Planckintermediate results

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 20 Jul 2015Embargo end date: 01 Jan 2014 Ireland, Denmark, United States, United Kingdom, France, Italy, France, United Kingdom, Norway, France, Italy, France, France, Italy, Finland, Netherlands, France, France, France, Finland, France, Netherlands, Denmark, Italy, United Kingdom, Italy, Italy, Finland, France, Italy, Italy, France, Italy, Italy Publisher:EDP SciencesJournal:Astronomy & Astrophysics, volume 580, page A13 (issn: 0004-6361, eissn: 1432-0746,

Copyright policy )Publicly fundedFunded by:UKRI | The Radio Universe: astro..., SNSF | Constraining cosmological..., EC | RADIOFOREGROUNDS +1 projects

Authors: Collaboration, Planck; Ade, P A R; Aghanim, N; Alves, M I R; Arnaud, M; Ashdown, M; Atrio-Barandela, F; +185 Authors

Collaboration, Planck; Ade, P A R; Aghanim, N; Alves, M I R; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Baccigalupi, C; Banday, A J; Barreiro, R B; Battaner, E; Benabed, K; Benoit-L√©vy, A; Bernard, J-P; Bersanelli, M; Bielewicz, P; Bobin, J; Bonaldi, A; Bond, J R; Bouchet, F R; Boulanger, F; Burigana, C; Cardoso, J-F; Catalano, A; Chamballu, A; Chiang, H C; Christensen, P R; Clements, D L; Colombi, S; Colombo, L P L; Combet, C; Couchot, F; Crill, B P; Cuttaia, F; Danese, L; Davies, R D; Davis, R J; de Bernardis, P; de Rosa, A; de Zotti, G; Delabrouille, J; Dickinson, C; Diego, J M; Donzelli, S; Dor√©, O; Douspis, M; Dupac, X; Efstathiou, G; En√ülin, T A; Eriksen, H K; Finelli, F; Forni, O; Frailis, M; Franceschi, E; Galeotta, S; Ganga, K; G√©nova-Santos, R T; Ghosh, T; Giard, M; Giardino, G; Giraud-H√©raud, Y; Gonz√°lez-Nuevo, J; G√≥rski, K M; Gregorio, A; Gruppuso, A; Hansen, F K; Harrison, D L; Henrot-Versill√©, S; Herranz, D; Hildebrandt, S R; Hivon, E; Hobson, M; Hornstrup, A; Hovest, W; Huffenberger, K M; Jaffe, A H; Jaffe, T R; Jones, W C; Keih√§nen, E; Keskitalo, R; Kisner, T S; Kneissl, R; Knoche, J; Kunz, M; Kurki-Suonio, H; Lagache, G; L√§hteenm√§ki, A; Lamarre, J-M; Lasenby, A; Lawrence, C R; Leonardi, R; Liguori, M; Lilje, P B; Linden-V√∏rnle, M; L√≥pez-Caniego, M; Lubin, P M; Mac√≠as-P√©rez, J F; Maino, D; Mandolesi, N; Martin, P G; Mart√≠nez-Gonz√°lez, E; Masi, S; Massardi, M; Matarrese, S; Mazzotta, P; Meinhold, P R; Melchiorri, A; Mendes, L; Mennella, A; Migliaccio, M; Mitra, S; Miville-Desch√™nes, M-A; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Munshi, D; Murphy, J A; Naselsky, P; Nati, F; Natoli, P; N√∏rgaard-Nielsen, H U; Noviello, F; Novikov, D; Novikov, I; Oxborrow, C A; Pagano, L; Pajot, F; Paladini, R; Paoletti, D; Pasian, F; Pearson, T J; Peel, Michael; Perdereau, O; Perrotta, F; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Ponthieu, N; Popa, L; Pratt, G W; Prunet, S; Puget, J-L; Rachen, J P; Reach, W T; Rebolo, R; Reich, W; Reinecke, M; Remazeilles, M; Renault, C; Ricciardi, S; Riller, T; Ristorcelli, I; Rocha, G; Rosset, C; Roudier, G; Rubi√±o-Mart√≠n, J A; Rusholme, B; Sandri, M; Savini, G; Scott, D; Spencer, L D; Stolyarov, V; Strong, A W; Sutton, D; Suur-Uski, A-S; Sygnet, J-F; Tauber, J A; Tavagnacco, D; Terenzi, L; Tibbs, C T; Toffolatti, L; Tomasi, M; Tristram, M; Tucci, M; Valenziano, L; Valiviita, J; Van Tent, B; Varis, J; Vielva, P; Villa, F; Wade, L A; Wandelt, B D; Watson, R; Yvon, D; Zacchei, A; Zonca, A;

doi: 10.1051/0004-6361/201424434 , 10.48550/arxiv.1406.5093

arXiv: 1406.5093

handle: 10261/140113 , https://repository.ubn.ru.nl/handle/2066/143818 , 11368/2869955 , 10852/48398 , 2066/143818 , 2434/387727 , 10281/405714 , 10138/233354 , 11858/00-001M-0000-0028-9489-F , 11858/00-001M-0000-0028-9487-4 , 11858/00-001M-0000-0028-9484-A , 11858/00-001M-0000-0028-9486-6 , 11858/00-001M-0000-002B-2B44-D , 11577/3170515 , 2108/177903 , 11573/816199 , 11392/2357532 , 20.500.11767/11613 , 10044/1/41411

