Astron. Astrophys. 315, L297-L300 (1996)
A first glimpse into ISM/ICM connections at z=0.2 with ISOCAM*
M. Pierre1, H. Aussel1, B. Altieri2, J. Ph. Bernard3, A. Biviano2, O. Boulade1, C. Cesarsky1, D. Cesarsky3, D. Elbaz1, R. Hunstead4, L. Lemonon1, A. Reid4, and L. Vigroux1
1 CEA Saclay DSM/DAPNIA, Service d'Astrophysique,
F-91191 Gif-sur-Yvette, France
Received 16 July 1996 / Accepted 16 August 1996
Abstract. Although it is well established that the cluster environment affects the gas content and massive star formation in galaxies, the mechanisms have not yet been unambiguously identified. In order to elucidate some of the processes responsible, an ISO Core Programme - DEEPXSRC - is dedicated to deep observations of medium redshift rich clusters of galaxies. We present here the first results from this programme, obtained by correlating our ISOCAM observations ( at 7.5 and 15 m) of the cluster A1732 with radio, optical and X-ray images. Some 10 distant IR galaxies are detected in an field and are the faintest extragalactic sources detected by ISO so far.
Key words: cosmology: observations (ISO, ROSAT, Australia Telescope) - galaxies: clusters: individual Abell 1732 - infrared: galaxies - X-ray: general - radio continuum: galaxies
* 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. Also based on data obtained with the Canada-France-Hawaii Telescope, the Australia Telescope and ROSAT.
Last change: December 16, 1996