2017MNRAS.469.3738S

Query : 2017MNRAS.469.3738S

2017MNRAS.469.3738S - Mon. Not. R. Astron. Soc., 469, 3738-3761 (2017/August-2)

HICOSMO - cosmology with a complete sample of galaxy clusters - I. Data analysis, sample selection and luminosity-mass scaling relation.

SCHELLENBERGER G. and REIPRICH T.H.

Abstract (from CDS):

The X-ray regime, where the most massive visible component of galaxy clusters, the intracluster medium, is visible, offers directly measured quantities, like the luminosity, and derived quantities, like the total mass, to characterize these objects. The aim of this project is to analyse a complete sample of galaxy clusters in detail and constrain cosmological parameters, like the matter density, Ωm, or the amplitude of initial density fluctuations, σ8. The purely X-ray flux-limited sample (HIFLUGCS) consists of the 64 X-ray brightest galaxy clusters, which are excellent targets to study the systematic effects, that can bias results. We analysed in total 196 Chandra observations of the 64 HIFLUGCS clusters, with a total exposure time of 7.7 Ms. Here, we present our data analysis procedure (including an automated substructure detection and an energy band optimization for surface brightness profile analysis) that gives individually determined, robust total mass estimates. These masses are tested against dynamical and Planck Sunyaev-Zeldovich (SZ) derived masses of the same clusters, where good overall agreement is found with the dynamical masses. The Planck SZ masses seem to show a mass-dependent bias to our hydrostatic masses; possible biases in this mass-mass comparison are discussed including the Planck selection function. Furthermore, we show the results for the (0.1-2.4) keV luminosity versus mass scaling relation. The overall slope of the sample (1.34) is in agreement with expectations and values from literature. Splitting the sample into galaxy groups and clusters reveals, even after a selection bias correction, that galaxy groups exhibit a significantly steeper slope (1.88) compared to clusters (1.06).

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: intracluster medium - cosmological parameters - large-scale structure of Universe - cosmology: observations - X-rays: galaxies: clusters - X-rays: galaxies: clusters

VizieR on-line data: <Available at CDS (J/MNRAS/469/3738): tableb2.dat tableb3.dat tableb1.dat>

Simbad objects: 66

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Number of rows : 66
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 909 0
2 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 555 2
3 ACO 133 ClG 01 02 41.5 -21 52 53           ~ 368 1
4 NAME NGC 507 Group GrG 01 23.7 +33 15           ~ 80 0
5 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 699 1
6 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 399 3
7 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 396 0
8 ACO 401 ClG 02 58 56.9 +13 34 56           ~ 566 0
9 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7066 0
10 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 311 1
11 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1827 0
12 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 383 1
13 BAX 055.3242+15.3961 ClG 03 41 16.9 +15 24 27           ~ 40 0
14 ACO 3158 ClG 03 42 39.6 -53 37 50           ~ 304 0
15 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 502 0
16 NAME NGC 1550 Group ClG 04 19 38.0 +02 24 36           ~ 42 0
17 ClG 0422-09 ClG 04 25 51.02 -08 33 38.5           ~ 91 0
18 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 410 0
19 ACO 496 ClG 04 33 38.8 -13 15 59           ~ 694 2
20 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 305 0
21 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 202 1
22 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 209 0
23 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 297 1
24 ACO 754 ClG 09 09 08.4 -09 39 58           ~ 666 1
25 ACO 780 ClG 09 18 30 -12 15.7           ~ 453 0
26 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 840 1
27 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1076 1
28 NAME NGC 4073 Group GrG 12 04 44.08 +01 48 40.9     13.53     ~ 280 0
29 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 153 0
30 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6645 0
31 NAME NGC 4636 Group GrG 12 42 49.5 +02 41 08           ~ 562 0
32 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 1068 2
33 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 366 1
34 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 304 0
35 ACO 1651 ClG 12 59 22.43 -04 11 47.1           ~ 290 0
36 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4803 2
37 NAME NGC 5044 Group GrG 13 14 22.7 -16 32 04           ~ 181 0
38 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 249 2
39 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 442 2
40 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 314 1
41 ACO 3571 ClG 13 47 28.9 -32 51 57           ~ 284 2
42 ACO 1795 ClG 13 48 50.48 +26 35 07.4           ~ 1267 0
43 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 184 3
44 BAX 220.1796+03.4530 ClG 14 40 34.37 +03 29 49.7     14.31     ~ 119 0
45 ClG J1504-0248 ClG 15 04 07.4 -02 48 15           ~ 175 0
46 ACO 2029 ClG 15 10 56.2 +05 44 42           ~ 943 0
47 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 730 1
48 ACT-CL J1521.8+0742 ClG 15 21 55.14 +07 41 27.2     15.13     ~ 311 0
49 ACO 2065 ClG 15 22 29.3 +27 42 22           ~ 374 0
50 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 397 2
51 ACO 2142 ClG 15 58 14.38 +27 12 57.8           ~ 768 0
52 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 403 0
53 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 563 0
54 ACO 2199 ClG 16 28 43.31 +39 34 07.6           ~ 1171 1
55 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 436 0
56 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 281 0
57 ACO 2256 ClG 17 03 09.4 +78 39 36           ~ 885 1
58 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 568 0
59 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 627 1
60 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 258 1
61 ACO 2589 ClG 23 24 00.5 +16 49 29           ~ 316 1
62 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 539 0
63 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 503 2
64 ACO 2657 ClG 23 44 51.0 +09 08 40           ~ 269 3
65 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 335 3
66 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 380 1

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