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Date and Time of the Query: 2019-06-25 T12:36:37 PDT
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For refcode 2013A&A...549A.133K:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2013A&A...549A.133K VLA/JVLA monitoring of bright northern radio sources Kurinsky, N.; Sajina, A.; Partridge, B.; Myers, S.; Chen, X.; Lopez-Caniego, M. Abstract. We report multiple epoch VLA/JVLA observations of 89 northern hemisphere sources, most with 37 GHz flux density >1 Jy, observed at 4.8, 8.5, 33.5, and 43.3 GHz. The high frequency selection leads to a predominantly flat spectrum sample, with 85% of our sources being in the Planck Early Release Compact Source Catalog (ERCSC). These observations allow us to: 1) validate Planck's 30 and 44 GHz flux density scale; 2) extend the radio spectral energy distributions of Planck sources to lower frequencies allowing for the full 5-857 GHz regime to be studied; and 3) characterize the variability of these sources. At 30 GHz and 44 GHz, the JVLA and Planck flux densities agree to within ~3%. On timescales of less than two months the median variability of our sources is 2%. On timescales of about a year the median variability increases to 14%. Using the WMAP 7-year data, the 30 GHz median variability on a 1-6 years timescale is 16%. Tables 3 and 4 are available in electronic form at http://www.aanda.org Key words: radio continuum: galaxies, galaxies: active, catalogs
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