VLA 3.5 cm continuum sources in the Serpens cloud core

Details VLA 3.5 cm continuum sources in the Serpens cloud core VLA 3.5 cm continuum sources in the Serpens cloud core

2005-06-02

arxiv.org/abs/astro-ph/0506054v1

Astron.J.130:643-651,2005

Astronomy and Astrophysics

Astrophysics

2 figures, accepted by Astronomical journal

Scientific paper

10.1086/431742

We present VLA 3.5 cm continuum observations of the Serpens cloud core. 22 radio continuum sources are detected. 16 out of the 22 cm sources are suggested to 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 sources plausibly are background objects. Most of the Serpens cm sources likely represent thermal radio jets; on the other hand, the radio continuum emission of some sources could be due to a gyrosynchroton mechanism arising from coronally active young stars. The Serpens VLA sources are spatially distributed into 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, and a second group located towards the SE clump, where radio continuum sources are associated with objects in evolutionary classes from Class 0 to Class II. This subgrouping is similar to that found in the near IR, mid-IR and mm wavelength regimes.

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