2017A&A...603A..80M

Query : 2017A&A...603A..80M

2017A&A...603A..80M - Astronomy and Astrophysics, volume 603A, 80-80 (2017/7-1)

Radial metal abundance profiles in the intra-cluster medium of cool-core galaxy clusters, groups, and ellipticals.

MERNIER F., DE PLAA J., KAASTRA J.S., ZHANG Y.-Y., AKAMATSU H., GU L., KOSEC P., MAO J., PINTO C., REIPRICH T.H., SANDERS J.S., SIMIONESCU A. and WERNER N.

Abstract (from CDS):

The hot intra-cluster medium (ICM) permeating galaxy clusters and groups is not pristine, as it has been continuously enriched by metals synthesised in Type Ia (SNIa) and core-collapse (SNcc) supernovae since the major epoch of star formation (z~=2-3). The cluster/group enrichment history and mechanisms responsible for releasing and mixing the metals can be probed via the radial distribution of SNIa and SNcc products within the ICM. In this paper, we use deep XMM-Newton/EPIC observations from a sample of 44 nearby cool-core galaxy clusters, groups, and ellipticals (CHEERS) to constrain the average radial O, Mg, Si, S, Ar, Ca, Fe, and Ni abundance profiles. The radial distributions of all these elements, averaged over a large sample for the first time, represent the best constrained profiles available currently. Specific attention is devoted to a proper modelling of the EPIC spectral components, and to other systematic uncertainties that may affect our results. We find an overall decrease of the Fe abundance with radius out to ∼0.9r500 and ∼0.6r500 for clusters and groups, respectively, in good agreement with predictions from the most recent hydrodynamical simulations. The average radial profiles of all the other elements (X) are also centrally peaked and, when rescaled to their average central X/Fe ratios, follow well the Fe profile out to at least ∼0.5r500. As predicted by recent simulations, we find that the relative contribution of SNIa (SNcc) to the total ICM enrichment is consistent with being uniform at all radii, both for clusters and groups using two sets of SNIa and SNcc yield models that reproduce the X/Fe abundance pattern in the core well. In addition to implying that the central metal peak is balanced between SNIa and SNcc, our results suggest that the enriching SNIa and SNcc products must share the same origin and that the delay between the bulk of the SNIa and SNcc explosions must be shorter than the timescale necessary to diffuse out the metals. Finally, we report an apparent abundance drop in the very core of 14 systems (∼32% of the sample). Possible origins of these drops are discussed.

Abstract Copyright: © ESO, 2017

Journal keyword(s): X-rays: galaxies: clusters - galaxies: clusters: general - galaxies: clusters: intracluster medium - intergalactic medium - galaxies: abundances - supernovae: general - supernovae: general

Simbad objects: 62

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Number of rows : 62
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 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 909 0
2 ACO 133 ClG 01 02 41.5 -21 52 53           ~ 368 1
3 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 440 3
4 ACO 189 ClG 01 23 40.4 +01 38 38           ~ 100 1
5 NAME NGC 507 Group GrG 01 23.7 +33 15           ~ 80 0
6 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 698 1
7 2A 0251+413 ClG 02 54 32.2 +41 35 10           ~ 315 1
8 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 311 1
9 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2257 1
10 NGC 1316 BL? 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1387 1
11 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1570 1
12 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1827 0
13 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 383 1
14 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 751 1
15 NGC 1550 BiC 04 19 37.9450450152 +02 24 35.918168940   14.0       ~ 176 1
16 NAME NGC 1550 Group ClG 04 19 38.0 +02 24 36           ~ 42 0
17 ClG 0422-09 ClG 04 25 51.02 -08 33 38.5           ~ 91 0
18 ACO 496 ClG 04 33 38.8 -13 15 59           ~ 694 2
19 NAME Hya A LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1012 1
20 ACO 780 ClG 09 18 30 -12 15.7           ~ 453 0
21 NGC 3411 EmG 10 50 26.0811795768 -12 50 42.313849764   9.0   11.60   ~ 74 1
22 NAME NGC 3411 Group GrG 10 50 26.9 -12 50 26           ~ 47 0
23 NAME NGC 4073 Group GrG 12 04 44.08 +01 48 40.9     13.53     ~ 280 0
24 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1223 0
25 NAME NGC 4261 Group GrG 12 20 02.3 +05 20 24     12.9     ~ 41 0
26 NGC 4325 BiC 12 23 06.662 +10 37 16.45   15.0       ~ 128 1
27 NAME NGC 4325 Group GrG 12 23 18.2 +10 37 19           ~ 53 0
28 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1762 2
29 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1084 1
30 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6643 0
31 NAME Vir B Cluster GrG 12 29.8 +08 00           ~ 132 0
32 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2093 2
33 NAME Virgo A Cluster ClG 12 30 49.2 +12 23 30           ~ 140 0
34 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7193 3
35 M 89 LIN 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 995 2
36 NAME NGC 4636 Group GrG 12 42 49.5 +02 41 08           ~ 562 0
37 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1117 1
38 M 60 GiP 12 43 39.9680 +11 33 09.696   10.3       ~ 1348 1
39 NAME M 60 Group GrG 12 43.7 +11 33           ~ 6 0
40 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 1066 2
41 HCG 62 CGG 12 53 05.6 -09 12 21           ~ 306 0
42 NAME NGC 5044 Group GrG 13 14 22.7 -16 32 04           ~ 181 0
43 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 501 0
44 ACO 1795 ClG 13 48 50.48 +26 35 07.4           ~ 1267 0
45 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 184 3
46 ClG J1415+3611 ClG 14 15 11.1 +36 12 03           ~ 78 1
47 ACO 1991 ClG 14 54 41.53 +18 38 08.4           ~ 330 1
48 NGC 5813 LIN 15 01 11.2302420864 +01 42 07.141569696 12.00 11.45 10.46 10.06   ~ 637 1
49 BAX 225.2969+01.7020 ClG 15 01 11.86 +01 41 53.2           ~ 42 0
50 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25           ~ 151 0
51 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 850 1
52 ACO 2029 ClG 15 10 56.2 +05 44 42           ~ 943 0
53 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 730 1
54 ACT-CL J1521.8+0742 ClG 15 21 55.14 +07 41 27.2     15.13     ~ 311 0
55 ACO 2199 ClG 16 28 43.31 +39 34 07.6           ~ 1171 1
56 NAME LHB X 16 42.0 +02 19           ~ 346 0
57 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 258 1
58 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 539 0
59 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 247 0
60 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 335 3
61 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 380 1
62 NAME M 84 Group GrG ~ ~           ~ 2 0

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