155 articles – 1965 Notices  [english version]
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Astronomy and Astrophysics 520 (2010) A12
Planck pre-launch status: HFI beam expectations from the optical optimisation of the focal plane
B. Maffei, F. Noviello1, J. A. Murphy, P. A. R. Ade, J.-M. Lamarre2, F. R. Bouchet3, J. Brossard4, 5, A. Catalano2, 6, R. Colgan, R. Gispert1, E. Gleeson, C. V. Haynes, W. C. Jones, A. E. Lange, Y. Longval1, I. Mcauley, F. Pajot1, T. Peacocke, G. Pisano, J.-L. Puget1, I. Ristorcelli5, G. Savini, R. Sudiwala, R. J. Wylde, V. Yurchenko
PLANCK, PLANCK-HFI Collaboration(s)

Planck is a European Space Agency (ESA) satellite, launched in May 2009, which will map the cosmic microwave background anisotropies in intensity and polarisation with unprecedented detail and sensitivity. It will also provide full-sky maps of astrophysical foregrounds. An accurate knowledge of the telescope beam patterns is an essential element for a correct analysis of the acquired astrophysical data. We present a detailed description of the optical design of the High Frequency Instrument (HFI) together with some of the optical performances measured during the calibration campaigns. We report on the evolution of the knowledge of the pre-launch HFI beam patterns when coupled to ideal telescope elements, and on their significance for the HFI data analysis procedure.
1 :  IAS - Institut d'astrophysique spatiale
2 :  LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
3 :  IAP - Institut d'Astrophysique de Paris
4 :  LAL - Laboratoire de l'Accélérateur Linéaire
5 :  CESR - Centre d'étude spatiale des rayonnements
6 :  APC - UMR 7164 - AstroParticule et Cosmologie
APC - Cosmologie et gravitation
Planète et Univers/Astrophysique/Instrumentation et méthodes pour l'astrophysique

Physique/Astrophysique/Instrumentation et méthodes pour l'astrophysique

Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique

Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Space vehicles: instruments / submillimeter: general / telescopes / cosmic microwave background / instrumentation: polarimeters / instrumentation: detectors