2004A&A...420..135T

Query : 2004A&A...420..135T

2004A&A...420..135T - Astronomy and Astrophysics, volume 420135-146 (2004/6-2)

Elemental abundances in the intracluster medium as observed with XMM-Newton.

TAMURA T., KAASTRA J.S., DEN HERDER J.W.A., BLEEKER J.A.M. and PETERSON J.R.

Abstract (from CDS):

XMM-Newton observations of 19 galaxy clusters are used to measure the elemental abundances and their spatial distributions in the intracluster medium. The sample mainly consists of X-ray bright and relaxed clusters with a cD galaxy. Along with detailed Si, S and Fe radial abundance distributions within 300-700kpc in radius, the O abundances are accurately derived in the central region of the clusters. The Fe abundance maxima towards the cluster center, possibly due to the metals from the cD galaxy, are spatially resolved. The Si and S abundances also exhibit central increases in general, resulting in uniform Fe-Si-S ratios within the cluster. In contrast, the O abundances are in general uniform over the cluster. The mean O to Fe ratio within the cluster core is sub-solar, while that of the cluster scale is larger than the solar ratio. These measurements indicate that most of the Fe-Si-S and O in the intracluster medium have different origins, presumably in supernovae Ia and II, respectively. The obtained Fe and O mass are also used to discuss the past star formation history in clusters.

Abstract Copyright: ∼

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

VizieR on-line data: <Available at CDS (J/A+A/420/135): table4.dat table4.tex>

Simbad objects: 20

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Number of rows : 20
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 NGC 533 rG 01 25 31.4074984248 +01 45 33.236656812   13.1 14.11     ~ 237 1
2 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
3 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 420 0
4 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
5 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
6 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
7 ACO 3266 ClG 04 31 26.4 -61 25 17           ~ 447 0
8 ACO 496 ClG 04 33 40.8 -13 14 34           ~ 728 2
9 ACO 754 ClG 09 09 14.8 -09 40 35           ~ 695 1
10 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
11 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
12 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
13 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
14 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
15 ACO 1837 ClG 14 01 36.2 -11 07 48           ~ 106 0
16 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
17 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
18 BAX 233.1222+04.6817 ClG 15 32 32.02 +04 40 51.6     15.13     ~ 66 0
19 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 272 1
20 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 400 1

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