Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue

A. Lähteenmäki; T. Poutanen; P. Natoli; G. Polenta; J.G. Bartlett; M. Bucher; J.-F. Cardoso; A. Catalano; J. Delabrouille; K. Ganga; Y. Giraud-Héraud; G. Patanchon; M. Piat; C. Rosset; G.F. Smoot; R. Stompor; M. Ashdown; M. Hobson; A. Lasenby; V. Stolyarov; R. Bhatia; R. Kneissl; L. Bonavera; J.R. Bond; M.-A. Miville-Deschênes; A.J. Banday; J.-P. Bernard; O. Forni; M. Giard; L. Montier; E. Pointecouteau; I. Ristorcelli; O. Doré; S.R. Hildebrandt; R. Paladini; T.J. Pearson; G. Prézeau; G. Rocha; M.D. Seiffert; P.B. Lilje; A. Challinor; P. Shellard; J.-L. Starck; D. Yvon; Michael Linden-Vørnle; Hans Ulrik Nørgaard-Nielsen; L. Toffolatti; F. Argüeso; C.B. Netterfield; S. Serjeant; D. Scott; E. Pierpaoli; M. Juvela; E. Keihänen; R. Keskitalo; H. Kurki-Suonio; T. Poutanen; L. Cayón; G.F. Smoot; L. Knox; R. Leonardi; P.M. Lubin; P.R. Meinhold; A. Zonca; B.D. Wandelt; S. Matarrese; P. De Bernardis; S. Masi; A. Melchiorri; F. Piacentini; M. Bersanelli; D. Maino; A. Mennella; M. Tomasi; A. Gregorio; P. Natoli; A. Balbi; P. Cabella; G. De Gasperis; P. Mazzotta; N. Vittorio; P.R. Christensen; P. Naselsky; R. Rebolo; J.A. Rubiño-Martín; R. Kneissl; X. Dupac; R. Leonardi; L. Mendes; G. Giardino; R.J. Laureijs; R. Leonardi; J.A. Tauber; B. Partridge; A. Sajina; H. Kurki-Suonio; A. Lähteenmäki; T. Poutanen; M. Magliocchetti; G. Umana; A. Bonaldi; G. De Zotti; M. Massardi; S. Colafrancesco; G. Polenta; M. Frailis; S. Galeotta; M. Maris; A. Mennella; F. Pasian; A. Zacchei; C. Burigana; F. Cuttaia; A. De Rosa; F. Finelli; E. Franceschi; A. Gruppuso; N. Mandolesi; G. Morgante; P. Natoli; S. Ricciardi; M. Sandri; L. Terenzi; L. Valenziano; F. Villa; M. Bersanelli; B. Cappellini; S. Donzelli; D. Maino; M. Tomasi; F. Stivoli; F.-X. Désert; M. Türler; A. Chamballu; D.L. Clements; A.H. Jaffe; D. Mortlock; D. Novikov; M. Rowan-Robinson; R.-R. Chary; X. Chen; K. Ganga; T.J. Pearson; B. Rusholme; N. Aghanim; J. Aumont; H. Dole; M. Douspis; G. Lagache; M.-A. Miville-Deschênes; F. Noviello; F. Pajot; N. Ponthieu; J.-L. Puget; J.-P. Torre; K. Benabed; F.R. Bouchet; J.-F. Cardoso; S. Colombi; J.-M. Delouis; E. Hivon; A. Moneti; S. Prunet; J.-F. Sygnet; B.D. Wandelt; L.-Y. Chiang; A. Challinor; G. Efstathiou; S. Gratton; D. Harrison; D. Munshi; S. Donzelli; H.K. Eriksen; F.K. Hansen; P.B. Lilje; S.R. Hildebrandt; R.J. Hoyland; R. Rebolo; J.A. Rubiño-Martín; R.B. Barreiro; D. Herranz; M. López-Caniego; E. Martínez-González; P. Vielva; P. Platania; J.G. Bartlett; B.P. Crill; O. Doré; K.M. Górski; W.A. Holmes; R. Keskitalo; C.R. Lawrence; I.J. O'Dwyer; G. Prézeau; G. Rocha; M.D. Seiffert; L.A. Wade; R.D. Davies; R.J. Davis; C. Dickinson; J.P. Leahy; B. Maffei; A. Wilkinson; M. Ashdown; A. Challinor; S. Gratton; D. Harrison; A. Lasenby; A. Catalano; M. Arnaud; J.-L. Starck; J.-F. Cardoso; S.R. Hildebrandt; J.F. MacÍas-Pérez; L. Perotto; F. Couchot; S. Henrot-Versillé; O. Perdereau; S. Plaszczynski; M. Tristram; J. Borrill; T.S. Kisner; G.F. Smoot; A.J. Banday; U. Dörl; T.A. Enßlin; W. Hovest; F. Matthai; J.P. Rachen; M. Reinecke; T. Riller; J. Tuovinen; J. Varis; A. Murphy; P.R. Christensen; P. Naselsky; I. Novikov; B.P. Crill; C. Baccigalupi; L. Bonavera; L. Danese; G. De Zotti; J. González-Nuevo; S. Leach; F. Perrotta; R. Mann; P.A.R. Ade; D. Munshi; R. Sudiwala; J. Borrill; R. Paladini; S. Osborne; A.J. Banday; J.-P. Bernard; O. Forni; M. Giard; L. Montier; E. Pointecouteau; I. Ristorcelli; E. Battaner; K.M. Huffenberger; K.M. Górski

