2021MNRAS.505.3923S

Query : 2021MNRAS.505.3923S

2021MNRAS.505.3923S - Mon. Not. R. Astron. Soc., 505, 3923-3943 (2021/August-2)

Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South.

SCHRABBACK T., BOCQUET S., SOMMER M., ZOHREN H., VAN DEN BUSCH J.L., HERNANDEZ-MARTIN B., HOEKSTRA H., RAIHAN S.F., SCHIRMER M., APPLEGATE D., BAYLISS M., BENSON B.A., BLEEM L.E., DIETRICH J.P., FLOYD B., HILBERT S., HLAVACEK-LARRONDO J., McDONALD M., SARO A., STARK A.A. and WEISSGERBER N.

Abstract (from CDS):

Expanding from previous work, we present weak-lensing (WL) measurements for a total sample of 30 distant (zmedian = 0.93) massive galaxy clusters from the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) Survey, measuring galaxy shapes in Hubble Space Telescope (HST) Advanced Camera for Surveys images. We remove cluster members and preferentially select z >= 1.4 background galaxies via V - I colour, employing deep photometry from VLT/FORS2 and Gemini-South/GMOS. We apply revised calibrations for the WL shape measurements and the source redshift distribution to estimate the cluster masses. In combination with earlier Magellan/Megacam results for lower-redshifts clusters, we infer refined constraints on the scaling relation between the SZ detection significance and the cluster mass, in particular regarding its redshift evolution. The mass scale inferred from the WL data is lower by a factor 0.76+0.10–0.14 (at our pivot redshift z = 0.6) compared to what would be needed to reconcile a flat Planck νΛCDM cosmology (in which the sum of the neutrino masses is a free parameter) with the observed SPT-SZ cluster counts. In order to sensitively test the level of (dis-)agreement between SPT clusters and Planck, further expanded WL follow-up samples are needed.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

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

Simbad objects: 32

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Number of rows : 32
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 J0000.9-5748 ClG 00 01 00 -57 48.5           ~ 57 0
2 SPT-CL J0044-4037 ClG 00 44 29.6 -40 37 42           ~ 4 0
3 PSZSPT J0058-6145 ClG 00 58 21 -61 46.1           ~ 20 0
4 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 296 0
5 ACT-CL J0258.0-5355 ClG 02 58 05.4 -53 55 24           ~ 5 0
6 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 1623 1
7 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1900 0
8 MARD J034055.2-454229 ClG 03 39 33.8 -45 45 13           ~ 5 0
9 ACT-CL J0344.3-5453 ClG 03 44 22.0 -54 52 51           ~ 12 0
10 SPT-CL J0345-6419 ClG 03 45 00.4 -64 19 57           ~ 7 0
11 SPT-CL J0346-5839 ClG 03 46 17.9 -58 39 13           ~ 6 0
12 ACT-CL J0356.3-5337 ClG 03 56 19.6560 -53 37 45.752           ~ 16 0
13 ACT-CL J0422.9-4608 ClG 04 22 59.8 -46 08 37           ~ 10 0
14 ACT-CL J0444.4-5603 ClG 04 44 27.1 -56 03 24           ~ 9 0
15 ACT-CL J0516.9-5754 ClG 05 16 57.6 -57 55 00           ~ 8 0
16 PSZSPT J0530-4139 ClG 05 30 42.1 -41 39 01           ~ 5 0
17 SPT-CL J0533-5005 ClG 05 33 37 -50 05.8           ~ 37 0
18 ACT-CL J0539.9-5744 ClG 05 39 59.538 -57 44 37.28           ~ 20 0
19 ACT-CL J0546.6-5345 ClG 05 46 37.6557 -53 45 33.242           ~ 98 0
20 ACT-CL J0559.7-5249 ClG 05 59 43.20 -52 49 27.1           ~ 63 0
21 ACT-CL J0615.8-5746 ClG 06 15 50.8888 -57 46 36.826           ~ 80 0
22 ACT-CL J0617.1-5507 ClG 06 17 07.4 -55 07 56           ~ 6 0
23 ACT-CL J2040.2-5725 ClG 20 40 13.2 -57 25 18           ~ 19 0
24 ACT-CL J2043.2-5035 ClG 20 43 16.7205 -50 35 30.861           ~ 47 0
25 ACT-CL J2106.0-5844 ClG 21 06 04.3 -58 44 32           ~ 103 0
26 ACT-CL J2228.8-5828 ClG 22 28 51.7 -58 28 07           ~ 9 0
27 SPT-CL J2312-5820 ClG 23 12 00.0 -58 20 31           ~ 10 0
28 PSZSPT J2331-5052 ClG 23 31 51 -50 51.9           ~ 53 0
29 ACT-CL J2337.4-5942 ClG 23 37 24.2 -59 42 17           ~ 52 0
30 ACT-CL J2341.2-5119 ClG 23 41 12.3 -51 19 43           ~ 52 0
31 ACT-CL J2342.7-5411 ClG 23 42 45.6153 -54 11 11.527           ~ 44 0
32 ACT-CL J2359.7-5010 ClG 23 59 44 -50 10.2           ~ 38 0

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