دورية أكاديمية
Planck intermediate results : XXX : the angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes
| العنوان: | Planck intermediate results : XXX : the angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes |
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| المؤلفون: | R. Adam, P. A. R. Ade, N. Aghanim, M. Arnaud, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, J. G. Bartlett, N. Bartolo, E. Battaner, K. Benabed, A. Benoit Lévy, J. P. Bernard, P. Bielewicz, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, A. Bracco, M. Bucher, C. Burigana, R. C. Butler, E. Calabrese, J. F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, R. R. Chary, H. C. Chiang, P. R. Christensen, D. L. Clements, S. Colombi, L. P. L. Colombo, C. Combet, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, L. Danese, R. D. Davies, R. J. Davis, P. De Bernardis, G. De Zotti, J. Delabrouille, J. M. Delouis, F. X. Désert, C. Dickinson, J. M. Diego, K. Dolag, H. Dole, S. Donzelli, O. Doré, M. Douspis, A. Ducout, J. Dunkley, X. Dupac, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, F. Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S. Galeotta, S. Galli, K. Ganga, T. Ghosh, M. Giard, Y. Giraud Héraud, E. Gjerløw, J. González Nuevo, K. M. Górski, S. Gratton, A. Gregorio, A. Gruppuso, V. Guillet, F. K. Hansen, D. Hanson, D. L. Harrison, G. Helou, S. Henrot Versillé, C. Hernández Monteagudo, D. Herranz, E. Hivon, M. Hobson, W. A. Holmes, K. M. Huffenberger, G. Hurier, A. H. Jaffe, T. R. Jaffe, J. Jewell, W. C. Jones, M. Juvela, E. Keihänen, R. Keskitalo, T. S. Kisner, R. Kneissl, J. Knoche, L. Knox, N. Krachmalnicoff, M. Kunz, H. Kurki Suonio, G. Lagache, J. M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, J. P. Leahy, R. Leonardi, J. Lesgourgues, F. Levrier, M. Liguori, P. B. Lilje, M. Linden Vørnle, M. López Caniego, P. M. Lubin, J. F. Macías Pérez, B. Maffei, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez González, S. Masi, S. Matarrese, P. Mazzotta, P. R. Meinhold, A. Melchiorri, L. Mendes, M. Migliaccio, S. Mitra, M. A. Miville Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, A. Moss, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, C. B. Netterfield, H. U. Nørgaard Nielsen, F. Noviello, D. Novikov, I. Novikov, L. Pagano, F. Pajot, R. Paladini, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, T. J. Pearson, O. Perdereau, L. Perotto, F. Perrotta, V. Pettorino, F. Piacentini, M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, N. Ponthieu, L. Popa, G. W. Pratt, S. Prunet, J. L. Puget, J. P. Rachen, W. T. Reach, R. Rebolo, M. Remazeilles, C. Renault, A. Renzi, S. Ricciardi, I. Ristorcelli, G. Rocha, C. Rosset, M. Rossetti, G. Roudier, B. Rouillé D'Orfeuil, J. A. Rubiño Martín, B. Rusholme, M. Sandri, D. Santos, M. Savelainen, G. Savini, D. Scott, J. D. Soler, L. D. Spencer, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, D. Sutton, A. S. Suur Uski, J. F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tristram, M. Tucci, J. Tuovinen, L. Valenziano, J. Valiviita, B. Van Tent, L. Vibert, P. Vielva, F. Villa, L. A. Wade, B. D. Wandelt, R. Watson, I. K. Wehus, M. White, S. D. M. White, D. Yvon, A. Zacchei, A. Zonca, M. Bersanelli, D. Maino, A. Mennella, M. Tomasi |