doi:10.1051/0004-6361/201116471

Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue

A. Lähteenmäki
, T. Poutanen
, P. Natoli
, G. Polenta
, J.G. Bartlett
, M. Bucher
, J.-F. Cardoso
, A. Catalano
, J. Delabrouille
, K. Ganga
, Y. Giraud-Héraud
, G. Patanchon
, M. Piat
, C. Rosset
, G.F. Smoot
, R. Stompor
, M. Ashdown
, M. Hobson
, A. Lasenby
, V. Stolyarov

R. Bhatia, R. Kneissl, L. Bonavera, J.R. Bond, M.-A. Miville-Deschênes, A.J. Banday, J.-P. Bernard, O. Forni, M. Giard, L. Montier, E. Pointecouteau, I. Ristorcelli, O. Doré, S.R. Hildebrandt, R. Paladini, T.J. Pearson, G. Prézeau, G. Rocha, M.D. Seiffert, P.B. Lilje, A. Challinor, P. Shellard, J.-L. Starck, D. Yvon, Michael Linden-Vørnle, Hans Ulrik Nørgaard-Nielsen, L. Toffolatti, F. Argüeso, C.B. Netterfield, S. Serjeant, D. Scott, E. Pierpaoli, M. Juvela, E. Keihänen, R. Keskitalo, H. Kurki-Suonio, T. Poutanen, L. Cayón, G.F. Smoot, L. Knox, R. Leonardi, P.M. Lubin, P.R. Meinhold, A. Zonca, B.D. Wandelt, S. Matarrese, P. De Bernardis, S. Masi, A. Melchiorri, F. Piacentini, M. Bersanelli, D. Maino, A. Mennella, M. Tomasi, A. Gregorio, P. Natoli, A. Balbi, P. Cabella, G. De Gasperis, P. Mazzotta, N. Vittorio, P.R. Christensen, P. Naselsky, R. Rebolo, J.A. Rubiño-Martín, R. Kneissl, X. Dupac, R. Leonardi, L. Mendes, G. Giardino, R.J. Laureijs, R. Leonardi, J.A. Tauber, B. Partridge, A. Sajina, H. Kurki-Suonio, A. Lähteenmäki, T. Poutanen, M. Magliocchetti, G. Umana, A. Bonaldi, G. De Zotti, M. Massardi, S. Colafrancesco, G. Polenta, M. Frailis, S. Galeotta, M. Maris, A. Mennella, F. Pasian, A. Zacchei, C. Burigana, F. Cuttaia, A. De Rosa, F. Finelli, E. Franceschi, A. Gruppuso, N. Mandolesi, G. Morgante, P. Natoli, S. Ricciardi, M. Sandri, L. Terenzi, L. Valenziano, F. Villa, M. Bersanelli, B. Cappellini, S. Donzelli, D. Maino, M. Tomasi, F. Stivoli, F.-X. Désert, M. Türler, A. Chamballu, D.L. Clements, A.H. Jaffe, D. Mortlock, D. Novikov, M. Rowan-Robinson, R.-R. Chary, X. Chen, K. Ganga, T.J. Pearson, B. Rusholme, N. Aghanim, J. Aumont, H. Dole, M. Douspis, G. Lagache, M.-A. Miville-Deschênes, F. Noviello, F. Pajot, N. Ponthieu, J.-L. Puget, J.-P. Torre, K. Benabed, F.R. Bouchet, J.-F. Cardoso, S. Colombi, J.-M. Delouis, E. Hivon, A. Moneti, S. Prunet, J.-F. Sygnet, B.D. Wandelt, L.