Accueil > Planck 2015 results. XXV. Diffuse low-frequency Galactic foregrounds |
Article | |
Report number | arXiv:1506.06660 |
Title | Planck 2015 results. XXV. Diffuse low-frequency Galactic foregrounds |
Author(s) |
Ade, P.A.R. (Cardiff U.) ; Aghanim, N. (Orsay) ; Alves, M.I.R. (Orsay) ; Arnaud, M. (DAPNIA, Saclay) ; Ashdown, M. (Cambridge U., KICC ; Cambridge U.) ; Aumont, J. (Orsay) ; Baccigalupi, C. (SISSA, Trieste) ; Banday, A.J. (Toulouse III U. ; IRAP, Toulouse) ; Barreiro, R.B. (Cantabria Inst. of Phys.) ; Bartlett, J.G. (APC, Paris ; Caltech) ; Bartolo, N. (Padua U. ; INFN, Padua) ; Battaner, E. (Granada U.) ; Benabed, K. (Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Benoit, A. (Neel Lab, Grenoble) ; Benoit-Levy, A. (University Coll. London ; Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Bernard, J.P. (Toulouse III U. ; IRAP, Toulouse) ; Bersanelli, M. (Milan U. ; Brera Observ.) ; Bielewicz, P. (Warsaw, Copernicus Astron. Ctr. ; IRAP, Toulouse ; SISSA, Trieste) ; Bock, J.J. (Caltech) ; Bonaldi, A. (Manchester U.) ; Bonavera, L. (Cantabria Inst. of Phys.) ; Bond, J.R. (Canadian Inst. Theor. Astrophys.) ; Borrill, J. (LBL, Berkeley ; UC, Berkeley) ; Bouchet, F.R. (Paris, Inst. Astrophys.) ; Boulanger, F. (Orsay) ; Bucher, M. (APC, Paris) ; Burigana, C. (Bologna Observ. ; Ferrara U. ; INFN, Bologna) ; Butler, R.C. (Bologna Observ.) ; Calabrese, E. (Oxford U.) ; Cardoso, J.F. (LTCI, Paris ; APC, Paris ; Paris, Inst. Astrophys.) ; Catalano, A. (LPSC, Grenoble ; LERMA, Ivry) ; Challinor, A. (Cambridge U., Inst. of Astron. ; Cambridge U., KICC ; Cambridge U., DAMTP) ; Chamballu, A. (DAPNIA, Saclay ; Orsay) ; Chary, R.R. (Caltech) ; Chiang, H.C. (Princeton U. ; KwaZulu Natal U.) ; Christensen, P.R. (Bohr Inst.) ; Colombi, S. (Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Colombo, L.P.L. (UCLA ; Caltech) ; Combet, C. (LPSC, Grenoble) ; Couchot, F. (Orsay) ; Coulais, A. (LERMA, Ivry) ; Crill, B.P. (Caltech) ; Curto, A. (Cantabria Inst. of Phys. ; Cambridge U. ; Cambridge U., KICC) ; Cuttaia, F. (Bologna Observ.) ; Danese, L. (SISSA, Trieste) ; Davies, R.D. (Manchester U.) ; Davis, R.J. (Manchester U.) ; de Bernardis, P. (Rome U.) ; de Rosa, A. (Bologna Observ.) ; de Zotti, G. (Padua Observ. ; SISSA, Trieste) ; Delabrouille, J. (APC, Paris) ; Delouis, J.M. (Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Desert, F.X. (Grenoble Observ.) ; Dickinson, C. (Manchester U.) ; Diego, J.M. (Cantabria Inst. of Phys.) ; Dole, H. (Orsay ; IUF, Paris) ; Donzelli, S. (Brera Observ.) ; Dore, O. (Caltech) ; Douspis, M. (Orsay) ; Ducout, A. (Paris, Inst. Astrophys. ; Imperial Coll., London) ; Dupac, X. (ESA, Madrid) ; Efstathiou, G. (Cambridge U., Inst. of Astron.) ; Elsner, F. (University Coll. London ; Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Ensslin, T.A. (Garching, Max Planck Inst.) ; Eriksen, H.K. (Oslo U.) ; Falgarone, E. (LERMA, Ivry) ; Fergusson, J. (Cambridge U., DAMTP) ; Finelli, F. (Bologna Observ. ; INFN, Bologna) ; Forni, O. (Toulouse III