Volume 412, Number 3, December IV 2003
|Page(s)||657 - 667|
|Published online||08 December 2003|
Cold molecular gas in cooling flow clusters of galaxies*
Observatoire de Paris, LERMA, 61 Av. de l'Observatoire, 75014 Paris, France
Corresponding author: P. Salomé, firstname.lastname@example.org)
Accepted: 9 August 2003
The results of a CO line survey in central cluster galaxies with cooling flows are presented. Cold molecular gas is detected with the IRAM 30 m telescope, through CO(1–0) and CO(2–1) emission lines in 6–10 among 32 galaxies. The corresponding gas masses are between and . These results are in agreement with recent CO detections by [CITE]. A strong correlation between the CO emission and the Hα luminosity is also confirmed. Cold gas exists in the center of cooling flow clusters and these detections may be interpreted as evidence of the long searched for very cold residual of the hot cooling gas.
Key words: galaxies: clusters: general / galaxies: cooling flows / galaxies: ISM
© ESO, 2003
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