2010A&A...518L..47E

Query : 2010A&A...518L..47E

2010A&A...518L..47E - Astronomy and Astrophysics, volume 518, L47-47 (2010/7-2)

Herschel photometry of brightest cluster galaxies in cooling flow clusters.

EDGE A.C., OONK J.B.R., MITTAL R., ALLEN S.W., BAUM S.A., BOEHRINGER H., BREGMAN J.N., BREMER M.N., COMBES F., CRAWFORD C.S., DONAHUE M., EGAMI E., FABIAN A.C., FERLAND G.J., HAMER S.L., HATCH N.A., JAFFE W., JOHNSTONE R.M., McNAMARA B.R., O'DEA C.P., POPESSO P., QUILLEN A.C., SALOME P., SARAZIN C.L., VOIT G.M., WILMAN R.J. and WISE M.W.

Abstract (from CDS):

The dust destruction timescales in the cores of clusters of galaxies are relatively short given their high central gas densities. However, substantial mid-infrared and sub-mm emission has been detected in many brightest cluster galaxies. In this letter we present Herschel PACS and SPIRE photometry of the brightest cluster galaxy in three strong cooling flow clusters, A1068, A2597 and Zw3146. This photometry indicates that a substantial mass of cold dust is present (>3x107M☉) at temperatures significantly lower (20-28K) than previously thought based on limited MIR and/or sub-mm results. The mass and temperature of the dust appear to match those of the cold gas traced by CO with a gas-to-dust ratio of 80-120.

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Journal keyword(s): galaxies: clusters: intracluster medium - galaxies: elliptical and lenticular, cD

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 282 0
2 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 214 0
3 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 688 2
4 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 539 0

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