2011MNRAS.418.2754Z


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST04:05:38

2011MNRAS.418.2754Z - Mon. Not. R. Astron. Soc., 418, 2754-2772 (2011/December-3)

Sunyaev–Zel'dovich observations of galaxy clusters out to the virial radius with the Arcminute Microkelvin Imager.

ZWART J.T.L., FEROZ F., DAVIES M.L., FRANZEN T.M.O., GRAINGE K.J.B., HOBSON M.P., HURLEY-WALKER N., KNEISSL R., LASENBY A.N., OLAMAIE M., POOLEY G.G., RODRIGUEZ-GONZALVEZ C., SAUNDERS R.D.E., SCAIFE A.M.M., SCOTT P.F., SHIMWELL T.W., TITTERINGTON D.J. and WALDRAM E.M.

Abstract (from CDS):

We present observations using the Small Array of the Arcminute Microkelvin Imager (AMI; 14–18 GHz) of four Abell and three MACS clusters spanning 0.171–0.686 in redshift. We detect Sunyaev–Zel'dovich (SZ) signals in five of these without any attempt at source subtraction, although strong source contamination is present. With radio-source measurements from high-resolution observations, and under the assumptions of spherical β-model, isothermality and hydrostatic equilibrium, a Bayesian analysis of the data in the visibility plane detects extended SZ decrements in all seven clusters over and above receiver noise, radio sources and primary cosmic microwave background imprints. Formal Bayesian evidence ratios range from 1011:1 to 1043:1 for six of the clusters and 3000:1 for one with substantially fewer data than the others. We present posterior probability distributions for, e.g., total mass and gas fraction averaged over radii internal to which the mean overdensity is 1000, 500 and 200, r200 being the virial radius. Reaching r200involves some extrapolation for the nearer clusters but not for the more distant ones. We find that our estimates of gas fraction are low (compared with most in the literature) and decrease with increasing radius. These results appear to be consistent with the notion that gas temperature in fact falls with distance (away from near the cluster centre) out to the virial radius.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): methods: data analysis - galaxies: clusters: general - cosmic background radiation - cosmology: observations - radio continuum: general

Nomenclature: Table 3: [ZFD2011] ANNNN N N=22, [ZFD2011] MACS JHHMM+DD N N=13.

Simbad objects: 49

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Number of rows : 49

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2585 2
2 MCS J0308.9+2645 ClG 03 08 55.9 +26 45 38           ~ 36 0
3 [ZFD2011] MACS J0308+26 2 Rad 03 08 56.52 +26 44 54.0           ~ 1 0
4 [ZFD2011] MACS J0308+26 3 Rad 03 09 40.14 +26 37 23.6           ~ 1 0
5 [ZFD2011] MACS J0308+26 1 Rad 03 09 42.02 +26 56 30.3           ~ 1 0
6 [ZFD2011] MACS J0717+37 6 Rad 07 16 35.69 +37 39 14.2           ~ 1 0
7 [ZFD2011] MACS J0717+37 2 Rad 07 17 35.91 +37 45 11.2           ~ 1 0
8 [ZFD2011] MACS J0717+37 1 Rad 07 17 36.09 +37 45 56.3           ~ 1 0
9 B3 0714+378 Rad 07 17 36.50 +37 45 23.0           ~ 169 2
10 ClG J0717+3745 ClG 07 17 36.50 +37 45 23.0           ~ 385 0
11 [ZFD2011] MACS J0717+37 3 Rad 07 17 37.14 +37 44 23.1           ~ 1 0
12 [ZFD2011] MACS J0717+37 4 Rad 07 17 41.06 +37 43 15.2           ~ 1 0
13 [ZFD2011] MACS J0717+37 5 Rad 07 18 10.51 +37 49 14.6           ~ 1 0
14 [ZFD2011] MACS J0744+39 4 Rad 07 43 45.99 +39 14 21.5           ~ 1 0
15 [ZFD2011] MACS J0744+39 3 Rad 07 43 58.76 +39 15 02.3           ~ 1 0
16 [ZFD2011] MACS J0744+39 2 Rad 07 44 22.30 +39 25 46.5           ~ 1 0
17 [ZFD2011] MACS J0744+39 1 AG? 07 44 32.9930 +39 32 11.648           ~ 2 0
18 ClG J0744+3927 ClG 07 44 52.5 +39 27 30           ~ 165 0
19 2MASX J07473129-1917403 BiC 07 47 31.296 -19 17 40.34   19.60       ~ 397 1
20 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 366 0
21 [ZFD2011] A611 2 Rad 08 00 09.91 +36 04 15.4           ~ 1 0
22 [ZFD2011] A611 1 Rad 08 00 43.28 +36 14 00.9           ~ 1 0
23 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 232 0
24 [ZFD2011] A773 2 Rad 09 17 06.13 +51 44 54.9           ~ 1 0
25 [ZFD2011] A773 5 Rad 09 17 45.31 +51 43 04.6           ~ 1 0
26 [ZFD2011] A773 7 Rad 09 17 50.67 +51 41 06.1           ~ 1 0
27 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 266 0
28 [ZFD2011] A773 6 Rad 09 17 55.58 +51 43 01.1           ~ 1 0
29 [ZFD2011] A773 3 Rad 09 17 57.02 +51 45 08.0           ~ 1 0
30 [ZFD2011] A773 4 Rad 09 18 01.33 +51 44 13.1           ~ 1 0
31 [ZFD2011] A773 1 Rad 09 18 38.29 +51 50 25.0           ~ 1 0
32 ACO 1413 ClG 11 55 18.0 +23 24 19           ~ 390 0
33 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825107   17.51 17.25     ~ 3866 2
34 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1184 0
35 [ZFD2011] A1914 1 Rad 14 25 10.21 +37 52 35.1           ~ 1 0
36 [ZFD2011] A1914 4 Rad 14 25 40.84 +37 45 50.4           ~ 1 0
37 [ZFD2011] A1914 3 Rad 14 25 48.02 +37 47 50.3           ~ 1 0
38 [ZFD2011] A1914 5 Rad 14 25 50.53 +37 45 10.3           ~ 1 0
39 [ZFD2011] A1914 6 Rad 14 25 58.53 +37 44 00.1           ~ 1 0
40 ACO 1914 ClG 14 26 01.3 +37 49 36           ~ 280 0
41 [ZFD2011] A1914 2 Rad 14 27 24.75 +37 46 33.8           ~ 1 0
42 [ZFD2011] A2218 4 Rad 16 33 18.18 +66 00 50.6           ~ 1 0
43 [ZFD2011] A2218 6 Rad 16 34 46.36 +65 55 18.6           ~ 1 0
44 [LBG2007] ACO 2218 1 Rad 16 35 21.976 +66 13 19.71           ~ 6 0
45 [ZFD2011] A2218 5 Rad 16 35 39.78 +65 58 12.0           ~ 1 0
46 [RS2005] ACO 2218 201 GiC 16 35 47.3324101119 +66 14 44.490258767   20.105 18.517     ~ 15 0
47 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 784 1
48 [ZFD2011] A2218 2 Rad 16 36 15.74 +66 14 27.0           ~ 1 0
49 [ZFD2011] A2218 7 Rad 16 37 22.56 +66 21 18.4           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.05.17-04:05:38

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