Planck early results XIV: ERCSC validation and extreme radio sources
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 (SEDs) 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.
Keywords
Cite
@article{arxiv.1101.1721,
title = {Planck early results XIV: ERCSC validation and extreme radio sources},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and E. Angelakis and M. Arnaud and M. Ashdown and J. Aumont and C. Baccigalupi and A. Balbi and A. J. Banday and R. B. Barreiro and J. G. Bartlett and E. Battaner and K. Benabed and A. Benoît and J. P. Bernard and M. Bersanelli and R. Bhatia and A. Bonaldi and L. Bonavera and J. R. Bond and J. Borrill and F. R. Bouchet and M. Bucher and C. Burigana and P. Cabella and B. Cappellini and J. F. Cardoso and A. Catalano and L. Cayón and A. Challinor and A. Chamballu and R. R. Chary and X. Chen and L. Y Chiang and P. R. Christensen and D. L. Clements and S. Colombi and F. Couchot and A. Coulais and B. P. Crill and F. Cuttaia and L. Danese and R. D. Davies and R. J. Davis and P. de Bernardis and G. de Gasperis and A. de Rosa and G. de Zotti and J. Delabrouille and J. M. Delouis and F. X. Désert and C. Dickinson and S. Donzelli and O. Doré and U. Dörl and M. Douspis and X. Dupac and G. Efstathiou and T. A. Ensslin and F. Finelli and O. Forni and M. Frailis and E. Franceschi and L. Fuhrmann and S. Galeotta and K. Ganga and M. Giard and G. Giardino and Y. Giraud-Héraud and J. González-Nuevo and K. M. Górski and S. Gratton and A. Gregorio and A. Gruppuso and D. Harrison and S. Henrot-Versillé and D. Herranz and S. R. Hildebrandt and E. Hivon and M. Hobson and W. A. Holmes and W. Hovest and R. J. Hoyland and K. M. Huffenberger and M. Huynh and A. H. Jaffe and M. Juvela and E. Keihänen and R. Keskitalo and T. S. Kisner and R. Kneissl and L. Knox and T. P. Krichbaum and H. Kurki-Suonio and G. Lagache and A. Lähteenmäki and J. M. Lamarre and A. Lasenby and R. J. Laureijs and N. Lavonen and C. R. Lawrence and S. Leach and J. P. Leahy and R. Leonardi and M. Linden-Vørnle and M. López-Caniego and P. M. Lubin and J. F. Macías-Pérez and B. Maffei and D. Maino and N. Mandolesi and R. Mann and M. Maris and F. Marleau and E. Martínez-González and S. Masi and M. Massardi and S. Matarrese and F. Matthai and P. Mazzotta and P. R. Meinhold and A. Melchiorri and L. Mendes and A. Mennella and M. Mingaliev and M. A. Miville-Deschênes and A. Moneti and L. Montier and G. Morgante and D. Mortlock and D. Munshi and A. Murphy and P. Naselsky and P. Natoli and I. Nestoras and C. B. Netterfield and E. Nieppola and H. U. Nørgaard-Nielsen and F. Noviello and D. Novikov and I. Novikov and S. Osborne and F. Pajot and B. Partridge and F. Pasian and G. Patanchon and T. J. Pearson and O. Perdereau and L. Perotto and F. Perrotta and F. Piacentini and M. Piat and E. Pierpaoli and S. Plaszczynski and P. Platania and E. Pointecouteau and G. Polenta and N. Ponthieu and T. Poutanen and G. Prézeau and P. Procopio and S. Prunet and J. L. Puget and J. P. Rachen and W. T. Reach and R. Rebolo and M. Reinecke and C. Renault and S. Ricciardi and T. Riller and D. Riquelme and I. Ristorcelli and G. Rocha and C. Rosset and D. Seiffert and A. Sievers and G. F. Smoot and Y. Sotnikova and J. L. Starck and F. Stivoli and V. Stolyarov and R. Sudiwala and J. F. Sygnet and J. Tammi and J. A. Tauber and L. Terenzi and L. Toffolatti and M. Tomasi and M. Tornikoski and J. P. Torre and M. Tristram and J. Tuovinen and M. Türler and M. Turunen and G. Umana and H. Ungerechts and L. Valenziano and J. Varis and P. Vielva and F. Villa and N. Vittorio and L. A. Wade and B. D. Wandelt and A. Wilkinson and D. Yvon and A. Zacchei and J. A. Zensus and A. Zonca},
journal= {arXiv preprint arXiv:1101.1721},
year = {2016}
}
Comments
Revised to accommodate referee's comments. Changes made to sections 5.1 and 5.4. No change in figures or scientific conclusions