U. ; IRAP, Toulouse) ; Frailis, M. (Trieste Observ.) ; Fraisse, A.A. (Princeton U.) ; Franceschi, E. (Bologna Observ.) ; Frejsel, A. (Bohr Inst.) ; Galeotta, S. (Trieste Observ.) ; Galli, S. (Chicago U., KICP) ; Ganga, K. (APC, Paris) ; Ghosh, T. (Orsay) ; Giard, M. (Toulouse III U. ; IRAP, Toulouse) ; Giraud-Heraud, Y. (APC, Paris) ; Gjerlow, E. (Oslo U.) ; Gonzalez-Nuevo, J. (Oviedo U. ; Cantabria Inst. of Phys.) ; Gorski, K.M. (Caltech ; Warsaw U.) ; Gratton, S. (Cambridge U., KICC ; Cambridge U., Inst. of Astron.) ; Gregorio, A. (Trieste U. ; Trieste Observ. ; INFN, Trieste) ; Gruppuso, A. (Bologna Observ.) ; Gudmundsson, J.E. (Princeton U.) ; Hansen, F.K. (Oslo U.) ; Hanson, D. (Rutherford ; Caltech ; Canadian Inst. Theor. Astrophys.) ; Harrison, D.L. (Cambridge U., Inst. of Astron. ; Cambridge U., KICC) ; Helou, G. (Caltech) ; Henrot-Versille, S. (Orsay) ; Hernandez-Monteagudo, C. (CEFCA, Teruel ; Garching, Max Planck Inst.) ; Herranz, D. (Cantabria Inst. of Phys.) ; Hildebrandt, S.R. (Caltech) ; Hivon, E. (Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Hobson, M. (Cambridge U.) ; Holmes, W.A. (Caltech) ; Hornstrup, A. (Denmark, Tech. U.) ; Hovest, W. (Garching, Max Planck Inst.) ; Huffenberger, K.M. (Florida State U.) ; Hurier, G. (Orsay) ; Jaffe, A.H. (Imperial Coll., London) ; Jaffe, T.R. (Toulouse III U. ; IRAP, Toulouse) ; Jones, W.C. (Princeton U.) ; Juvela, M. (Helsinki U.) ; Keihanen, E. (Helsinki U.) ; Keskitalo, R. (LBL, Berkeley) ; Kisner, T.S. (LBL, Berkeley) ; Kneissl, R. (European Southern Obs., Chile) ; Knoche, J. (Garching, Max Planck Inst.) ; Kunz, M. (Geneva U. ; Orsay ; African Inst. Math. Sci., Cape Town) ; Kurki-Suonio, H. (Helsinki U. ; Helsinki Inst. of Phys.) ; Lagache, G. (Marseille, Lab. Astrophys. ; Orsay) ; Lahteenmaki, A. (Aalto U. ; Helsinki Inst. of Phys.) ; Lamarre, J.M. (LERMA, Ivry) ; Lasenby, A. (Cambridge U. ; Cambridge U., KICC) ; Lattanzi, M. (Ferrara U.) ; Lawrence, C.R. (Caltech) ; Leahy, J.P. (Manchester U.) ; Leonardi, R. (ESA, Madrid) ; Lesgourgues, J. (Aachen, Tech. Hochsch. ; CERN) ; Levrier, F. (LERMA, Ivry) ; Liguori, M. (Padua U. ; INFN, Padua) ; Lilje, P.B. (Oslo U.) ; Linden-Vornle, M. (Denmark, Tech. U.) ; Lopez-Caniego, M. (ESA, Madrid ; Cantabria Inst. of Phys.) ; Lubin, P.M. (UC, Santa Barbara) ; Macias-Perez, J.F. (LPSC, Grenoble) ; Maggio, G. (Trieste Observ.) ; Maino, D. (Milan U. ; Brera Observ.) ; Mandolesi, N. (Bologna Observ. ; Ferrara U.) ; Mangilli, A. (Orsay) ; Maris, M. (Trieste Observ.) ; Marshall, D.J. (DAPNIA, Saclay) ; Martin, P.G. (Canadian Inst. Theor. Astrophys.) ; Martinez-Gonzalez, E. (Cantabria Inst. of Phys.) ; Masi, S. (Rome U.) ; Matarrese, S. (Padua U. ; INFN, Padua ; Gran Sasso) ; McGehee, P. (Caltech) ; Meinhold, P.R. (UC, Santa Barbara) ; Melchiorri, A. (Rome U. ; INFN, Rome) ; Mendes, L. (ESA, Madrid) ; Mennella, A. (Milan U. ; Brera Observ.) ; Migliaccio, M. (Cambridge U., Inst. of Astron. ; Cambridge U., KICC) ; Mitra, S. (Pune U. ; Caltech) ; Miville-Deschenes, M.A. (Orsay ; Canadian