| Issue |
A&A
Volume 412, Number 3, December IV 2003
|
|
|---|---|---|
| Page(s) | 657 - 667 | |
| Section | Extragalactic astronomy | |
| DOI | https://doi.org/10.1051/0004-6361:20031438 | |
| 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, philippe.salome@obspm.fr)
Received:
23
April
2002
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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