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Planck intermediate results. IX. Detection of the Galactic haze with Planck
- Source :
- Digibug: Repositorio Institucional de la Universidad de Granada, Universidad de Granada (UGR), RUO. Repositorio Institucional de la Universidad de Oviedo, instname, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2013, 554, pp.A139. ⟨10.1051/0004-6361/201220271⟩, ASTRONOMY & ASTROPHYSICS, Astronomy & Astrophysics, 554, A139(1)-A139(15), Digibug. Repositorio Institucional de la Universidad de Granada, Digital.CSIC. Repositorio Institucional del CSIC, Planck Collaboration, Ade, P A R, Aghanim, N, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, A J, Barreiro, R B, Bartlett, J G, Battaner, E, Benabed, K, Benoît, A, Bernard, J-P, Bersanelli, M, Bonaldi, A, Bond, J R, Borrill, J, Bouchet, F R, Burigana, C, Cabella, P, Cardoso, J-F, Catalano, A, Cayón, L, Chary, R-R, Chiang, L-Y, Christensen, P R, Clements, D L, Colombo, L P L, Coulais, A, Crill, B P, Cuttaia, F, Danese, L, D'Arcangelo, O, Davis, R J, de Bernardis, P, de Gasperis, G, de Rosa, A, de Zotti, G, Delabrouille, J, Dickinson, C, Diego, J M, Dobler, G, Dole, H, Donzelli, S, Doré, O, Dörl, U, Douspis, M, Dupac, X, Efstathiou, G, Enßlin, T A, Eriksen, H K, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giardino, G, González-Nuevo, J, Górski, K M, Gratton, S, Gregorio, A, Gruppuso, A, Hansen, F K, Harrison, D, Helou, G, Henrot-Versillé, S, Hernández-Monteagudo, C, Hildebrandt, S R, Hivon, E, Hobson, M, Holmes, W A, Hornstrup, A, Hovest, W, Huffenberger, K M, Jaffe, T R, Jagemann, T, Jones, W C, Juvela, M, Keihänen, E, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J-M, Lasenby, A, Lawrence, C R, Leach, S, Leonardi, R, Lilje, P B, Linden-Vørnle, M, López-Caniego, M, Lubin, P M, Macías-Pérez, J F, Maffei, B, Maino, D, Mandolesi, N, Maris, M, Martin, P G, Martínez-González, E, Masi, S, Massardi, M, Matarrese, S, Matthai, F, Mazzotta, P, Meinhold, P R, Melchiorri, A, Mendes, L, Mennella, A, Mitra, S, Miville-Deschênes, M-A, Moneti, A, Montier, L, Morgante, G, Munshi, D, Murphy, J A, Naselsky, P, Natoli, P, Nørgaard-Nielsen, H U, Noviello, F, Osborne, S, Pajot, F, Paladini, R, Paoletti, D, Partridge, B, Pearson, T J, Perdereau, O, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G W, Prunet, S, Puget, J-L, Rachen, J P, Rebolo, R, Reinecke, M, Renault, C, Ricciardi, S, Riller, T, Rocha, G, Rosset, C, Rubiño-Martín, J A, Rusholme, B, Sandri, M, Savini, G, Schaefer, B M, Scott, D, Smoot, G F, Stivoli, F, Sudiwala, R, Suur-Uski, A-S, Sygnet, J-F, Tauber, J A, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Türler, M, Umana, G, Valenziano, L, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wade, L A, Wandelt, B D, White, M, Yvon, D, Zacchei, A & Zonca, A 2013, ' Planck Intermediate Results. IX. Detection of the Galactic haze with Planck ', Astronomy and Astrophysics, vol. 554, A139 . https://doi.org/10.1051/0004-6361/201220271, Astronomy and Astrophysics-A&A, 2013, 554, pp.A139. ⟨10.1051/0004-6361/201220271⟩, Astronomy & Astrophysics, 554, pp. A139(1)-A139(15)
- Publication Year :
- 2013
-
Abstract