-Y. Chiang, A. Challinor, G. Efstathiou, S. Gratton, D. Harrison, D. Munshi, S. Donzelli, H.K. Eriksen, F.K. Hansen, P.B. Lilje, S.R. Hildebrandt, R.J. Hoyland, R. Rebolo, J.A. Rubiño-Martín, R.B. Barreiro, D. Herranz, M. López-Caniego, E. Martínez-González, P. Vielva, P. Platania, J.G. Bartlett, B.P. Crill, O. Doré, K.M. Górski, W.A. Holmes, R. Keskitalo, C.R. Lawrence, I.J. O'Dwyer, G. Prézeau, G. Rocha, M.D. Seiffert, L.A. Wade, R.D. Davies, R.J. Davis, C. Dickinson, J.P. Leahy, B. Maffei, A. Wilkinson, M. Ashdown, A. Challinor, S. Gratton, D. Harrison, A. Lasenby, A. Catalano, M. Arnaud, J.-L. Starck, J.-F. Cardoso, S.R. Hildebrandt, J.F. MacÍas-Pérez, L. Perotto, F. Couchot, S. Henrot-Versillé, O. Perdereau, S. Plaszczynski, M. Tristram, J. Borrill, T.S. Kisner, G.F. Smoot, A.J. Banday, U. Dörl, T.A. Enßlin, W. Hovest, F. Matthai, J.P. Rachen, M. Reinecke, T. Riller, J. Tuovinen, J. Varis, A. Murphy, P.R. Christensen, P. Naselsky, I. Novikov, B.P. Crill, C. Baccigalupi, L. Bonavera, L. Danese, G. De Zotti, J. González-Nuevo, S. Leach, F. Perrotta, R. Mann, P.A.R. Ade, D. Munshi, R. Sudiwala, J. Borrill, R. Paladini, S. Osborne, A.J. Banday, J.-P. Bernard, O. Forni, M. Giard, L. Montier, E. Pointecouteau, I. Ristorcelli, E. Battaner, K.M. Huffenberger, K.M. Górski

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Abstract

The data reported in Planck's Early Release Compact Source Catalogue (ERCSC) are exploited to measure the number counts (dN/dS) of extragalactic radio sources at 30, 44, 70, 100, 143 and 217 GHz. Due to the full-sky nature of the catalogue, this measurement extends to the rarest and brightest sources in the sky. At lower frequencies (30, 44, and 70 GHz) our counts are in very good agreement with estimates based on WMAP data, being somewhat deeper at 30 and 70 GHz, and somewhat shallower at 44 GHz. Planck's source counts at 143 and 217 GHz join smoothly with the fainter ones provided by the SPT and ACT surveys over small fractions of the sky. An analysis of source spectra, exploiting Planck's uniquely broad spectral coverage, finds clear evidence of a steepening of the mean spectral index above about 70 GHz. This implies that, at these frequencies, the contamination of the CMB power spectrum by radio sources below the detection limit is significantly lower than previously estimated. © ESO, 2011.

