Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..483s&link_type=abstract
SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret
Astronomy and Astrophysics
Astrophysics
Scientific paper
With the recent results of the X-ray satellites XMM-Newton and Chandra, the very existence of the so-called cooling flow phenomenon has been highly debated. We present here a millimetric study of central cluster galaxies (CGG) we lead to probe the cooling flow problem. An IRAM 30m telescope survey of a large sample of cooling flow clusters showed the presence of cold molecular gas in the core of several CGGs. The corresponding molecular gas masses derived are between 3.10e8 and 4.10e10 Msun. Synthesis aperture imaging of two strong CO detected clusters have then been performed with the IRAM Plateau de Bure array : Abell 1795 and RXJ0821+07. The CO morphologies and dynamics in these peculiar objects are presented and discussed in order to explore whether the molecular gas origin may consistent with a cooling flow scenario.
Combes François
Salomé Philippe
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