2009A&A...508..565D


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET20:30:04

2009A&A...508..565D - Astronomy and Astrophysics, volume 508, 565-574 (2009/12-3)

Metal abundances in the cool cores of galaxy clusters.

DE GRANDI S. and MOLENDI S.

Abstract (from CDS):

We use XMM-Newton data to carry out a detailed study of the Si, Fe and Ni abundances in the cool cores of a representative sample of 26 local clusters. We performed a careful evaluation of the systematic uncertainties related to the instruments, the plasma codes and the spectral modeling, finding that the major source of uncertainty is the plasma codes. Our Si, Fe, Ni, Si/Fe and Ni/Fe distributions feature only moderate spreads (from 20% to 30%) around their mean values strongly suggesting similar enrichment processes at work in all our cluster cores. Our sample-averaged Si/Fe ratio is comparable to those measured in samples of groups and high luminosity ellipticals, implying that the enrichment process in ellipticals, dominant galaxies in groups and BCGs in clusters is quite similar. Although our Si/Fe and Ni/Fe abundance ratios are fairly well constrained, the large uncertainties in the supernova yields prevent us from making a firm assessment of the relative contribution of type Ia and core-collapsed supernovae to the enrichment process. All that can be said with some certainty is that both contribute to the enrichment of cluster cores.

Abstract Copyright:

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

Simbad objects: 37

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Number of rows : 37

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           ~ 805 0
2 2MASS J00415039+4112124 GlC 00 41 50.392 +41 12 12.48 19.134 18.079 16.777 15.937 15.075 ~ 37 0
3 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 659 1
4 2MAXI J0254+416 ClG 02 54 32.2 +41 35 10           ~ 299 1
5 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 291 1
6 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2002 1
7 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 352 1
8 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 475 0
9 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 664 2
10 2MASX J07473129-1917403 BiC 07 47 31.296 -19 17 40.34   19.60       ~ 394 1
11 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 366 0
12 ACO 644 ClG 08 17 24.5 -07 30 46           ~ 206 0
13 NAME Hya A LIN 09 18 05.651 -12 05 43.99   14.38 14.8     ~ 919 1
14 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 784 1
15 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5986 0
16 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6353 3
17 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 992 2
18 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 337 1
19 ACO 1650 ClG 12 58 36.76 -01 43 34.2           ~ 277 0
20 ACO 1651 ClG 12 59 22.43 -04 11 47.1           ~ 277 0
21 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1037 0
22 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 409 2
23 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 286 1
24 ACO 3571 ClG 13 47 28.9 -32 51 57           ~ 266 2
25 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1178 0
26 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 871 0
27 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 687 1
28 NAME NGC 5920 Group ClG 15 21 50.7 +07 42 18     15.13     ~ 291 0
29 ACO 2065 ClG 15 22 42.6 +27 43 21           ~ 348 0
30 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 375 2
31 ACO 2142 ClG 15 58 20.00 +27 14 00.3           ~ 685 0
32 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1115 1
33 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 404 0
34 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2154 2
35 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 502 0
36 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 317 3
37 ACO 4059 ClG 23 56 40.7 -34 40 18           ~ 357 1

    Equat.    Gal    SGal    Ecl

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2021.03.04-20:30:04

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