2007A&A...467..437Z


Query : 2007A&A...467..437Z

2007A&A...467..437Z - Astronomy and Astrophysics, volume 467, 437-457 (2007/5-4)

Scaling relations and mass calibration of the X-ray luminous galaxy clusters at redshift ∼0.2: XMM-Newton observations.

ZHANG Y.-Y., FINOGUENOV A., BOEHRINGER H., KNEIB J.-P., SMITH G.P., CZOSKE O. and SOUCAIL G.

Abstract (from CDS):

We present the X-ray properties and scaling relations of a flux-limited morphology-unbiased sample of 12 X-ray luminous galaxy clusters at redshift around 0.2 based on XMM-Newton observations. The scaled radial profiles are characterized by a self-similar behavior at radii outside the cluster cores (>0.2r500) for the temperature (T∝r–0.36), surface brightness, entropy (S∝r1.01), gas mass and total mass. The cluster cores contribute up to 70% of the bolometric X-ray luminosity. The X-ray scaling relations and their scatter are sensitive to the presence of the cool cores. Using the X-ray luminosity corrected for the cluster central region and the temperature measured excluding the cluster central region, the normalization agrees to better than 10% for the cool core clusters and non-cool core clusters, irrelevant to the cluster morphology. No evolution of the X-ray scaling relations was observed comparing this sample to the nearby and more distant samples. With the current observations, the cluster temperature and luminosity can be used as reliable mass indicators with the mass scatter within 20%. Mass discrepancies remain between X-ray and lensing and lead to larger scatter in the scaling relations using the lensing masses (e.g. ∼40% for the luminosity-mass relation) than using the X-ray masses (<20%) due to the possible reasons discussed.

Abstract Copyright:

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

Simbad objects: 16

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Number of rows : 16
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 2744 ClG 00 14 20.03 -30 23 17.8           ~ 639 0
2 ZwCl 0024+1652 ClG 00 26 36.0 +17 08 36     18.35     ~ 614 1
3 ACO 68 ClG 00 37 06.2 +09 09 33           ~ 172 0
4 ACO 209 ClG 01 31 57.5 -13 34 35           ~ 271 0
5 ACO 267 ClG 01 52 41 +01 00.4           ~ 213 0
6 ACO 383 ClG 02 48 06.9 -03 29 32           ~ 323 0
7 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 1943 1
8 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 272 0
9 ACO 963 ClG 10 17 09.6 +39 01 00           ~ 370 0
10 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1067 0
11 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 282 0
12 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 655 1
13 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 789 1
14 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 336 0
15 ACO 2390 ClG 21 53 34.6 +17 40 11           ~ 651 2
16 ACO 2667 ClG 23 51 39.37 -26 05 02.7           ~ 161 0

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2022.05.23-04:44:14

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