Inst. Theor. Astrophys.) ; Moneti, A. (Paris, Inst. Astrophys.) ; Montier, L. (Toulouse III U. ; IRAP, Toulouse) ; Morgante, G. (Bologna Observ.) ; Mortlock, D. (Imperial Coll., London) ; Moss, A. (Nottingham U.) ; Munshi, D. (Cardiff U.) ; Murphy, J.A. (NUIM, Maynooth) ; Naselsky, P. (Bohr Inst.) ; Nati, F. (Princeton U.) ; Natoli, P. (Ferrara U. ; INFN, Rome2 ; Bologna Observ.) ; Netterfield, C.B. (Toronto U.) ; Norgaard-Nielsen, H.U. (Denmark, Tech. U.) ; Noviello, F. (Manchester U.) ; Novikov, D. (Lebedev Inst.) ; Novikov, I. (Bohr Inst. ; Lebedev Inst.) ; Orlando, E. (Stanford U., HEPL ; KIPAC, Menlo Park ; Stanford U., Phys. Dept.) ; Oxborrow, C.A. (Denmark, Tech. U.) ; Paci, F. (SISSA, Trieste) ; Pagano, L. (Rome U. ; INFN, Rome) ; Pajot, F. (Orsay) ; Paladini, R. (Caltech) ; Paoletti, D. (Bologna Observ. ; INFN, Bologna) ; Partridge, B. (Haverford Coll.) ; Pasian, F. (Trieste Observ.) ; Patanchon, G. (APC, Paris) ; Pearson, T.J. (Caltech) ; Peel, M. (Manchester U.) ; Perdereau, O. (Orsay) ; Perotto, L. (LPSC, Grenoble) ; Perrotta, F. (SISSA, Trieste) ; Pettorino, V. (Heidelberg U.) ; Piacentini, F. (Rome U.) ; Piat, M. (APC, Paris) ; Pierpaoli, E. (UCLA) ; Pietrobon, D. (Caltech) ; Plaszczynski, S. (Orsay) ; Pointecouteau, E. (Toulouse III U. ; IRAP, Toulouse) ; Polenta, G. (INFN, Rome2 ; Rome Observ.) ; Pratt, G.W. (DAPNIA, Saclay) ; Prezeau, G. (Caltech) ; Prunet, S. (Paris, Inst. Astrophys. ; Paris U., VI-VII) ; Puget, J.L. (Orsay) ; Rachen, J.P. (Nijmegen U. ; Garching, Max Planck Inst.) ; Reach, W.T. (Universities Space Research Assoc.) ; Rebolo, R. (IAC, La Laguna ; CSIC, Madrid ; Laguna U., Tenerife) ; Reinecke, M. (Garching, Max Planck Inst.) ; Remazeilles, M. (Manchester U. ; Orsay ; APC, Paris) ; Renault, C. (LPSC, Grenoble) ; Renzi, A. (Rome U. ; INFN, Rome) ; Ristorcelli, I. (Toulouse III U. ; IRAP, Toulouse) ; Rocha, G. (Caltech) ; Rosset, C. (APC, Paris) ; Rossetti, M. (Milan U. ; Brera Observ.) ; Roudier, G. (APC, Paris ; LERMA, Ivry ; Caltech) ; Rubino-Martin, J.A. (IAC, La Laguna ; Laguna U., Tenerife) ; Rusholme, B. (Caltech) ; Sandri, M. (Bologna Observ.) ; Santos, D. (LPSC, Grenoble) ; Savelainen, M. (Helsinki U. ; Helsinki Inst. of Phys.) ; Savini, G. (University Coll. London) ; Scott, D. (British Columbia U.) ; Seiffert, M.D. (Caltech) ; Shellard, E.P.S. (Cambridge U., DAMTP) ; Spencer, L.D. (Cardiff U.) ; Stolyarov, V. (Cambridge U. ; Stavropol, Astrophys. Observ. ; Kazan State U.) ; Stompor, R. (APC, Paris) ; Strong, A.W. (Garching, Max Planck Inst., MPE) ; Sudiwala, R. (Cardiff U.) ; Sunyaev, R. (Garching, Max Planck Inst. ; Moscow, Space Res. Inst.) ; Sutton, D. (Cambridge U., Inst. of Astron. ; Cambridge U., KICC) ; Suur-Uski, A.S. (Helsinki U. ; Helsinki Inst. of Phys.) ; Sygnet, J.F. (Paris, Inst. Astrophys.) ; Tauber, J.A. (ESTEC, Noordwijk) ; Terenzi, L. (Facolta di Ingegneria, Rome ; Bologna Observ.) ; Toffolatti, L. (Oviedo U. ; Cantabria Inst. of Phys. ; Bologna Observ.) ; Tomasi, M. (Milan U. ; Brera Observ.) ; Tristram, M. (Orsay) ; Tucci, M. (Geneva