Very Large Array 3.5 cm Continuum Sources in the Serpens Cloud Core
Author(s) -
C. Eiroa,
J. M. Torrelles,
S. Curiel,
A. A. Djupvik
Publication year - 2005
Publication title -
the astronomical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.61
H-Index - 271
eISSN - 1538-3881
pISSN - 0004-6256
DOI - 10.1086/431742
Subject(s) - serpens , astrophysics , protostar , physics , millimeter , young stellar object , stars , astronomy , molecular cloud , star formation
We present VLA 3.5 cm continuum observations of the Serpens cloud core. 22radio continuum sources are detected. 16 out of the 22 cm sources are suggestedto be associated with young stellar objects (Class 0, Class I, flat-spectrum,and Class II) of the young Serpens cluster. The rest of the VLA sourcesplausibly are background objects. Most of the Serpens cm sources likelyrepresent thermal radio jets; on the other hand, the radio continuum emissionof some sources could be due to a gyrosynchroton mechanism arising fromcoronally active young stars. The Serpens VLA sources are spatially distributedinto two groups; one of them located towards the NW clump of the Serpens core,where only Class 0 and Class I protostars are found to present cm emission, anda second group located towards the SE clump, where radio continuum sources areassociated with objects in evolutionary classes from Class 0 to Class II. Thissubgrouping is similar to that found in the near IR, mid-IR and mm wavelengthregimes.Comment: 2 figures, accepted by Astronomical journa
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