Original language	English
Journal	Astronomy and Astrophysics
Volume	536
Pages (from-to)	A13
ISSN	0004-6361
DOIs	https://doi.org/10.1051/0004-6361/201116471
Publication status	Published - 2011

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Lähteenmäki, A., Poutanen, T., Natoli, P., Polenta, G., Bartlett, J. G., Bucher, M., Cardoso, J.-F., Catalano, A., Delabrouille, J., Ganga, K., Giraud-Héraud, Y., Patanchon, G., Piat, M., Rosset, C., Smoot, G. F., Stompor, R., Ashdown, M., Hobson, M., Lasenby, A., ... Górski, K. M. (2011). Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue. Astronomy and Astrophysics, 536, A13. https://doi.org/10.1051/0004-6361/201116471

@article{8728d32e41bb449faa0979ba51b2a6ac,

title = "Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue",

abstract = "The data reported in Planck's Early Release Compact Source Catalogue (ERCSC) are exploited to measure the number counts (dN/dS) of extragalactic radio sources at 30, 44, 70, 100, 143 and 217 GHz. Due to the full-sky nature of the catalogue, this measurement extends to the rarest and brightest sources in the sky. At lower frequencies (30, 44, and 70 GHz) our counts are in very good agreement with estimates based on WMAP data, being somewhat deeper at 30 and 70 GHz, and somewhat shallower at 44 GHz. Planck's source counts at 143 and 217 GHz join smoothly with the fainter ones provided by the SPT and ACT surveys over small fractions of the sky. An analysis of source spectra, exploiting Planck's uniquely broad spectral coverage, finds clear evidence of a steepening of the mean spectral index above about 70 GHz. This implies that, at these frequencies, the contamination of the CMB power spectrum by radio sources below the detection limit is significantly lower than previously estimated. {\textcopyright} ESO, 2011.",