| المساهمون: | R. Adam, P.A.R. Ade, N. Aghanim, M. Arnaud, J. Aumont, C. Baccigalupi, A.J. Banday, R.B. Barreiro, J.G. Bartlett, N. Bartolo, E. Battaner, K. Benabed, A. Benoit Lévy, J.P. Bernard, M. Bersanelli, P. Bielewicz, A. Bonaldi, L. Bonavera, J.R. Bond, J. Borrill, F.R. Bouchet, F. Boulanger, A. Bracco, M. Bucher, C. Burigana, R.C. Butler, E. Calabrese, J.F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, R.R. Chary, H.C. Chiang, P.R. Christensen, D.L. Clement, S. Colombi, L.P.L. Colombo, C. Combet, F. Couchot, A. Coulai, B.P. Crill, A. Curto, F. Cuttaia, L. Danese, R.D. Davie, R.J. Davi, P. De Bernardi, G. De Zotti, J. Delabrouille, J.M. Deloui, F.X. Désert, C. Dickinson, J.M. Diego, K. Dolag, H. Dole, S. Donzelli, O. Doré, M. Douspi, A. Ducout, J. Dunkley, X. Dupac, G. Efstathiou, F. Elsner, T.A. Enßlin, H.K. Eriksen, E. Falgarone, F. Finelli, O. Forni, M. Fraili, A.A. Fraisse, E. Franceschi, A. Frejsel, S. Galeotta, S. Galli, K. Ganga, T. Ghosh, M. Giard, Y. Giraud Héraud, E. Gjerløw, J. González Nuevo, K.M. Górski, S. Gratton, A. Gregorio, A. Gruppuso, V. Guillet, F.K. Hansen, D. Hanson, D.L. Harrison, G. Helou, S. Henrot Versillé, C. Hernández Monteagudo, D. Herranz, E. Hivon, M. Hobson, W.A. Holme, K.M. Huffenberger, G. Hurier, A.H. Jaffe, T.R. Jaffe, J. Jewell |
| بيانات النشر: | EDP Sciences |
| سنة النشر: | 2016 |
| المجموعة: | The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
| مصطلحات موضوعية: | cosmic background radiation, cosmology: observation, ISM: structure, ISM: magnetic field, polarization, Settore FIS/05 - Astronomia e Astrofisica |
| الوصف: | The polarized thermal emission from diffuse Galactic dust is the main foreground present in measurements of the polarization of the cosmic microwave background (CMB) at frequencies above 100 GHz. In this paper we exploit the uniqueness of the Planck HFI polarization data from 100 to 353 GHz to measure the polarized dust angular power spectra CℓEE and CℓBB over the multipole range 40 < ℓ < 600 well away from the Galactic plane. These measurements will bring new insights into interstellar dust physics and allow a precise determination of the level of contamination for CMB polarization experiments. Despite the non-Gaussian and anisotropic nature of Galactic dust, we show that general statistical properties of the emission can be characterized accurately over large fractions of the sky using angular power spectra. The polarization power spectra of the dust are well described by power laws in multipole, Cℓ ∝ ℓα, with exponents αEE,BB = -2.42 ± 0.02. The amplitudes of the polarization power spectra vary with the average brightness in a way similar to the intensity power spectra. The frequency dependence of the dust polarization spectra is consistent with modified blackbody emission with βd = 1.59 and Td = 19.6 K down to the lowest Planck HFI frequencies. We find a systematic difference between the amplitudes of the Galactic B- and E-modes, CℓBB/CℓEE = 0.5. We verify that these general properties are preserved towards high Galactic latitudes with low dust column densities. We show that even in the faintest dust-emitting regions there are no "clean" windows in the sky where primordial CMB B-mode polarization measurements could be made without subtraction of foreground emission. Finally, we investigate the level of dust polarization in the specific field recently targeted by the BICEP2 experiment. Extrapolation of the Planck 353 GHz data to 150 GHz gives a dust power DℓBB ≡ ℓ(ℓ +1)CℓBB/(2π) of 1.32 × 10-2 μKCMB2 over the multipole range of the primordial recombination bump (40 < ℓ < 120); the statistical ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000369715900143; volume:586; firstpage:1; lastpage:25; numberofpages:25; journal:ASTRONOMY & ASTROPHYSICS; http://hdl.handle.net/2434/387624Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84958967480 |
| DOI: | 10.1051/0004-6361/201425034 |
| الإتاحة: | https://doi.org/10.1051/0004-6361/201425034Test http://hdl.handle.net/2434/387624Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.F577E83 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1051/0004-6361/201425034 |
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