2010/09/02 by Anna M. M. Scaife, Emily I. Curtis, Matthew Davies +15 · 1 citation
Physics and Astronomy · #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #Superconducting and THz Device Technology #astro-ph.GA
paper · pdf · doi:10.1111/j.1365-2966.2010.17644.x
submitted MNRAS
arxiv created 2010/09/02 · openalex publication_date 2010/11/12 · arxiv updated 2015/05/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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, Lrad−Lbol, for the sample and discuss the nature of the radio emission in terms of the available sources of ionized gas. We also investigate the Lrad−LIR correlation and suggest that radio flux density may be used as a proxy for the internal luminosity of low-luminosity protostars.