author = "A. L{\"a}hteenm{\"a}ki and T. Poutanen and P. Natoli and G. Polenta and J.G. Bartlett and M. Bucher and J.-F. Cardoso and A. Catalano and J. Delabrouille and K. Ganga and Y. Giraud-H{\'e}raud and G. Patanchon and M. Piat and C. Rosset and G.F. Smoot and R. Stompor and M. Ashdown and M. Hobson and A. Lasenby and V. Stolyarov and R. Bhatia and R. Kneissl and L. Bonavera and J.R. Bond and M.-A. Miville-Desch{\^e}nes and A.J. Banday and J.-P. Bernard and O. Forni and M. Giard and L. Montier and E. Pointecouteau and I. Ristorcelli and O. Dor{\'e} and S.R. Hildebrandt and R. Paladini and T.J. Pearson and G. Pr{\'e}zeau and G. Rocha and M.D. Seiffert and P.B. Lilje and A. Challinor and P. Shellard and J.-L. Starck and D. Yvon and Michael Linden-V{\o}rnle and N{\o}rgaard-Nielsen, \{Hans Ulrik\} and L. Toffolatti and F. Arg{\"u}eso and C.B. Netterfield and S. Serjeant and D. Scott and E. Pierpaoli and M. Juvela and E. Keih{\"a}nen and R. Keskitalo and H. Kurki-Suonio and T. Poutanen and L. Cay{\'o}n and G.F. Smoot and L. Knox and R. Leonardi and P.M. Lubin and P.R. Meinhold and A. Zonca and B.D. Wandelt and S. Matarrese and \{De Bernardis\}, P. and S. Masi and A. Melchiorri and F. Piacentini and M. Bersanelli and D. Maino and A. Mennella and M. Tomasi and A. Gregorio and P. Natoli and A. Balbi and P. Cabella and \{De Gasperis\}, G. and P. Mazzotta and N. Vittorio and P.R. Christensen and P. Naselsky and R. Rebolo and J.A. Rubi{\~n}o-Mart{\'i}n and R. Kneissl and X. Dupac and R. Leonardi and L. Mendes and G. Giardino and R.J. Laureijs and R. Leonardi and J.A. Tauber and B. Partridge and A. Sajina and H. Kurki-Suonio and A. L{\"a}hteenm{\"a}ki and T. Poutanen and M. Magliocchetti and G. Umana and A. Bonaldi and \{De Zotti\}, G. and M. Massardi and S. Colafrancesco and G. Polenta and M. Frailis and S. Galeotta and M. Maris and A. Mennella and F. Pasian and A. Zacchei and C. Burigana and F. Cuttaia and \{De Rosa\}, A. and F. Finelli and E. Franceschi and A. Gruppuso and N. Mandolesi and G. Morgante and P. Natoli and S. Ricciardi and M. Sandri and L. Terenzi and L. Valenziano and F. Villa and M. Bersanelli and B. Cappellini and S. Donzelli and D. Maino and M. Tomasi and F. Stivoli and F.-X. D{\'e}sert and M. T{\"u}rler and A. Chamballu and D.L. Clements and A.H. Jaffe and D. Mortlock and D. Novikov and M. Rowan-Robinson and R.-R. Chary and X. Chen and K. Ganga and T.J. Pearson and B. Rusholme and N. Aghanim and J. Aumont and H. Dole and M. Douspis and G. Lagache and M.-A. Miville-Desch{\^e}nes and F. Noviello and F. Pajot and N. Ponthieu and J.-L. Puget and J.-P. Torre and K. Benabed and F.R. Bouchet and J.-F. Cardoso and S. Colombi and J.-M. Delouis and E. Hivon and A. Moneti and S. Prunet and J.-F. Sygnet and B.D. Wandelt and L.-Y. Chiang and A. Challinor and G. Efstathiou and S. Gratton and D. Harrison and D. Munshi and S. Donzelli and H.K. Eriksen and F.K. Hansen and P.B. Lilje and S.R. Hildebrandt and R.J. Hoyland and R. Rebolo and J.A. Rubi{\~n}o-Mart{\'i}n and R.B. Barreiro and D. Herranz and M. L{\'o}pez-Caniego and E. Mart{\'i}nez-Gonz{\'a}lez and P. Vielva and P. Platania and J.G. Bartlett and B.P. Crill and O. Dor{\'e} and K.M. G{\'o}rski and W.A. Holmes and R. Keskitalo and C.R. Lawrence and I.J. O'Dwyer and G. Pr{\'e}zeau and G. Rocha and M.D. Seiffert and L.A. Wade and R.D. Davies and R.J. Davis and C. Dickinson and J.P. Leahy and B. Maffei and A. Wilkinson and M. Ashdown and A. Challinor and S. Gratton and D. Harrison and A. Lasenby and A. Catalano and M. Arnaud and J.-L. Starck and J.-F. Cardoso and S.R. Hildebrandt and J.F. Mac{\'I}as-P{\'e}rez and L. Perotto and F. Couchot and S. Henrot-Versill{\'e} and O. Perdereau and S. Plaszczynski and M. Tristram and J. Borrill and T.S. Kisner and G.F. Smoot and A.J. Banday and U. D{\"o}rl and T.A. En{\ss}lin and W. Hovest and F. Matthai and J.P. Rachen and M. Reinecke and T. Riller and J. Tuovinen and J. Varis and A. Murphy and P.R. Christensen and P. Naselsky and I. Novikov and B.P. Crill and C. Baccigalupi and L. Bonavera and L. Danese and \{De Zotti\}, G. and J. Gonz{\'a}lez-Nuevo and S. Leach and F. Perrotta and R. Mann and P.A.R. Ade and D. Munshi and R. Sudiwala and J. Borrill and R. Paladini and S. Osborne and A.J. Banday and J.-P. Bernard and O. Forni and M. Giard and L. Montier and E. Pointecouteau and I. Ristorcelli and E. Battaner and K.M. Huffenberger and K.M. G{\'o}rski",

