A1 Refereed original research article in a scientific journal
Planck early results. XIV. ERCSC validation and extreme radio sources
Authors: Ade PAR, Aghanim N, Angelakis E, Arnaud M, Ashdown M, Aumont J, Baccigalupi C, Balbi A, Banday AJ, Barreiro RB, Bartlett JG, Battaner E, Benabed K, Benoit A, Bernard JP, Bersanelli M, Bhatia R, Bonaldi A, Bonavera L, Bond JR, Borrill J, Bouchet FR, Bucher M, Burigana C, Cabella P, Cappellini B, Cardoso JF, Catalano A, Cayon L, Challinor A, Chamballu A, Chary RR, Chen X, Chiang LY, Christensen PR, Clements DL, Colombi S, Couchot F, Coulais A, Crill BP, Cuttaia F, Danese L, Davies RD, Davis RJ, de Bernardis P, de Gasperis G, de Rosa A, de Zotti G, Delabrouille J, Delouis JM, Desert FX, Dickinson C, Donzelli S, Dore O, Dorl U, Douspis M, Dupac X, Efstathiou G, Ensslin TA, Finelli F, Forni O, Frailis M, Franceschi E, Fuhrmann L, Galeotta S, Ganga K, Giard M, Giardino G, Giraud-Heraud Y, Gonzalez-Nuevo J, Gorski KM, Gratton S, Gregorio A, Gruppuso A, Harrison D, Henrot-Versille S, Herranz D, Hildebrandt SR, Hivon E, Hobson M, Holmes WA, Hovest W, Hoyland RJ, Huffenberger KM, Huynh M, Jaffe AH, Juvela M, Keihanen E, Keskitalo R, Kisner TS, Kneissl R, Knox L, Krichbaum TP, Kurki-Suonio H, Lagache G, Lahteenmaki A, Lamarre JM, Lasenby A, Laureijs RJ, Lavonen N, Lawrence CR, Leach S, Leahy JP, Leonardi R, Leon-Tavares J, Linden-Vornle M, Lopez-Caniego M, Lubin PM, Macias-Perez JF, Maffei B, Maino D, Mandolesi N, Mann R, Maris M, Marleau F, Martinez-Gonzalez E, Masi S, Massardi M, Matarrese S, Matthai F, Mazzotta P, Meinhold PR, Melchiorri A, Mendes L, Mennella A, Mingaliev M, Miville-Deschenes MA, Moneti A, Montier L, Morgante G, Mortlock D, Munshi D, Murphy A, Naselsky P, Natoli P, Nestoras I, Netterfield CB, Nieppola E, Norgaard-Nielsen HU, Noviello F, Novikov D, Novikov I, Osborne S, Pajot F, Paladini R, Partridge B, Pasian F, Patanchon G, Pearson TJ, Perdereau O, Perotto L, Perrotta F, Piacentini F, Piat M, Pierpaoli E, Plaszczynski S, Platania P, Pointecouteau E, Polenta G, Ponthieu N, Poutanen T, Prezeau G, Procopio P, Prunet S, Puget JL, Rachen JP, Reach WT, Rebolo R, Reinecke M, Renault C, Ricciardi S, Riller T, Riquelme D, Ristorcelli I, Rocha G, Rosset C, Rowan-Robinson M, Rubino-Martin JA, Rusholme B, Sajina A, Sandri M, Savolainen P, Scott D, Seiffert MD, Sievers A, Smoot GF, Sotnikova Y, Starck JL, Stivoli F, Stolyarov V, Sudiwala R, Sygnet JF, Tammi J, Tauber JA, Terenzi L, Toffolatti L, Tomasi M, Tornikoski M, Torre JP, Tristram M, Tuovinen J, Turler M, Turunen M, Umana G, Ungerechts H, Valenziano L, Varis J, Vielva P, Villa F, Vittorio N, Wade LA, Wandelt BD, Wilkinson A, Yvon D, Zacchei A, Zensus JA, Zonca A
Publisher: EDP SCIENCES S A
Publication year: 2011
Journal:: Astronomy and Astrophysics
Journal name in source: ASTRONOMY & ASTROPHYSICS
Journal acronym: ASTRON ASTROPHYS
Article number: ARTN A14
Volume: 536
Number of pages: 18
ISSN: 0004-6361
DOI: https://doi.org/10.1051/0004-6361/201116475
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.
