AMI-LA radio continuum observations of Spitzer c2d small clouds and cores: Perseus region

作者：Scaife Anna M M^*; Hatchell Jennifer; Davies Matthew; Franzen Thomas M O; Grainge Keith J B; Hobson Michael P; Hurley Walker Natasha; Lasenby Anthony N; Olamaie Malak; Perrott Yvette C; Pooley Guy G; Rodriguez Gonzalvez Carmen; Saunders Richard D E; Schammel Michel P; Scott Paul F; Shimwell Timothy; Titterington David; Waldram Elizabeth

来源：Monthly Notices of the Royal Astronomical Society, 2011, 415(1): 893-910.

DOI：10.1111/j.1365-2966.2011.18755.x

• radiation mechanisms: general
• stars: formation
• ISM: clouds
• ISM: general

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.

• 出版日期2011-7