year = "2011",

doi = "10.1051/0004-6361/201116471",

language = "English",

volume = "536",

pages = "A13",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Lähteenmäki, A, Poutanen, T, Natoli, P, Polenta, G, Bartlett, JG, Bucher, M, Cardoso, J-F, Catalano, A, Delabrouille, J, Ganga, K, Giraud-Héraud, Y, Patanchon, G, Piat, M, Rosset, C, Smoot, GF, Stompor, R, Ashdown, M, Hobson, M, Lasenby, A, Stolyarov, V, Bhatia, R, Kneissl, R, Bonavera, L, Bond, JR, Miville-Deschênes, M-A, Banday, AJ, Bernard, J-P, Forni, O, Giard, M, Montier, L, Pointecouteau, E, Ristorcelli, I, Doré, O, Hildebrandt, SR, Paladini, R, Pearson, TJ, Prézeau, G, Rocha, G, Seiffert, MD, Lilje, PB, Challinor, A, Shellard, P, Starck, J-L, Yvon, D, Linden-Vørnle, M, Nørgaard-Nielsen, HU, Toffolatti, L, Argüeso, F, Netterfield, CB, Serjeant, S, Scott, D, Pierpaoli, E, Juvela, M, Keihänen, E, Keskitalo, R, Kurki-Suonio, H, Poutanen, T, Cayón, L, Smoot, GF, Knox, L, Leonardi, R, Lubin, PM, Meinhold, PR, Zonca, A, Wandelt, BD, Matarrese, S, De Bernardis, P, Masi, S, Melchiorri, A, Piacentini, F, Bersanelli, M, Maino, D, Mennella, A, Tomasi, M, Gregorio, A, Natoli, P, Balbi, A, Cabella, P, De Gasperis, G, Mazzotta, P, Vittorio, N, Christensen, PR, Naselsky, P, Rebolo, R, Rubiño-Martín, JA, Kneissl, R, Dupac, X, Leonardi, R, Mendes, L, Giardino, G, Laureijs, RJ, Leonardi, R, Tauber, JA, Partridge, B, Sajina, A, Kurki-Suonio, H, Lähteenmäki, A, Poutanen, T, Magliocchetti, M, Umana, G, Bonaldi, A, De Zotti, G, Massardi, M, Colafrancesco, S, Polenta, G, Frailis, M, Galeotta, S, Maris, M, Mennella, A, Pasian, F, Zacchei, A, Burigana, C, Cuttaia, F, De Rosa, A, Finelli, F, Franceschi, E, Gruppuso, A, Mandolesi, N, Morgante, G, Natoli, P, Ricciardi, S, Sandri, M, Terenzi, L, Valenziano, L, Villa, F, Bersanelli, M, Cappellini, B, Donzelli, S, Maino, D, Tomasi, M, Stivoli, F, Désert, F-X, Türler, M, Chamballu, A, Clements, DL, Jaffe, AH, Mortlock, D, Novikov, D, Rowan-Robinson, M, Chary, R-R, Chen, X, Ganga, K, Pearson, TJ, Rusholme, B, Aghanim, N, Aumont, J, Dole, H, Douspis, M, Lagache, G, Miville-Deschênes, M-A, Noviello, F, Pajot, F, Ponthieu, N, Puget, J-L, Torre, J-P, Benabed, K, Bouchet, FR, Cardoso, J-F, Colombi, S, Delouis, J-M, Hivon, E, Moneti, A, Prunet, S, Sygnet, J-F, Wandelt, BD, Chiang, L-Y, Challinor, A, Efstathiou, G, Gratton, S, Harrison, D, Munshi, D, Donzelli, S, Eriksen, HK, Hansen, FK, Lilje, PB, Hildebrandt, SR, Hoyland, RJ, Rebolo, R, Rubiño-Martín, JA, Barreiro, RB, Herranz, D, López-Caniego, M, Martínez-González, E, Vielva, P, Platania, P, Bartlett, JG, Crill, BP, Doré, O, Górski, KM, Holmes, WA, Keskitalo, R, Lawrence, CR, O'Dwyer, IJ, Prézeau, G, Rocha, G, Seiffert, MD, Wade, LA, Davies, RD, Davis, RJ, Dickinson, C, Leahy, JP, Maffei, B, Wilkinson, A, Ashdown, M, Challinor, A, Gratton, S, Harrison, D, Lasenby, A, Catalano, A, Arnaud, M, Starck, J-L, Cardoso, J-F, Hildebrandt, SR, MacÍas-Pérez, JF, Perotto, L, Couchot, F, Henrot-Versillé, S, Perdereau, O, Plaszczynski, S, Tristram, M, Borrill, J, Kisner, TS, Smoot, GF, Banday, AJ, Dörl, U, Enßlin, TA, Hovest, W, Matthai, F, Rachen, JP, Reinecke, M, Riller, T, Tuovinen, J, Varis, J, Murphy, A, Christensen, PR, Naselsky, P, Novikov, I, Crill, BP, Baccigalupi, C, Bonavera, L, Danese, L, De Zotti, G, González-Nuevo, J, Leach, S, Perrotta, F, Mann, R, Ade, PAR, Munshi, D, Sudiwala, R, Borrill, J, Paladini, R, Osborne, S, Banday, AJ, Bernard, J-P, Forni, O, Giard, M, Montier, L, Pointecouteau, E, Ristorcelli, I, Battaner, E, Huffenberger, KM & Górski, KM 2011, 'Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue', Astronomy and Astrophysics, vol. 536, pp. A13. https://doi.org/10.1051/0004-6361/201116471