- Using precise full-sky observations from Planck, and applying several methods of component separation, we identify and characterise the emission fromthe Galactic “haze” at microwave wavelengths. The haze is a distinct component of diffuse Galactic emission, roughly centered on the Galactic centre, and extends to |b| ∼ 35−50◦ in Galactic latitude and |l| ∼ 15−20◦ in longitude. By combining the Planck data with observations from the Wilkinson Microwave Anisotropy Probe, we were able to determine the spectrum of this emission to high accuracy, unhindered by the strong systematic biases present in previous analyses. The derived spectrum is consistent with power-law emission with a spectral index of −2.56 ± 0.05, thus excluding free-free emission as the source and instead favouring hard-spectrum synchrotron radiation from an electron population with a spectrum (number density per energy) dN/dE ∝ E−2.1. At Galactic latitudes |b| < 30◦, the microwave haze morphology is consistent with that of the Fermi gamma-ray “haze” or “bubbles”, while at b ∼ −50◦ we have identified an edge in the microwave haze that is spatially coincident with the edge in the gamma-ray bubbles. Taken together, this indicates that we have a multi-wavelength view of a distinct component of our Galaxy. Given both the very hard spectrum and the extended nature of the emission, it is highly unlikely that the haze electrons result from supernova shocks in the Galactic disk. Instead, a new astrophysical mechanism for cosmic-ray acceleration in the inner Galaxy is implied.<br />European Space Agency<br />Centre National D'etudes Spatiales<br />CNRS/INSU-IN2P3-INP (France)<br />Agenzia Spaziale Italiana (ASI)<br />Italian National Research Council<br />Istituto Nazionale Astrofisica (INAF)<br />National Aeronautics & Space Administration (NASA)<br />United States Department of Energy (DOE)<br />Science & Technology Facilities Council (STFC)<br />UKSA (UK)<br />Consejo Superior de Investigaciones Cientificas (CSIC)<br />Spanish Government<br />JA (Spain)<br />Finnish Funding Agency for Technology & Innovation (TEKES)<br />AoF (Finland)<br />CSC (Finland)<br />Helmholtz Association German Aerospace Centre (DLR)<br />Max Planck Society<br />CSA (Canada)<br />DTU Space (Denmark)<br />SER/SSO (Switzerland)<br />RCN (Norway)<br />Science Foundation Ireland<br />Portuguese Foundation for Science and Technology<br />European Union (EU)<br />Harvey L. Karp Discovery Award<br />Science & Technology Facilities Council (STFC) ST/G003874/1 ST/J00152X/1 ST/J001562/1 ST/J004812/1 ST/I005765/1 ST/J001538/1 ST/K000985/1 ST/K003674/1 ST/L001314/1
- Subjects :
- radio continuum: ism
ism: bubbles
ism: structure
galaxy: nucleus
Haze
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Astronomy
WMAP OBSERVATIONS
Astrophysics
01 natural sciences
010303 astronomy & astrophysics
nucleu [Galaxy]
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
Spectral index
Galaxy: nucleus
POWER SPECTRUM ESTIMATION
BAYESIAN COMPONENT SEPARATION
FOREGROUND EMISSION
[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
CMB cold spot
Galaxy: nucleus / ISM: structure / ISM: bubbles / radio continuum: ISM
ISM: structure
ISM: bubbles
radio continuum: ISM
bubbles [ISM]
Supernova
SPINNING DUST GRAINS
Radio continuum: ISM
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
symbols
[SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
Astrophysics::Earth and Planetary Astrophysics
Astrophysics - High Energy Astrophysical Phenomena
Astrophysics - Cosmology and Nongalactic Astrophysics
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
INTERSTELLAR-MEDIUM EMISSION
Astrophysics::High Energy Astrophysical Phenomena
education
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
NORTHERN SKY
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
symbols.namesake
Settore FIS/05 - Astronomia e Astrofisica
0103 physical sciences
bubble [ISM]