Planckintermediate results

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Abstract

Planck data when combined with ancillary data provide a unique opportunity to separate the diffuse emission components of the inner Galaxy. The purpose of the paper is to elucidate the morphology of the various emission components in the strong star-formation region lying inside the solar radius and to clarify the relationship between the various components. The region of the Galactic plane covered is l=300-0-60deg where star-formation is highest and the emission is strong enough to make meaningful component separation. The latitude widths in this longitude range lie between 1deg and 2deg, which correspond to FWHM z-widths of 100-200pc at a typical distance of 6kpc. The four emission components studied here are synchrotron, free-free, anomalous microwave emission (AME), and thermal (vibrational) dust emission. These components are identified by constructing spectral energy distributions (SEDs) at positions along the Galactic plane using the wide frequency coverage of Planck (28.4-857GHz) in combination with low-frequency radio data at 0.408-2.3GHz plus WMAP data at 23-94GHz, along with far-infrared (FIR) data from DIRBE and IRAS. The free-free component is determined from radio recombination line (RRL) data. AME is found to be comparable in brightness to the free-free emission on the Galactic plane in the frequency range 20-40GHz with a width in latitude similar to that of the thermal dust; it comprises 45+/-1% of the total 28.4GHz emission in the longitude range l=300-0-60deg. The free-free component is the narrowest, reflecting the fact that it is produced by current star-formation as traced by the narrow distribution of OB stars. It is the dominant emission on the plane between 60 and 100GHz. RRLs from this ionized gas are used to assess its distance, leading to a free-free z-width of FWHM ~100pc...(abridged)

28 pages, A&A (accepted), on behalf of Planck Collaboration. Minor formatting and reference updates

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Ireland, Denmark, United States, United Kingdom, France, Italy, France, United Kingdom, Norway, France, Italy, France, France, Italy, Finland, Netherlands, France, France, France, Finland, France, Netherlands, Denmark, Italy, United Kingdom, Italy, Italy, Finland, France, Italy, Italy, France, Italy, Italy

Related Organizations

University of Cambridge
United Kingdom
University of Granada
Spain
University of Manchester
United Kingdom
Sapienza University of Rome
Italy
UNIVERSITE FEDERALE DE TOULOUSE MIDI-PYRENEES
France

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Keywords

Astronomy, LARGE-AREA TELESCOPE, 510, radiation mechnisms, DIFFUSE IONIZED-GAS, general [Radiation mechanisms], general [ISM], ta213, [PHYS.ASTR.GA] Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], ISM [Submillimeter], RADIO-CONTINUUM SURVEY, 520, radio continuum: ISM, SPINNING DUST GRAINS, Physical Sciences, MILKY-WAY, submillimeter: ISM, [SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], [SDU.ASTR.GA] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], Galaxy: disk; Galaxy: general; ISM: general; Radiation mechanisms: general; Radio continuum: ISM; Submillimeter: ISM; Astronomy and Astrophysics; Space and Planetary Science, disk [Galaxy], astro-ph.GA, ta221, ta1171, radiation mechanisms: general, FOS: Physical sciences, Astronomy, Space science, Galaxy: disk; Galaxy: general; ISM: general; Radiation mechanisms: general; Radio continuum: ISM; Submillimeter: ISM;, Settore FIS/05 - ASTRONOMIA E ASTROFISICA, Astronomy & Astrophysics, 530, Galaxy: disk, RECOMBINATION LINE EMISSION, PRE-LAUNCH STATUS, Radio continuum: ISM, Submillimeter: ISM, ta216, Galaxy: general, ISM, general [Galaxy], ISM: general, Science & Technology, ta115, ta114, ISM: general â€“ Galaxy: general â€“ radiation mechanisms: general â€“ radio continuum: ISM â€“ submillimeter: ISM â€“ Galaxy: disk, Astronomy and Astrophysic, Radiation mechanisms: general, MICROWAVE-ANISOTROPY-PROBE, ISM [Radio continuum], Astrophysics - Astrophysics of Galaxies, Galaxy: disk; Galaxy: general; ISM: general; Radiation mechanisms: general; Radio continuum: ISM; Submillimeter: ISM, SYNCHROTRON EMISSION, 0201 Astronomical And Space Sciences, [PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], GAMMA-RAY EMISSION

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