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Proceedings Paper

The photodetector array camera and spectrometer (PACS) for the Herschel Space Observatory
Author(s): Albrecht Poglitsch; Christoffel Waelkens; Otto H. Bauer; Jordi Cepa; Thomas F.E. Henning; Chris van Hoof; Reinhard Katterloher; Franz Kerschbaum; Dietrich Lemke; Etienne Renotte; Louis Rodriguez; Pierre Royer; Paolo Saraceno
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Paper Abstract

The Photodetector Array Camera and Spectrometer (PACS) is one of the three science instruments for ESA's far infrared and submillimetre observatory, Herschel. It employs two Ge:Ga photoconductor arrays (stressed and unstressed) with 16 x 25 pixels, each, and two filled Si bolometer arrays with 16 x 32 and 32 x 64 pixels, respectively, to perform imaging line spectroscopy and imaging photometry in the 57-210 micron wavelength band. In photometry mode, it will simultaneously image two bands, 60-85 micron or 85-130 micron and 130-210 micron, over a field of view of ~ 1.75'x3.5', with full beam sampling in each band. In spectroscopy mode, it will image a field of ~ 50"x50", resolved into 5 x 5 pixels, with an instantaneous spectral coverage of ~ 1500 km/s and a spectral resolution of ~ 75 - 300 km/s. In both modes background-noise limited peformance is expected, with sensitivities (5σ in 1h) of ~3 mJy or 3-10x10-18 W/m2, respectively.

Paper Details

Date Published: 12 October 2004
PDF: 12 pages
Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); doi: 10.1117/12.550045
Show Author Affiliations
Albrecht Poglitsch, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Christoffel Waelkens, Katholieke Univ. Leuven (Belgium)
Otto H. Bauer, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Jordi Cepa, Instituto de Astrofisica de Canarias (Spain)
Thomas F.E. Henning, Max-Planck-Institut fur Astronomie (Germany)
Chris van Hoof, IMEC (Belgium)
Reinhard Katterloher, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Franz Kerschbaum, Univ. Wien (Austria)
Dietrich Lemke, Max-Planck-Institut fur Astronomie (Germany)
Etienne Renotte, Ctr. Spatial de Liege (Belgium)
Louis Rodriguez, CEA-Service D'Astrophysique (France)
Pierre Royer, Katholieke Univ. Leuven (Belgium)
Paolo Saraceno, Istituto di Fisica dello Spazio Interplanetario (Italy)


Published in SPIE Proceedings Vol. 5487:
Optical, Infrared, and Millimeter Space Telescopes
John C. Mather, Editor(s)

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