2004A&A...419....7D


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET09:34:31

2004A&A...419....7D - Astronomy and Astrophysics, volume 419, 7-18 (2004/5-3)

On the iron content in rich nearby clusters of galaxies.

DE GRANDI S., ETTORI S., LONGHETTI M. and MOLENDI S.

Abstract (from CDS):

In this paper we study the iron content of a sample of 22 nearby hot clusters observed with BeppoSAX. We find that the global iron mass of clusters is tightly related to the cluster luminosity and that the relatively loose correlation between the iron mass and the cluster temperature follows from the combination of the iron mass vs. luminosity and luminosity vs. temperature correlations. The iron mass is found to scale linearly with the intracluster gas mass, implying that the global iron abundance in clusters is roughly constant. This result suggests that enrichment mechanisms operate at a similar rate in all clusters. By employing population synthesis and chemical enrichment models, we show that the iron mass associated with the abundance excess which is always found in the centre of cool core clusters can be entirely produced by the brightest cluster galaxy (BCG), which is always found at the centre of cool core clusters. The iron mass associated with the excess, the optical magnitude of the BCG and the temperature of the cluster are found to correlate with one another suggesting a link between the properties of the BCG and the hosting cluster. These observational facts lends strength to current formation theories which envisage a strong connection between the formation of the giant BCG and its hosting cluster.

Abstract Copyright:

Journal keyword(s): cooling flows - galaxies: elliptical and lenticular, cD - galaxies: abundances - X-rays: galaxies: clusters - galaxies: clusters: general

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 797 0
2 ACO 119 ClG 00 56 16.8 -01 15 00           ~ 521 2
3 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 1978 1
4 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 351 1
5 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 373 0
6 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 664 2
7 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 274 0
8 2MASX J07473129-1917403 BiC 07 47 31.296 -19 17 40.34   19.60       ~ 394 1
9 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 364 0
10 ACO 754 ClG 09 08 50.1 -09 38 12           ~ 636 1
11 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1002 1
12 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 984 2
13 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4286 2
14 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 285 1
15 ACO 3571 ClG 13 47 28.9 -32 51 57           ~ 266 2
16 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1170 0
17 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 865 0
18 ACO 2142 ClG 15 58 20.00 +27 14 00.3           ~ 681 0
19 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 253 2
20 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1109 1
21 NAME Triangulum Australis Cluster ClG 16 38 16.1 -64 20 50           ~ 109 0
22 ACO 2256 ClG 17 03 43.5 +78 43 03           ~ 835 1
23 ACO 2319 ClG 19 20 45.3 +43 57 43           ~ 419 1

    Equat.    Gal    SGal    Ecl

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2020.11.25-09:34:31

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