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2011MNRAS.416..559B - Mon. Not. R. Astron. Soc., 416, 559-566 (2011/September-1)
The Planck-ATCA coeval observations project: the faint sample.
BONAVERA L., MASSARDI M., BONALDI A., GONZALEZ-NUEVO J., DE ZOTTI G. and EKERS R.D.
Abstract (from CDS):
The Planck Early Release Compact Source Catalogue (ERCSC) contains 57 of our sources. A comparison between the PACO catalogue and the ERCSC confirms that the reliability of the latter is better than 95 per cent. The missing ERCSC sources are typically associated with the Large Magellanic Cloud, the Milky Way or are otherwise extended.
The spectral analysis of the PACO faint catalogue shows a spectral steepening of the sources at high frequencies, confirming the results obtained from the PACO bright sample.
A comparison with AT20G measurements, carried out, on average, a few years earlier, has demonstrated that, on these time-scales, our sources show a rather high variability with an rms amplitude of ≃ 40 per cent at 20 GHz. The source spectral properties are found not to vary substantially with flux density, except for an increase in the fraction of steep spectrum sources at fainter flux densities.
Our data also allow us to extend by a factor of ≃ 5 downwards in flux density the source counts at ≃ 33 and ≃ 40 GHz obtained from the ERCSC. This allows us to substantially improve our control on the contribution of unresolved extragalactic sources to the power spectrum of small-scale fluctuations in cosmic microwave background maps. On the multiple supernova population of Arp 299: constraints on progenitor properties and host galaxy star formation characteristics
Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS
Journal keyword(s): galaxies: active - radio continuum: galaxies - radio continuum: general
VizieR on-line data: <Available at CDS (J/MNRAS/416/559): catalog.dat>
Simbad objects: 172