The Photodetector Array Camera & Spectrometer (PACS) for the Herschel Space Observatory

Author(s)
Albrecht Poglitsch, Christoffel Waelkens, Otto H. Bauer, Jordi Cepa, Thomas Henning, Chris A. van Hoof, Reinhard O. Katterloher, Franz Kerschbaum, Dietrich Lemke, Etienne Renotte, Louis Rodriguez, Pierre Royer, Paolo Saraceno
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 × 25 pixels, each, and two filled Si bolometer arrays with 16 × 32 and 32 × 64 pixels, respectively, to perform imaging line spectroscopy and imaging photometry in the 57 - 210/œm wavelength band. In photometry mode, it will simultaneously image two bands, 60 - 85œm or 85 - 130œm and 130 - 210œm, over a field of view of ~ 1.75' × 3.5'. with full beam sampling in each band. In spectroscopy mode, it will image a field of ~ 50? × 50?, resolved into 5 × 5 pixels, with an instantaneous spectral coverage of ~ 1500km/s and a spectral resolution of ~ 75 - 300km/s. In both modes background-noise limited peformance is expected, with sensitivities (5s in 1h) of ~ 3 mJy or 3 - 10 × 10-18W/m2, respectively.

Organisation(s)
Department of Astrophysics
External organisation(s)
Max-Planck-Institut für extraterrestrische Physik, Katholieke Universiteit Leuven, Institute of Astrophysics of the Canary Islands, Max-Planck-Institut für Astronomie, Interuniversity Microelectronics Centre, Centre Spatial de Liege, French Alternative Energies and Atomic Energy Commission (CEA), Istituto di Fisica dello Spazio Interplanetario
Volume
3 vols
Pages
425-436
No. of pages
12
DOI
https://doi.org/10.1117/12.550045
Publication date
2004
Austrian Fields of Science 2012
103003 Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/c869c679-6f30-4454-8d5c-e5e5dc9ab8e0