2004ApJ...609..603H

Query : 2004ApJ...609..603H

2004ApJ...609..603H - Astrophys. J., 609, 603-616 (2004/July-2)

X-ray temperatures for the extended medium-sensitivity survey high-redshift cluster sample: constraints on cosmology and the dark energy equation of state.

HENRY J.P.

Abstract (from CDS):

We measure the X-ray temperature (and luminosity) with ASCA of all but one cluster in the Einstein Extended Medium-Sensitivity Survey (EMSS) high-redshift (z≥0.3) sample. We compare these data to a complete sample of low-redshift clusters that also has temperature measurements, thereby providing cosmological constraints. Improvements over our previous work include (1) an enlarged high-redshift sample; (2) temperatures for the low-redshift comparison sample that come from the same instrument as the high-redshift sample; (3) the elimination of three EMSS clusters with the same redshift as the target (i.e., not truly serendipitous) and a fourth with an ASCA flux well below the completeness limit; (4) using a theoretical cluster mass function that more closely matches N-body simulations (the Sheth-Torman function); (5) using a cold dark matter power spectrum instead of a power law; (6) using a general cosmology with arbitrary matter density and cosmological constant; (7) using a cosmology that generalizes the cosmological constant to quintessence; (8) including the effects of temperature measurement errors and scatter in the cluster luminosity-temperature relation; and (9) marginalizing over the poorly known normalization of the mass-temperature relation. We find an allowed band in the Ωm0-ΩΛ0plane of different orientation to the band of constraints provided by the supernovae Ia Hubble diagram and the cosmic microwave background fluctuations. All three bands intersect at the same place: Ωm0~0.3, ΩΛ0~0.7. We measure the quintessence equation-of-state parameter to be w=-(0.42±0.21) (68% confidence for one interesting parameter), consistent with previously determined upper limits. We measure the normalization of the mass fluctuation power spectrum to be σ8=0.66±0.16 (68% confidence for three interesting parameters). Systematic errors are larger than the statistical errors only for σ8with our sample; thus the errors for it depend on the details of the marginalization over the temperature-mass normalization.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Cosmological Parameters - Cosmology: Observations - Galaxies: Clusters: General - Cosmology: Large-Scale Structure of Universe - X-Rays: Galaxies

Errata: erratum vol. 732, art. 130 (2011)

Simbad objects: 53

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Number of rows : 53
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 ClG 0014+15 ClG 00 14 41 +15 37.3           ~ 2 0
2 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 517 0
3 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
4 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
5 ClG 0147.8-3941 ClG 01 50 00.9 -39 27 00     19.2     ~ 11 0
6 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 420 0
7 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
8 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
9 ClG 0302+17 ClG 03 05 19.0 +17 28 38     21.00     ~ 58 0
10 ClG 0303+1658 ClG 03 05 31.6 +17 10 02     20.13     ~ 92 0
11 ClG 0303+17 ClG 03 06 19.0 +17 18 50           ~ 49 0
12 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
13 ACO S 400 ClG 03 55 33.29 -36 34 18.5           ~ 40 0
14 ACO 478 ClG 04 13 24.8 +10 27 52           ~ 522 0
15 ClG 0418.3-3844 ClG 04 20 06.2 -38 37 34     18.3     ~ 20 0
16 ACO 3266 ClG 04 31 26.4 -61 25 17           ~ 447 0
17 ACO 496 ClG 04 33 40.8 -13 14 34           ~ 728 2
18 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 368 0
19 ClG 0811+63 ClG 08 16 04.0 +62 52 19     18.5     ~ 23 0
20 ClG 0821+03 ClG 08 24 05.0 +03 26 18     19.0     ~ 15 0
21 ACO 754 ClG 09 09 14.8 -09 40 35           ~ 695 1
22 ClG 1008-12 ClG 10 10 34.1 -12 39 48     18.0     ~ 155 0
23 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
24 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 458 0
25 ClG 1137+66 ClG 11 40 23.0 +66 08 16     21.0     ~ 141 0
26 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
27 ClG 1147+11 ClG 11 49 52.6 +10 46 37     19.0     ~ 29 0
28 ClG 1208+39 ClG 12 11 16.0 +39 11 41     19.8     ~ 38 0
29 RX J1211.5+3901 BLL 12 11 34.20932 +39 00 53.5362     20.0 20.4   ~ 38 0
30 ClG 1224+20 ClG 12 27 14.9 +19 51 06   19.0       ~ 96 0
31 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
32 ClG 1241+17 ClG 12 44 02.6 +16 54 11     19.0     ~ 42 0
33 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
34 ACO 1651 ClG 12 59 27.3 -04 10 49           ~ 307 0
35 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
36 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
37 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
38 2E 3105 ClG 13 35 48.7 +17 09 53     19.9     ~ 20 0
39 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
40 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
41 ZwCl 1358+6245 ClG 13 59 54.3 +62 30 36     18.5     ~ 370 0
42 ClG 1426+01 ClG 14 28 58.9 +01 43 59     19.0     ~ 34 0
43 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
44 ClG J1514+3636 ClG 15 14 22.0 +36 36 22     19.0     ~ 136 0
45 ClG 1532+01 ClG 15 35 02.7 +01 20 58     19.0     ~ 19 0
46 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
47 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 416 0
48 ClG 1621+26 ClG 16 23 35.7 +26 33 50           ~ 145 0
49 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
50 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
51 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 676 1
52 ClG 2053-04 ClG 20 56 21.2 -04 37 46   21.0       ~ 168 0
53 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 390 0

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