PRE-LAUNCH STATUS
Planck
Disc
Astrophysics::Galaxy Astrophysics
TEMPERATURE DATA
nucleus [Galaxy]
010308 nuclear & particles physics
nucleus
Astronomy and Astrophysics
115 Astronomy, Space science
Astrophysics - Astrophysics of Galaxies
MICROWAVE-ANISOTROPY-PROBE
ISM [Radio continuum]
Galaxy
[PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
structure [ISM]
Fermi Gamma-ray Space Telescope
Subjects
Details
- Language :
- English
- ISSN :
- 00046361
- Database :
- OpenAIRE
- Journal :
- Digibug: Repositorio Institucional de la Universidad de Granada, Universidad de Granada (UGR), RUO. Repositorio Institucional de la Universidad de Oviedo, instname, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2013, 554, pp.A139. ⟨10.1051/0004-6361/201220271⟩, ASTRONOMY & ASTROPHYSICS, Astronomy & Astrophysics, 554, A139(1)-A139(15), Digibug. Repositorio Institucional de la Universidad de Granada, Digital.CSIC. Repositorio Institucional del CSIC, Planck Collaboration, Ade, P A R, Aghanim, N, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, A J, Barreiro, R B, Bartlett, J G, Battaner, E, Benabed, K, Benoît, A, Bernard, J-P, Bersanelli, M, Bonaldi, A, Bond, J R, Borrill, J, Bouchet, F R, Burigana, C, Cabella, P, Cardoso, J-F, Catalano, A, Cayón, L, Chary, R-R, Chiang, L-Y, Christensen, P R, Clements, D L, Colombo, L P L, Coulais, A, Crill, B P, Cuttaia, F, Danese, L, D'Arcangelo, O, Davis, R J, de Bernardis, P, de Gasperis, G, de Rosa, A, de Zotti, G, Delabrouille, J, Dickinson, C, Diego, J M, Dobler, G, Dole, H, Donzelli, S, Doré, O, Dörl, U, Douspis, M, Dupac, X, Efstathiou, G, Enßlin, T A, Eriksen, H K, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giardino, G, González-Nuevo, J, Górski, K M, Gratton, S, Gregorio, A, Gruppuso, A, Hansen, F K, Harrison, D, Helou, G, Henrot-Versillé, S, Hernández-Monteagudo, C, Hildebrandt, S R, Hivon, E, Hobson, M, Holmes, W A, Hornstrup, A, Hovest, W, Huffenberger, K M, Jaffe, T R, Jagemann, T, Jones, W C, Juvela, M, Keihänen, E, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J-M, Lasenby, A, Lawrence, C R, Leach, S, Leonardi, R, Lilje, P B, Linden-Vørnle, M, López-Caniego, M, Lubin, P M, Macías-Pérez, J F, Maffei, B, Maino, D, Mandolesi, N, Maris, M, Martin, P G, Martínez-González, E, Masi, S, Massardi, M, Matarrese, S, Matthai, F, Mazzotta, P, Meinhold, P R, Melchiorri, A, Mendes, L, Mennella, A, Mitra, S, Miville-Deschênes, M-A, Moneti, A, Montier, L, Morgante, G, Munshi, D, Murphy, J A, Naselsky, P, Natoli, P, Nørgaard-Nielsen, H U, Noviello, F, Osborne, S, Pajot, F, Paladini, R, Paoletti, D, Partridge, B, Pearson, T J, Perdereau, O, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G W, Prunet, S, Puget, J-L, Rachen, J P, Rebolo, R, Reinecke, M, Renault, C, Ricciardi, S, Riller, T, Rocha, G, Rosset, C, Rubiño-Martín, J A, Rusholme, B, Sandri, M, Savini, G, Schaefer, B M, Scott, D, Smoot, G F, Stivoli, F, Sudiwala, R, Suur-Uski, A-S, Sygnet, J-F, Tauber, J A, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Türler, M, Umana, G, Valenziano, L, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wade, L A, Wandelt, B D, White, M, Yvon, D, Zacchei, A & Zonca, A 2013, ' Planck Intermediate Results. IX. Detection of the Galactic haze with Planck ', Astronomy and Astrophysics, vol. 554, A139 . https://doi.org/10.1051/0004-6361/201220271, Astronomy and Astrophysics-A&A, 2013, 554, pp.A139. ⟨10.1051/0004-6361/201220271⟩, Astronomy & Astrophysics, 554, pp. A139(1)-A139(15)
- Accession number :
- edsair.doi.dedup.....b88a09bf5dec4e31b6f192fb8baf4682