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Título

Planck 2013 results. XIV. Zodiacal emission

Autor Ganga, K.; Barreiro, R. Belén ; Curto, Andrés ; Diego, José María ; González-Nuevo, J. ; Herranz, D. ; López-Caniego, M. ; Martínez-González, Enrique ; Rebolo López, Rafael; Toffolatti, L. ; Vielva, P. ; Planck Collaboration
Palabras clave Cosmic background radiation
Zodiacal dust
Interplanetary medium
Fecha de publicación 2014
EditorEDP Sciences
Citación Astronomy and Astrophysics 571: A25 (2014)
ResumenThe Planck satellite provides a set of all-sky maps at nine frequencies from 30GHz to 857GHz. Planets, minor bodies, and diffuse interplanetary dust emission (IPD) are all observed. The IPD can be separated from Galactic and other emissions because Planck views a given point on the celestial sphere multiple times, through different columns of IPD. We use the Planck data to investigate the behaviour of zodiacal emission over the whole sky at sub-millimetre and millimetre wavelengths. We fit the Planck data to find the emissivities of the various components of the COBE zodiacal model-a diffuse cloud, three asteroidal dust bands, a circumsolar ring, and an Earth-trailing feature. The emissivity of the diffuse cloud decreases with increasing wavelength, as expected from earlier analyses. The emissivities of the dust bands, however, decrease less rapidly, indicating that the properties of the grains in the bands are different from those in the diffuse cloud. We fit the small amount of Galactic emission seen through the telescope's far sidelobes, and place limits on possible contamination of the cosmic microwave background (CMB) results from both zodiacal and far-sidelobe emission. When necessary, the results are used in the Planck pipeline to make maps with zodiacal emission and far sidelobes removed. We show that the zodiacal correction to the CMB maps is small compared to the Planck CMB temperature power spectrum and give a list of flux densities for small solar system bodies.
Versión del editorhttp://dx.doi.org/10.1051/0004-6361/201321562
URI http://hdl.handle.net/10261/110604
DOI10.1051/0004-6361/201321562
Identificadoresdoi: 10.1051/0004-6361/201321562
e-issn: 1432-0746
issn: 0004-6361
Aparece en las colecciones: (IFCA) Artículos
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