2002MNRAS.332L..50F

Query : 2002MNRAS.332L..50F

2002MNRAS.332L..50F - Mon. Not. R. Astron. Soc., 332, L50-L54 (2002/May-3)

The missing soft X-ray luminosity in cluster cooling flows.

FABIAN A.C., ALLEN S.W., CRAWFORD C.S., JOHNSTONE R.M., MORRIS R.G., SANDERS J.S. and SCHMIDT R.W.

Abstract (from CDS):

The gas temperature in the cores of many clusters of galaxies drops inward by about a factor of 3 or more within the central 100-kpc radius. The radiative cooling time drops over the same region from 5 or more Gyr down to below a few 108 yr. Although this indicates that cooling flows are taking place, XMM-Newton spectra show no evidence for strong mass cooling rates of gas below 1-2keV. The soft X-ray luminosity expected from steady cooling flows is missing. Here we outline and test the energetics of a cold mixing model in which gas below 1-2keV falls from the flow and is rapidly cooled by mixing with cold gas. The missing X-ray luminosity can emerge in the ultraviolet, optical and infrared bands, where strong emission nebulosities are commonly seen. We explore further the requirements for any heat sources that balance the radiative cooling in cluster cores.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): galaxies: clusters: general - cooling flows - X-rays: galaxies

Simbad objects: 18

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Number of rows : 18
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
2 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
3 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
4 PKS 0745-19 rG 07 47 31.3247085936 -19 17 40.013334276   19.60       ~ 422 1
5 ClG 0745-1910 ClG 07 47 32.4 -19 18 23           ~ 378 0
6 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
7 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
8 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
9 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
10 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
11 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
12 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
13 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
14 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
15 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
16 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
17 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
18 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0

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