U.) ; Tuovinen, J. (Trinity Coll., Dublin) ; Umana, G. (Catania Astrophys. Observ.) ; Valenziano, L. (Bologna Observ.) ; Valiviita, J. (Helsinki U. ; Helsinki Inst. of Phys.) ; Van Tent, B. (Orsay) ; Vidal, M. (Manchester U.) ; Vielva, P. (Cantabria Inst. of Phys.) ; Villa, F. (Bologna Observ.) ; Wade, L.A. (Caltech) ; Wandelt, B.D. (Paris, Inst. Astrophys. ; Paris U., VI-VII ; Illinois U., Urbana) ; Watson, R. (Manchester U.) ; Wehus, I.K. (Caltech) ; Wilkinson, A. (Manchester U.) ; Yvon, D. (DAPNIA, Saclay) ; Zacchei, A. (Trieste Observ.) ; Zonca, A. (UC, Santa Barbara) |
Publication | 2016-09-20 |
Imprint | 22 Jun 2015 |
Number of pages | 45 |
Note | Comments: Planck collaboration paper XXV from 2015 results. Submitted to A&A.; Corresponding authors: Clive Dickinson and Paddy Leahy. 46 pages, 33 figures Planck collaboration paper XXV from 2015 results. Submitted to A&A.; Corresponding authors: Clive Dickinson and Paddy Leahy. 46 pages, 33 figures |
In: | Astron. Astrophys. 594 (2016) A25 |
DOI | 10.1051/0004-6361/201526803 |
Subject category | Astrophysics and Astronomy |
Abstract | (abridged) We discuss the Galactic foreground emission between 20 and 100GHz based on observations by Planck/WMAP. The Commander component-separation tool has been used to separate the various astrophysical processes in total intensity. Comparison with RRL templates verifies the recovery of the free-free emission along the Galactic plane. Comparison of the high-latitude Halpha emission with our free-free map shows residuals that correlate with dust optical depth, consistent with a fraction ( 30%) of Halpha having been scattered by high-latitude dust. We highlight a number of diffuse spinning dust morphological features at high latitude. There is substantial spatial variation in the spinning dust spectrum, with the emission peak ranging from below 20GHz to more than 50GHz. There is a strong tendency for the spinning dust component near many prominent HII regions to have a higher peak frequency, suggesting that this increase in peak frequency is associated with dust in the photodissociation regions around the nebulae. The emissivity of spinning dust in these diffuse regions is of the same order as previous detections in the literature. Over the entire sky, the commander solution finds more anomalous microwave emission than the WMAP component maps, at the expense of synchrotron and free-free emission. This can be explained by the difficulty in separating multiple broadband components with a limited number of frequency maps. Future surveys (5-20GHz), will greatly improve the separation by constraining the synchrotron spectrum. We combine Planck/WMAP data to make the highest S/N ratio maps yet of the intensity of the all-sky polarized synchrotron emission at frequencies above a few GHz. Most of the high-latitude polarized emission is associated with distinct large-scale loops and spurs, and we re-discuss their structure... |
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