AMI-LA radio continuum observations of Spitzer c2d small clouds and cores: Perseus region
Abstract
We present deep radio continuum observations of the cores identified as deeply embedded young stellar objects in the Perseus molecular cloud by the Spitzer c2d programme at a wavelength of 1.8 cm with the Arcminute Microkelvin Imager Large Array (AMI-LA). We detect 72 per cent of Class 0 objects from this sample and 31 per cent of Class I objects. No starless cores are detected. We use the flux densities measured from these data to improve constraints on the correlations between radio luminosity and bolometric luminosity, infrared luminosity and, where measured, outflow force. We discuss the differing behaviour of these objects as a function of protostellar class and investigate the differences in radio emission as a function of core mass. Two of four possible very low luminosity objects (VeLLOs) are detected at 1.8 cm. We request that any reference to this paper cites 'AMI Consortium: Scaife et al. 2011'.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- July 2011
- DOI:
- 10.1111/j.1365-2966.2011.18755.x
- arXiv:
- arXiv:1101.5514
- Bibcode:
- 2011MNRAS.415..893A
- Keywords:
-
- radiation mechanisms: general;
- stars: formation;
- ISM: clouds;
- ISM: general;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 18 pages, 9 figures, accepted MNRAS