2009ApJ...698..317A

Query : 2009ApJ...698..317A

2009ApJ...698..317A - Astrophys. J., 698, 317-323 (2009/June-2)

Redshift evolution in the iron abundance of the intracluster medium.

ANDERSON M.E., BREGMAN J.N., BUTLER S.C. and MULLIS C.R.

Abstract (from CDS):

Clusters of galaxies provide a closed box within which one can determine the chemical evolution of the gaseous baryons with cosmic time. We studied this metallicity evolution in the hot X-ray emitting baryons through an analysis of XMM-Newton observations of 29 galaxy clusters in the redshift range, 0.3 < z < 1.3. Taken alone, this data set does not show evidence for significant evolution. However, when we also include a comparable sample of 115 clusters observed with Chandra and a lower redshift sample of 70 clusters observed with XMM at z < 0.3, there is definitive evidence for a decrease in the metallicity. This decrease is approximately a factor of two from z = 0 to z ~ 1, over which we find a least-squares best-fit line Z(z)/Z☉= (0.46 ± 0.05) - (0.38±0.03)z. The greatest uncertainty in the evolution comes from poorly constrained metallicities in the highest redshift bin.

Abstract Copyright: ∼

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

Simbad objects: 29

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Number of rows : 29
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 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 517 0
2 ZwCl 0024+1652 ClG 00 26 35.6 +17 09 32     18.35     ~ 648 1
3 ClG 0302+17 ClG 03 05 19.0 +17 28 38     21.00     ~ 58 0
4 ClG J0337-2522 ClG 03 37 44.9 -25 22 39           ~ 22 0
5 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 368 0
6 ACO S 506 ClG 05 01 04.4 -24 24 41           ~ 60 0
7 BAX 076.3329-28.8181 ClG 05 05 19.9 -28 49 05           ~ 16 0
8 ClG J0847+3449 ClG 08 47 11.3 +34 49 16           ~ 27 0
9 ACO 851 ClG 09 43 01.2 +46 59 54   18.9       ~ 334 0
10 ClG J1008+5342 ClG 10 08.7 +53 42           ~ 6 0
11 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 458 0
12 ClG J1120+4318 ClG 11 20 07.6 +43 18 07           ~ 65 0
13 ACO 1300 ClG 11 32 00.7 -19 53 34           ~ 168 0
14 ClG 1137+66 ClG 11 40 23.0 +66 08 16     21.0     ~ 141 0
15 ClG J1205+4429 GrG 12 05 52.3 +44 29 22           ~ 24 0
16 ClG 1208+39 ClG 12 11 16.0 +39 11 41     19.8     ~ 38 0
17 ClG J1252-2927 ClG 12 52 54.4 -29 27 17           ~ 158 0
18 ACO 1722 ClG 13 20 08.3 +70 04 33           ~ 63 0
19 ClG 1322+3027 ClG 13 24 48.2 +30 11 34           ~ 68 0
20 ZwCl 1332+5043 ClG 13 34 20.0 +50 30 54           ~ 42 0
21 BAX 205.7046+40.4697 ClG 13 42 49.1 +40 28 11           ~ 22 0
22 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 577 0
23 ClG J1354-0221 ClG 13 54 17.00 -02 22 13.1           ~ 52 0
24 ClG J1415+3611 ClG 14 15 11.1 +36 12 03           ~ 85 1
25 ClG J1517+3127 ClG 15 17 55.9 +31 27 35           ~ 12 0
26 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7 17.819 ~ 155 1
27 ClG 1603+4313 ClG 16 04 23.7 +43 04 52           ~ 134 1
28 ClG 2053-04 ClG 20 56 21.2 -04 37 46   21.0       ~ 168 0
29 BAX 337.1433+20.6131 ClG 22 28 32.6 +20 37 08           ~ 132 0

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