2016A&A...592A...4L


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST15:25:18

2016A&A...592A...4L - Astronomy and Astrophysics, volume 592A, 4-4 (2016/8-1)

The XXL Survey. IV. Mass-temperature relation of the bright cluster sample.

LIEU M., SMITH G.P., GILES P.A., ZIPARO F., MAUGHAN B.J., DEMOCLES J., PACAUD F., PIERRE M., ADAMI C., BAHE Y.M., CLERC N., CHIAPPETTI L., ECKERT D., ETTORI S., LAVOIE S., LE FEVRE J.P., McCARTHY I.G., KILBINGER M., PONMAN T.J., SADIBEKOVA T. and WILLIS J.P.

Abstract (from CDS):

Context. The XXL Survey is the largest survey carried out by XMM-Newton. Covering an area of 50deg2, the survey contains ∼450 galaxy clusters out to a redshift ∼2 and to an X-ray flux limit of ∼5x10–15erg/s/cm2. This paper is part of the first release of XXL results focussed on the bright cluster sample.
Aims. We investigate the scaling relation between weak-lensing mass and X-ray temperature for the brightest clusters in XXL. The scaling relation discussed in this article is used to estimate the mass of all 100 clusters in XXL-100-GC.
Methods. Based on a subsample of 38 objects that lie within the intersection of the northern XXL field and the publicly available CFHTLenS shear catalog, we derive the weak-lensing mass of each system with careful considerations of the systematics. The clusters lie at 0.1<z<0.6 and span a temperature range of T~=1-5keV. We combine our sample with an additional 58 clusters from the literature, increasing the range to T~=1-10keV. To date, this is the largest sample of clusters with weak-lensing mass measurements that has been used to study the mass-temperature relation.
Results. The mass-temperature relation fit (M∝Tb) to the XXL clusters returns a slope b=1.78+0.37–0.32 and intrinsic scatter σlnM|T~=0.53; the scatter is dominated by disturbed clusters. The fit to the combined sample of 96 clusters is in tension with self-similarity, b=1.67±0.12 and σlnM|T~=0.41.
Conclusions. Overall our results demonstrate the feasibility of ground-based weak-lensing scaling relation studies down to cool systems of ∼1 keV temperature and highlight that the current data and samples are a limit to our statistical precision. As such we are unable to determine whether the validity of hydrostatic equilibrium is a function of halo mass. An enlarged sample of cool systems, deeper weak-lensing data, and robust modelling of the selection function will help to explore these issues further.

Abstract Copyright: © ESO, 2016

Journal keyword(s): gravitational lensing: weak - X-rays: galaxies: clusters - galaxies: groups: general - galaxies: clusters: general

Simbad objects: 39

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Number of rows : 39

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 XLSSC 114 ClG 02 01 42 -05 01.9           ~ 5 0
2 [MFP2015] RCC J0202.7-0700 ClG 02 02 15 -07 00.5           ~ 6 0
3 XLSSC 096 ClG 02 03 54 -05 01.6           ~ 6 0
4 XLSSC 106 ClG 02 05 24 -05 43.9           ~ 5 0
5 XLSSC 107 ClG 02 05 25 -07 35.6           ~ 7 0
6 XLSSC 093 ClG 02 06 48 -06 56.9           ~ 5 0
7 XLSSC 108 ClG 02 07 20 -04 49.6           ~ 5 0
8 XLSSC 095 ClG 02 07 51 -05 12.4           ~ 5 0
9 XLSSC 092 ClG 02 08 17 -07 16.6           ~ 6 0
10 XLSSC 109 ClG 02 09 11 -06 20.8           ~ 5 0
11 XLSSC 112 ClG 02 10 03 -05 27.7           ~ 6 0
12 XLSSC 115 ClG 02 10 43 -06 35.3           ~ 5 0
13 XMMXCS J021057.8-061156.8 ClG 02 10 57.80 -06 11 56.8           ~ 9 0
14 XLSSC 084 ClG 02 11 04 -06 12.7           ~ 6 0
15 XLSSC 085 ClG 02 11 29 -06 11.8           ~ 6 0
16 XMMXCS J021226.8-053734.6 ClG 02 12 26.80 -05 37 34.6           ~ 8 0
17 XLSSC 098 ClG 02 12 28 -06 04.6           ~ 7 0
18 XLSSC 099 ClG 02 12 53 -06 12.1           ~ 5 0
19 XLSSC 110 ClG 02 14 09 -05 35.1           ~ 7 0
20 ACO 329 ClG 02 14 40.900 -04 33 21.90           ~ 33 0
21 XCLASS 343 ClG 02 15 29 -04 40.9           ~ 11 0
22 ACO 334 ClG 02 16 12.2 -04 14 31           ~ 13 0
23 ACT-CL J0221.7-0346 ClG 02 21 45.8 -03 46 08           ~ 37 0
24 [RRB2014] RM J022156.4-054531.5 ClG 02 21 56 -05 45.4           ~ 11 0
25 XLSSC 054 ClG 02 25 17 -05 53.3           ~ 7 0
26 RzCS 262 ClG 02 25 24.6 -04 40 45       17.3   ~ 33 0
27 2MASX J02253077-0414183 GrG 02 25 30.6 -04 14 20           ~ 31 0
28 XCLASS 342 ClG 02 25 48 -05 53.7           ~ 11 0
29 NPM1G -05.0105 G 02 26 09.6703118869 -04 58 05.658450961   16.11   14.75   ~ 23 0
30 XLSSC 011 ClG 02 26 10.60 -04 58 11.5           ~ 23 0
31 XLSSC 103 ClG 02 27 33 -05 57.7           ~ 7 0
32 [BPR2008] WL07 ClG 02 27 40.3 -04 51 31           ~ 29 0
33 RzCS 185 ClG 02 28 03.4 -04 51 03           ~ 24 0
34 XLSSC 090 ClG 02 28 29 -04 51.4           ~ 5 0
35 XMMXCS J022917.7-055345.9 ClG 02 29 17.70 -05 53 45.9           ~ 10 0
36 XLSSC 088 ClG 02 30 27 -04 34.9           ~ 5 0
37 [MFP2015] XCC J0230.8-0421 ClG 02 30 53 -04 20.9           ~ 6 0
38 ACO 362 ClG 02 31 42.20 -04 52 53.1           ~ 34 0
39 ACT-CL J0233.6-0530 ClG 02 33 36.270 -05 30 34.52           ~ 8 0

    Equat.    Gal    SGal    Ecl

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2020.07.04-15:25:18

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