2003A&A...403..433C

Query : 2003A&A...403..433C

2003A&A...403..433C - Astronomy and Astrophysics, volume 403, 433-442 (2003/5-4)

Distribution of dark and baryonic matter in clusters of galaxies.

CASTILLO-MORALES A. and SCHINDLER S.

Abstract (from CDS):

We present the analysis of baryonic and non-baryonic matter distribution in a sample of ten nearby clusters (0.03<z<0.09) with temperatures between 4.7 and 9.4keV. These galaxy clusters are studied in detail using X-ray data and global physical properties are determined. Correlations between these quantities are analysed and compared with the results for distant clusters. We find an interesting correlation between the extent of the intra-cluster gas relative to the dark matter distribution. The extent of the gas relative to the extent of the dark matter tends to be larger in less massive clusters. This correlation might give us some hints on non-gravitational processes in clusters. We do not see evolution in the gas mass fraction out to a redshift of unity. Within r₅₀₀, the mean gas mass fraction obtained is (0.16±0.02)h₅₀^–3/2.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - intergalactic medium - cosmology: observations - cosmology: theory - dark matter - X-rays: galaxies: clusters

Simbad objects: 14

Full paper

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Number of rows : 14

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2023	#notes
1	ACO 401	ClG	02 58 56.9	+13 34 56	~	546	0
2	ACO 3112	ClG	03 17 52.4	-44 14 35	~	301	1
3	ACO 478	ClG	04 13 20.7	+10 28 35	~	488	0
4	ACO 496	ClG	04 33 30.3838	-13 14 21.584	~	678	2
5	ACO 644	ClG	08 17 24.5	-07 30 46	~	216	0
6	ClG J0849+4452	ClG	08 48 56.3	+44 52 16	~	106	1
7	ClG J0947+7623	ClG	09 47 12.9	+76 23 13	~	141	1
8	ClG J1120+4318	ClG	11 20 07.6	+43 18 07	~	58	0
9	ACO 1651	ClG	12 59 22.43	-04 11 47.1	~	281	0
10	ACO 3571	ClG	13 47 28.9	-32 51 57	~	276	2
11	ACO 1795	ClG	13 49 00.5	+26 35 07	~	1220	0
12	ACO 1835	ClG	14 01 02.07	+02 52 43.2	~	669	1
13	ACO 2029	ClG	15 10 58.7	+05 45 42	~	909	0
14	ACO 2199	ClG	16 28 37.0	+39 31 28	~	1143	1

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