2016A&A...592A.157M


Query : 2016A&A...592A.157M

2016A&A...592A.157M - Astronomy and Astrophysics, volume 592A, 157-157 (2016/8-1)

Origin of central abundances in the hot intra-cluster medium. I. Individual and average abundance ratios from XMM-Newton EPIC.

MERNIER F., DE PLAA J., PINTO C., KAASTRA J.S., KOSEC P., ZHANG Y.-Y., MAO J. and WERNER N.

Abstract (from CDS):

The hot intra-cluster medium (ICM) is rich in metals, which are synthesised by supernovae (SNe) explosions and accumulate over time into the deep gravitational potential well of clusters of galaxies. Since most of the elements visible in X-rays are formed by type Ia (SNIa) and/or core-collapse (SNcc) supernovae, measuring their abundances gives us direct information on the nucleosynthesis products of billions of SNe since the epoch of the star formation peak (z∼2-3). In this study, we use the EPIC and RGS instruments on board XMM-Newton to measure the abundances of nine elements (O, Ne, Mg, Si, S, Ar, Ca, Fe, and Ni) from a sample of 44 nearby cool-core galaxy clusters, groups, and elliptical galaxies. We find that the Fe abundance shows a large scatter (∼20-40%) over the sample, within 0.2r500 and especially 0.05r500. Unlike the absolute Fe abundance, the abundance ratios (X/Fe) are uniform over the considered temperature range (∼0.6-8keV) and with a limited scatter. In addition to an unprecedented treatment of systematic uncertainties, we provide the most accurate abundance ratios measured so far in the ICM, including Cr/Fe and Mn/Fe which we firmly detected (>4σ with MOS and pn independently). We find that Cr/Fe, Mn/Fe, and Ni/Fe differ significantly from the proto-solar values. However, the large uncertainties in the proto-solar abundances prevent us from making a robust comparison between the local and the intra-cluster chemical enrichments. We also note that, interestingly, and despite the large net exposure time (∼4.5Ms) of our dataset, no line emission feature is seen around ∼3.5keV.

Abstract Copyright: © ESO, 2016

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

Simbad objects: 45

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Number of rows : 45
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 841 0
2 ACO 133 ClG 01 02 39.0 -21 57 15           ~ 350 1
3 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 415 3
4 ACO 189 ClG 01 23 40.4 +01 38 38           ~ 100 1
5 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 677 1
6 2MAXI J0254+416 ClG 02 54 32.2 +41 35 10           ~ 304 1
7 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 297 1
8 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2102 1
9 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1288 1
10 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1514 1
11 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 358 1
12 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 711 1
13 NGC 1550 BiC 04 19 37.9450450152 +02 24 35.918168940   14.0       ~ 165 1
14 ClG 0422-09 ClG 04 25 51.02 -08 33 38.5           ~ 89 0
15 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 670 2
16 NAME Hya A LIN 09 18 05.6783347248 -12 05 43.634531472   14.38 14.8     ~ 961 1
17 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 807 1
18 NGC 3411 BiC 10 50 26.0811795768 -12 50 42.313849764   9.0   11.60   ~ 69 1
19 NAME NGC 4073 Group GrG 12 04 21.7 +01 50 19     13.53     ~ 255 0
20 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1171 0
21 NGC 4325 BiC 12 23 06.662 +10 37 16.45   15.0       ~ 123 1
22 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1699 2
23 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1048 1
24 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 2026 2
25 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6684 3
26 M 89 LIN 12 35 39.8073444 +12 33 22.830809 11.29 10.73 9.75     ~ 962 2
27 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1077 1
28 M 60 GiP 12 43 39.9708251928 +11 33 09.688174056   10.3       ~ 1303 1
29 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 1018 2
30 HCG 62 CGG 12 53 05.6 -09 12 21           ~ 299 0
31 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 477 0
32 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1203 0
33 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 174 3
34 ACO 1991 ClG 14 54 30.2 +18 37 51           ~ 315 1
35 NGC 5813 LIN 15 01 11.2302420864 +01 42 07.141569696 12.00 11.45 10.46 10.06   ~ 608 1
36 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 815 1
37 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 893 0
38 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 702 1
39 NAME NGC 5920 Group ClG 15 21 50.7 +07 42 18     15.13     ~ 295 0
40 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1129 1
41 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 242 1
42 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 517 0
43 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 227 0
44 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 326 3
45 ACO 4059 ClG 23 56 40.7 -34 40 18           ~ 367 1

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2022.07.06-10:14:53

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