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dc.contributor.authorMassardi, Marcella-
dc.contributor.authorLópez-Caniego, M.-
dc.contributor.authorZotti, G. de-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society 415(2): 1597-1610 (2011)es_ES
dc.description14 páginas, 11 figuras, 6 tablas.-- El Pdf del artículo es la versión pre-print: arXiv:1101.0225v2.-- et al.es_ES
dc.description.abstractThe Planck Australia Telescope Compact Array (Planck-ATCA) Co-eval Observations (PACO) have provided flux density measurements of well-defined samples of Australia Telescope 20 GHz (AT20G) radio sources at frequencies below and overlapping with Planck frequency bands, almost simultaneously with Planck observations. We have observed with the ATCA a total of 482 sources in the frequency range between 4.5 and 40 GHz in the period between 2009 July and 2010 August. Several sources were observed more than once. In this paper we present the aims of the project, the selection criteria, and the observation and data reduction procedures. We also discuss the data in total intensity for a complete sample of 189 sources with S20 GHz > 500 mJy, Galactic latitude |b| > 5° and declination δ < −30°, and some statistical analysis of the spectral behaviour and variability of this sample, referred to as the ‘bright PACO sample’. Finally, we discuss how these data could be used to transfer absolute calibrations to ground-based telescopes using the cosmic microwave background dipole calibrated flux densities measured by the Planck satellite, and we provide some test fluxes on bright calibrators.es_ES
dc.description.sponsorshipMM, AB and GDZ acknowledge financial support from ASI (ASI/INAF Agreement I/072/09/0 for the Planck LFI activity of Phase E2 and contract I/016/07/0 COFIS). MLC acknowledges partial financial support from the Spanish Ministerio de Ciencia e Innovación proyects AYA2010-21766-C03-01 and CSD2010-00064. RDE acknowledges support from an Australian Federation Fellowship (FF0345330).es_ES
dc.subjectGalaxies: activees_ES
dc.subjectCosmic background radiationes_ES
dc.subjectRadio continuum: galaxieses_ES
dc.subjectRadio continuum: generales_ES
dc.titleThe Planck-ATCA Co-eval Observations project: the bright samplees_ES
dc.description.peerreviewedPeer reviewedes_ES
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