2019MNRAS.485...69S

Query : 2019MNRAS.485...69S

2019MNRAS.485...69S - Mon. Not. R. Astron. Soc., 485, 69-87 (2019/May-1)

Weak-lensing analysis of SPT-selected galaxy clusters using Dark Energy Survey Science Verification data.

STERN C., DIETRICH J.P., BOCQUET S., APPLEGATE D., MOHR J.J., BRIDLE S.L., CARRASCO KIND M., GRUEN D., JARVIS M., KACPRZAK T., SARO A., SHELDON E., TROXEL M.A., ZUNTZ J., BENSON B.A., CAPASSO R., CHIU I., DESAI S., RAPETTI D., REICHARDT C.L., SALIWANCHIK B., SCHRABBACK T., GUPTA N., ABBOTT T.M.C., ABDALLA F.B., AVILA S., BERTIN E., BROOKS D., BURKE D.L., CARNERO ROSELL A., CARRETERO J., CASTANDER F.J., D'ANDREA C.B., DA COSTA L.N., DAVIS C., DE VICENTE J., DIEHL H.T., DOEL P., ESTRADA J., EVRARD A.E., FLAUGHER B., FOSALBA P., FRIEMAN J., GARCIA-BELLIDO J., GAZTANAGA E., GRUENDL R.A., GSCHWEND J., GUTIERREZ G., HOLLOWOOD D., JELTEMA T., KIRK D., KUEHN K., KUROPATKIN N., LAHAV O., LIMA M., MAIA M.A.G., MARCH M., MELCHIOR P., MENANTEAU F., MIQUEL R., PLAZAS A.A., ROMER A.K., SANCHEZ E., SCHINDLER R., SCHUBNELL M., SEVILLA-NOARBE I., SMITH M., SMITH R.C., SOBREIRA F., SUCHYTA E., SWANSON M.E.C., TARLE G., WALKER A.R. (The DES and SPT Collaborations)

Abstract (from CDS):

We present weak-lensing (WL) mass constraints for a sample of massive galaxy clusters detected by the South Pole Telescope (SPT) via the Sunyaev-Zel'dovich effect (SZE). We use griz imaging data obtained from the Science Verification (SV) phase of the Dark Energy Survey (DES) to fit the WL shear signal of 33 clusters in the redshift range 0.25 <= z <= 0.8 with NFW profiles and to constrain a four-parameter SPT mass-observable relation. To account for biases in WL masses, we introduce a WL mass to true mass scaling relation described by a mean bias and an intrinsic, lognormal scatter. We allow for correlated scatter within the WL and SZE mass-observable relations and use simulations to constrain priors on nuisance parameters related to bias and scatter from WL. We constrain the normalization of the ζ-M500 relation, ASZ=12.0–6.7+2.6 when using a prior on the mass slope BSZ from the latest SPT cluster cosmology analysis. Without this prior, we recover ASZ=10.8–5.2+2.3 and BSZ=1.30–0.44+0.22. Results in both cases imply lower cluster masses than measured in previous work with and without WL, although the uncertainties are large. The WL derived value of BSZ is ~20 per cent lower than the value preferred by the most recent SPT cluster cosmology analysis. The method demonstrated in this work is designed to constrain cluster masses and cosmological parameters simultaneously and will form the basis for subsequent studies that employ the full SPT cluster sample together with the DES data.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): gravitational lensing: weak - galaxies: clusters: general - cosmology: observations

Simbad objects: 38

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Number of rows : 38
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 ACT-CL J0040.8-4407 ClG 00 40 49.9 -44 07 50           ~ 43 0
2 ACO S 67 ClG 00 40 59.2469 -44 28 49.113           ~ 14 0
3 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 296 0
4 ACT-CL J0107.4-4854 ClG 01 07 32.6 -48 55 02           ~ 8 0
5 SPT-CL J0412-5106 ClG 04 12 55.5 -51 06 18           ~ 7 0
6 ACT-CL J0417.3-4748 ClG 04 17 21.3437 -47 48 46.370           ~ 37 0
7 SPT-CL J0422-5140 ClG 04 22 26.36 -51 40 29.7           ~ 9 0
8 ACT-CL J0422.9-4608 ClG 04 22 59.8 -46 08 37           ~ 10 0
9 ACT-CL J0426.0-5455 ClG 04 26 02.7598 -54 55 09.371           ~ 28 0
10 SPT-CL J0428-6049 ClG 04 28 07.0 -60 49 49           ~ 9 0
11 SPT-CL J0429-5233 ClG 04 29 43.6 -52 33 39           ~ 8 0
12 ACT-CL J0432.9-5630 ClG 04 33 00.5 -56 30 14           ~ 15 0
13 V* R Dor AB* 04 36 45.59127 -62 04 37.7974 7.84 6.98 5.40 2.71 -0.44 M8III:e 376 0
14 SPT-CL J0437-5307 ClG 04 37 02.4 -53 07 14           ~ 8 0
15 ACT-CL J0438.2-5419 ClG 04 38 17.70 -54 19 20.7           ~ 78 0
16 ACT-CL J0439.2-4600 ClG 04 39 13.9 -46 00 48           ~ 19 0
17 ACT-CL J0439.7-5330 ClG 04 39 42.5110 -53 30 03.914           ~ 11 0
18 ACT-CL J0440.9-4658 ClG 04 40 53.5 -46 57 57           ~ 14 0
19 ACT-CL J0441.8-4855 ClG 04 41 47.8 -48 55 24           ~ 23 0
20 ACT-CL J0444.6-4352 ClG 04 44 38.7 -43 52 18           ~ 9 0
21 MARD J044724.2-505522 ClG 04 47 24.9 -50 55 04           ~ 10 0
22 ACT-CL J0449.0-4901 ClG 04 49 04.8508 -49 01 28.759           ~ 29 0
23 SPT-CL J0451-4952 ClG 04 51 51.9 -49 52 47           ~ 7 0
24 ACT-CL J0452.0-4805 ClG 04 52 02.7457 -48 05 59.902           ~ 8 0
25 ACT-CL J0456.6-5623 ClG 04 56 41.3880 -56 23 02.300           ~ 9 0
26 PSZRX G251.44-37.94 ClG 05 00 50.6 -45 51 23           ~ 8 0
27 SPT-CL J0502-6048 ClG 05 02 53.5 -60 48 40           ~ 7 0
28 ACT-CL J0509.3-5342 ClG 05 09 21.40 -53 42 12.3           ~ 62 0
29 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 114 0
30 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
31 SPT-CL J0529-6051 ClG 05 29 23.8 -60 51 28           ~ 6 0
32 SPT-CL J0534-5937 ClG 05 34 24.4 -59 37 44           ~ 11 0
33 ACT-CL J0539.9-5744 ClG 05 39 59.538 -57 44 37.28           ~ 20 0
34 SPT-CL J0655-5541 ClG 06 55 41.0 -55 41 52           ~ 5 0
35 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
36 ACT-CL J2242.0-4435 ClG 22 42 03.2159 -44 35 13.446           ~ 7 0
37 ACO S 1063 ClG 22 48 45.4 -44 31 42           ~ 395 0
38 ACT-CL J2249.6-4443 ClG 22 49 37.7 -44 42 57           ~ 6 0

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