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Proceedings Paper

The Planck high-frequency instrument: a third generation CMB probe and the first submillimeter surveyor
Author(s): Jean-Michel Lamarre; Jean Loup Puget; M. Piat; Peter A. R. Ade; Andrew E. Lange; Alain Benoit; Pierluigi De Bernardis; F. R. Bouchet; James J. Bock; F. X. Desert; Roger J. Emery; Martin Giard; Bruno Maffei; J. Anthony Murphy; Jean-Pierre Torre; Ravinder Bhatia; Rashmi V. Sudiwala; V. Yourchenko
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Paper Abstract

The High Frequency Instrument of the Planck satellite is dedicated to the measurement of the anisotropy of the Cosmic Microwave Background (CMB). Its main goal is to map the CMB with a sensitivity of ΔT/T=2.10-6 and an angular resolution of 5 arcmin in order to constrain cosmological parameters. Planck is a project of the European Space Agency based on a wide international collaboration, including United States and Canadian laboratories. The architecture of the satellite is driven by the thermal requirements resulting from the search for low photon noise. Especially, the passively cooled telescope should be at less than 50K, while a cascade of cryo-coolers will ensure the cooling of the HFI bolometers down to 0.1K. This last temperature will be produced by a gravity insensitive 3He/4He dilution cooler. This will be achieved at the L2 Lagrangian point of the Sun-Earth system. The whole sky will be observed two times in the 14 months mission with a scanning strategy based on a 1RPM rotation of the satellite. In addition to the cosmological parameters that can be derived from the CMB maps, Planck will deliver nine high sensitivity submillimeter maps of the whole sky that will constitute unique data available to the whole astronomical community.

Paper Details

Date Published: 5 March 2003
PDF: 10 pages
Proc. SPIE 4850, IR Space Telescopes and Instruments, (5 March 2003); doi: 10.1117/12.461636
Show Author Affiliations
Jean-Michel Lamarre, Observatoire de Paris-Meudon (France)
Jean Loup Puget, Institut d'Astrophysique Spatiale (France)
M. Piat, Institut d'Astrophysique Spatiale (France)
Peter A. R. Ade, Cardiff Univ. (United Kingdom)
Andrew E. Lange, California Institute of Technology (United States)
Alain Benoit, CRTBT (France)
Pierluigi De Bernardis, Univ. degli Studi di Roma La Sapienza (Italy)
F. R. Bouchet, Institut d'Astrophysique de Paris (France)
James J. Bock, Jet Propulsion Lab (United States)
F. X. Desert, Institut d'Astrophysique de l'Observatoire de Grenoble (France)
Roger J. Emery, Rutherford Appleton Lab. (United Kingdom)
Martin Giard, Ctr. d'Etude Spatiale des Royonnements (France)
Bruno Maffei, Cardiff Univ. (United Kingdom)
J. Anthony Murphy, National Univ. of Ireland (Ireland)
Jean-Pierre Torre, Service d'Aeronomie (France)
Ravinder Bhatia, California Institute of Technology (United States)
Rashmi V. Sudiwala, Cardiff Univ. (United Kingdom)
V. Yourchenko, National Univ. of Ireland/Maynooth (Ireland)

Published in SPIE Proceedings Vol. 4850:
IR Space Telescopes and Instruments
John C. Mather, Editor(s)

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