@article{10902/28529,
year = {2011},
month = {12},
url = {https://hdl.handle.net/10902/28529},
abstract = {Planck?s all-sky surveys at 30?857 GHz provide an unprecedented opportunity to follow the radio spectra of a large sample of extragalactic sources to frequencies 2?20 times higher than allowed by past, large-area, ground-based surveys. We combine the results of the Planck Early Release Compact Source Catalog (ERCSC) with quasi-simultaneous ground-based observations as well as archival data at frequencies below or overlapping Planck frequency bands, to validate the astrometry and photometry of the ERCSC radio sources and study the spectral features shown in this new frequency window opened by Planck. The ERCSC source positions and flux density scales are found to be consistent with the ground-based observations. We present and discuss the spectral energy distributions of a sample of ?extreme? radio sources, to illustrate the richness of the ERCSC for the study of extragalactic radio sources. Variability is found to play a role in the unusual spectral features of some of these sources.},
organization = {A description of the Planck Collaboration and a list of its members can be found at http://www.rssd.esa.int/index.php?project=PLANCK&page=Planck_Collaboration. This paper makes use of
observations obtained at the Very Large Array (VLA) which is an instrument of the National Radio Astronomy Observatory (NRAO). The NRAO is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. This research also makes use of observations with the 100 m telescope of the Max Planck Institut für Radioastronomie (MPIfR), the 30 m telescope of Institut de Radioastronomie Millimétrique (IRAM), the Australia Telescope Compact Array (ATCA) and the 13.7 m telescope of the Metsähovi Radio Observatory. The Metsähovi observing project is supported by the Academy of Finland (grant numbers 212656, 210338 and 121148). We acknowledge the use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. The Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and DEISA (EU).},
publisher = {EDP Sciences},
publisher = {Astronomy and Astrophysics, 2011, 536, A14},
title = {Planck early results. XIV. ERCSC validation and extreme radio sources},
author = {Ade, Peter Anthony Robert and Aghanim, Nabila and Angelakis, E. and Arnaud, M. and Ashdown, Mark and Aumont, J. and Baccigalupi, C. and Balbi, A. and Banday, A. J. and Barreiro Vilas, Rita Belén and Bartlett, J. G. and Battaner, E. and Benabed, K. and Benoît, A. and Bernard, J.-P. and Bersanelli, M. and Herranz Muñoz, Diego and López-Caniego Alcarria, Marcos and Martínez González, Enrique and Vielva Martínez, Patricio},
}