TY - JOUR

T1 - Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue

AU - Lähteenmäki, A.

AU - Poutanen, T.

AU - Natoli, P.

AU - Polenta, G.

AU - Bartlett, J.G.

AU - Bucher, M.

AU - Cardoso, J.-F.

AU - Catalano, A.

AU - Delabrouille, J.

AU - Ganga, K.

AU - Giraud-Héraud, Y.

AU - Patanchon, G.

AU - Piat, M.

AU - Rosset, C.

AU - Smoot, G.F.

AU - Stompor, R.

AU - Ashdown, M.

AU - Hobson, M.

AU - Lasenby, A.

AU - Stolyarov, V.

AU - Bhatia, R.

AU - Kneissl, R.

AU - Bonavera, L.

AU - Bond, J.R.

AU - Miville-Deschênes, M.-A.

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PY - 2011

Y1 - 2011

N2 - The data reported in Planck's Early Release Compact Source Catalogue (ERCSC) are exploited to measure the number counts (dN/dS) of extragalactic radio sources at 30, 44, 70, 100, 143 and 217 GHz. Due to the full-sky nature of the catalogue, this measurement extends to the rarest and brightest sources in the sky. At lower frequencies (30, 44, and 70 GHz) our counts are in very good agreement with estimates based on WMAP data, being somewhat deeper at 30 and 70 GHz, and somewhat shallower at 44 GHz. Planck's source counts at 143 and 217 GHz join smoothly with the fainter ones provided by the SPT and ACT surveys over small fractions of the sky. An analysis of source spectra, exploiting Planck's uniquely broad spectral coverage, finds clear evidence of a steepening of the mean spectral index above about 70 GHz. This implies that, at these frequencies, the contamination of the CMB power spectrum by radio sources below the detection limit is significantly lower than previously estimated. © ESO, 2011.

AB - The data reported in Planck's Early Release Compact Source Catalogue (ERCSC) are exploited to measure the number counts (dN/dS) of extragalactic radio sources at 30, 44, 70, 100, 143 and 217 GHz. Due to the full-sky nature of the catalogue, this measurement extends to the rarest and brightest sources in the sky. At lower frequencies (30, 44, and 70 GHz) our counts are in very good agreement with estimates based on WMAP data, being somewhat deeper at 30 and 70 GHz, and somewhat shallower at 44 GHz. Planck's source counts at 143 and 217 GHz join smoothly with the fainter ones provided by the SPT and ACT surveys over small fractions of the sky. An analysis of source spectra, exploiting Planck's uniquely broad spectral coverage, finds clear evidence of a steepening of the mean spectral index above about 70 GHz. This implies that, at these frequencies, the contamination of the CMB power spectrum by radio sources below the detection limit is significantly lower than previously estimated. © ESO, 2011.

U2 - 10.1051/0004-6361/201116471

DO - 10.1051/0004-6361/201116471

M3 - Journal article

SN - 0004-6361

VL - 536

SP - A13

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue

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