AMI Large Array radio continuum observations of Spitzer c2d small clouds and cores

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

来源：Monthly Notices of the Royal Astronomical Society, 2011, 410(4): 2662-2678.

DOI：10.1111/j.1365-2966.2010.17644.x

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

We perform deep 1.8-cm radio continuum imaging towards 13 protostellar regions selected from the Spitzer c2d small clouds and cores programme at high resolution (25 arcsec) in order to detect and quantify the cm-wave emission from deeply embedded young protostars. Within these regions we detect 15 compact radio sources which we identify as radio protostars including two probable new detections. The sample is in general of low bolometric luminosity and contains several of the newly detected VeLLO sources. We determine the 1.8-cm radio luminosity to bolometric luminosity correlation, L-rad - L-bol, for the sample and discuss the nature of the radio emission in terms of the available sources of ionized gas. We also investigate the L-rad - L-IR correlation and suggest that radio flux density may be used as a proxy for the internal luminosity of low-luminosity protostars.

• 出版日期2011-2