2001ApJ...555..191F

Query : 2001ApJ...555..191F

2001ApJ...555..191F - Astrophys. J., 555, 191-204 (2001/July-1)

Temperature and heavy-element abundance profiles of cool clusters of galaxies from ASCA.

FINOGUENOV A., ARNAUD M. and DAVID L.P.

Abstract (from CDS):

We perform a spatially resolved X-ray spectroscopic study of a set of 18 relaxed clusters of galaxies with gas temperatures below 4 keV. Spectral analysis was done using ASCA/SIS data coupled with the spatial information contained in ROSAT/PSPC and Einstein/IPC observations. We derive the temperature profiles using single-temperature fits and also correct for the presence of cold gas at the cluster centers. For all of the clusters in the sample, we derive Si and Fe abundance profiles. For a few of the clusters, we also derive Ne and S abundance profiles. We present a comparison of the elemental abundances derived at similar overdensities as well as element mass-to-light ratios. We conclude that the preferential accretion of low-entropy, low-abundance gas into the potentials of groups and cold clusters can explain most of the observed trends in metallicity. In addition, we discuss the importance of energy input from Type II supernovae on cluster scaling relations and on the relation between the observed scatter in the retainment of Type Ia supernova products with differences between the epoch of cluster formation.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Abundances - Galaxies: Clusters: General - Galaxies: Evolution - Galaxies: Intergalactic Medium - Stars: Supernovae: General - X-Rays: Galaxies

Simbad objects: 23

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Number of rows : 23
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 ACO 194 ClG 01 26 01.3 -01 22 02           ~ 363 2
2 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
3 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 408 3
4 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
5 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
6 ACO 539 ClG 05 16 35.1 +06 27 14           ~ 255 2
7 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
8 ACO 779 ClG 09 20 02.70 +33 45 29.7           ~ 261 0
9 NAME NGC 4104 Group GrG 12 06 19.75 +28 07 08.3           ~ 52 0
10 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
11 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
12 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
13 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
14 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
15 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 414 2
16 BAX 233.1222+04.6817 ClG 15 32 32.02 +04 40 51.6     15.13     ~ 66 0
17 AWM 4 ClG 16 04 52.01 +23 56 26.9     14.38     ~ 141 0
18 NGC 6160 rG 16 27 41.122 +40 55 37.08   14.8       ~ 73 0
19 ACO 2197 ClG 16 27 48.01 +40 58 04.5           ~ 290 0
20 NGC 6173 LIN 16 29 44.8864037664 +40 48 41.890972320   14.0       ~ 180 0
21 BAX 349.3187+18.7197 ClG 23 17 11.184 +18 41 48.87           ~ 97 0
22 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 515 2
23 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 349 3

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