ReadMe : J/ApJ/805/9 Gould's Belt VLA Survey. II. Serpens region (Ortiz-Leon+, 2015) ================================================================================ The Gould's Belt Very Large Array survey. II. The Serpens region. Ortiz-Leon G.N., Loinard L., Mioduszewski A.J., Dzib S.A., Rodriguez L.F., Pech G., Rivera J.L., Torres R.M., Boden A.F., Hartmann L., Evans Ii N.J., Briceno C., Tobin J., Kounkel M.A., Gonzalez-lopezlira R.A. <Astrophys. J., 805, 9 (2015)> =2015ApJ...805....9O ================================================================================ ADC_Keywords: Radio continuum ; Cross identifications ; Infrared sources ; X-ray sources ; YSOs ; Spectral types Keywords: astrometry; magnetic fields; radiation mechanisms: non-thermal; radio continuum: stars; techniques: interferometric Abstract: We present deep ( 17muJy) radio continuum observations of the Serpens molecular cloud, the Serpens south cluster, and the W40 region obtained using the Very Large Array in its A configuration. We detect a total of 146 sources, 29 of which are young stellar objects (YSOs), 2 of which are BV stars, and 5 more of which are associated with phenomena related to YSOs. Based on their radio variability and spectral index, we propose that about 16 of the remaining 110 unclassified sources are also YSOs. For approximately 65% of the known YSOs detected here as radio sources, the emission is most likely non-thermal and related to stellar coronal activity. As also recently observed in Ophiuchus, our sample of YSOs with X-ray counterparts lies below the fiducial Guedel & Benz (1993ApJ...405L..63G) relation. Finally, we analyze the proper motions of nine sources in the W40 region. This allows us to better constrain the membership of the radio sources in the region. Description: The Serpens molecular cloud and the Serpens South cluster were observed in the same observing sessions on three different epochs (2011 June 17, July 19, and September 12 UT), using 25 and 4 pointings, respectively, with the Jansky Very Large Array (JVLA) at 4.5 and 4.5GHz. The W40 region, on the other hand, was only observed on two epochs (2011 June 17 and July 16), using 13 pointings.