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Astron. Astrophys. 315, L32-L37 (1996)

ISOCAM in flight*

C.J. Cesarsky1, A. Abergel2, P. Agnèse1,3, B. Altieri4, J.L. Auguères1, H. Aussel1, A. Biviano4, J. Blommaert4, J.F. Bonnal1, F. Bortoletto5, O. Boulade1, F. Boulanger2, S. Cazes tex2html_wrap1062, D.A. Cesarsky2, A. Chedin6, A. Claret1, M. Combes7, J. Cr'etolle1, J.K. Davies8, F.X. D'esert2, D. Elbaz1, J.J. Engelmann1, G. Epstein7, A. Franceschini5, P. Gallais1,4, R. Gastaud1, M. Gorisse1, S. Guest4, T. Hawarden8, D. Imbault1, M. Kleczewski1, F. Lacombe7, D. Landriu1, J. Lapègue1, P. L'ena7, M.S. Longair9, R. Mandolesi10, L. Metcalfe4, N. Mosquet2, L. Nordh11, K. Okumura4, S. Ott4, M. P'erault2, F. Perrier7, P. Persi12, P. Puget7, T. Purkins8, Y. Rio1, T. Robert1, D. Rouan7, A. Roy1, O. Saint-P'e7, J. Sam Lone1, A. Sargent13, M. Sauvage1, F. Sibille14, R. Siebenmorgen4, F. Sirou6, A. Soufflot2, J.L. Starck1, D. Tiphène7, D. Tran1, G. Ventura10, L. Vigroux1, F. Vivares2, and R. Wade8

1 Service d'Astrophysique/DAPNIA/DSM, CEA-Saclay, F-91191 Gif-sur-Yvette, France
2 Institut d'Astrophysique Spatiale, F-91405 Orsay, France
3 LIR/LETI, CEA-Grenoble, F-38054 Grenoble, France
4 ESA/Villafranca Satellite Tracking Station, Apartado 50727, E-28080 Madrid, Spain
5 Osservatorio Astronomico di Padova, I-35122 Padova, Italy
6 Laboratoire de M'et'eorologie Dynamique, F-91128 Palaiseau, France
7 Observatoire de Paris, F-75014 Paris, France
8 Royal Observatory, Edinburgh EH93HJ, Scotland
9 Cavendish Laboratory, Cambridge CB30HE, UK
10 Istituto di Tecnologie e Studio delle Radiazioni Extraterrestri, I-40129 Bologna, Italy
11 Stockholm Observatory, S-13336 Saltsjöbaden, Sweden
12 Istituto di Astrofisica Spaziale, I-00044 Frascati, Italy
13 California Institute of Technology, Pasadena 91125, USA
14 Observatoire de Lyon, F-69561 Saint Genis Laval, France

Received 6 September 1996 / Accepted 13 September 1996

Abstract. ISOCAM, the camera on-board ISO, takes images of the sky in the wavelength range 2.5 to 18 img2.gifm. It features two independent channels, containing each a img3.gif pixel detector: the short wavelength channel - 2.5 to 5.5 img2.gifm, and the long wavelength channel - 4 to 18 img2.gifm. Each channel features 10 or 11 discrete band pass filters and CVFs with a resolution better than 35. Each channel is fitted with a set of lenses, which reimage the focal plane of the telescope on the array, yielding a pixel field of view of 1.5, 3, 6 or 12 arcsec. Throughout the development cycle, ISOCAM has been carefully calibrated, first at component level and next at instrument level. The detectors have been thoroughly tested, including exposure to gamma rays and to fast protons and nuclei. The in-flight performance of ISOCAM matches all the expectations: for instance at 15 img2.gifm and 6 arcsec field of view, 200 img2.gifJy sources are detected at the 10 img4.gif level in 200 seconds.

Key words: camera - infrared - space

* Based on observations with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with participation of ISAS and NASA.

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Last change: December 16, 1996
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