2015MNRAS.454.2305S

Query : 2015MNRAS.454.2305S

2015MNRAS.454.2305S - Mon. Not. R. Astron. Soc., 454, 2305-2319 (2015/December-2)

Constraints on the richness-mass relation and the optical-SZE positional offset distribution for SZE-selected clusters.

SARO A., BOCQUET S., ROZO E., BENSON B.A., MOHR J., RYKOFF E.S., SOARES-SANTOS M., BLEEM L., DODELSON S., MELCHIOR P., SOBREIRA F., UPADHYAY V., WELLER J., ABBOTT T., ABDALLA F.B., ALLAM S., ARMSTRONG R., BANERJI M., BAUER A.H., BAYLISS M., BENOIT-LEVY A., BERNSTEIN G.M., BERTIN E., BRODWIN M., BROOKS D., BUCKLEY-GEER E., BURKE D.L., CARLSTROM J.E., CAPASSO R., CAPOZZI D., CARNERO ROSELL A., CARRASCO KIND M., CHIU I., COVARRUBIAS R., CRAWFORD T.M., CROCCE M., D'ANDREA C.B., DA COSTA L.N., DEPOY D.L., DESAI S., DE HAAN T., DIEHL H.T., DIETRICH J.P., DOEL P., CUNHA C.E., EIFLER T.F., EVRARD A.E., FAUSTI NETO A., FERNANDEZ E., FLAUGHER B., FOSALBA P., FRIEMAN J., GANGKOFNER C., GAZTANAGA E., GERDES D., GRUEN D., GRUENDL R.A., GUPTA N., HENNIG C., HOLZAPFEL W.L., HONSCHEID K., JAIN B., JAMES D., KUEHN K., KUROPATKIN N., LAHAV O., LI T.S., LIN H., MAIA M.A.G., MARCH M., MARSHALL J.L., MARTINI P., McDONALD M., MILLER C.J., MIQUEL R., NORD B., OGANDO R., PLAZAS A.A., REICHARDT C.L., ROMER A.K., ROODMAN A., SAKO M., SANCHEZ E., SCHUBNELL M., SEVILLA I., SMITH R.C., STALDER B., STARK A.A., STRAZZULLO V., SUCHYTA E., SWANSON M.E.C., TARLE G., THALER J., THOMAS D., TUCKER D., VIKRAM V., VON DER LINDEN A., WALKER A.R., WECHSLER R.H., WESTER W., ZENTENO A. and ZIEGLER K.E.

Abstract (from CDS):

We cross-match galaxy cluster candidates selected via their Sunyaev-Zel'dovich effect (SZE) signatures in 129.1 deg2 of the South Pole Telescope 2500d SPT-SZ survey with optically identified clusters selected from the Dark Energy Survey science verification data. We identify 25 clusters between 0.1 ≲ z ≲ 0.8 in the union of the SPT-SZ and redMaPPer (RM) samples. RM is an optical cluster finding algorithm that also returns a richness estimate for each cluster. We model the richness λ-mass relation with the following function <lnλ{verbar}M500> ∝ BλlnM500 + CλlnE(z) and use SPT-SZ cluster masses and RM richnesses λ to constrain the parameters. We find B_λ= 1.14^+0.21_-0.18 and C_λ=0.73^+0.77_-0.75. The associated scatter in mass at fixed richness is σ_lnM|λ = 0.18^+0.08_-0.05 at a characteristic richness λ = 70. We demonstrate that our model provides an adequate description of the matched sample, showing that the fraction of SPT-SZ-selected clusters with RM counterparts is consistent with expectations and that the fraction of RM-selected clusters with SPT-SZ counterparts is in mild tension with expectation. We model the optical-SZE cluster positional offset distribution with the sum of two Gaussians, showing that it is consistent with a dominant, centrally peaked population and a subdominant population characterized by larger offsets. We also cross-match the RM catalogue with SPT-SZ candidates below the official catalogue threshold significance ξ = 4.5, using the RM catalogue to provide optical confirmation and redshifts for 15 additional clusters with ξ ∈ [4, 4.5].

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): catalogues - methods: data analysis - galaxies: abundances - galaxies: clusters: general - galaxies: haloes - galaxies: statistics - cosmology: miscellaneous - large-scale structure of Universe

CDS comments: SPT-CL J0516-5345, SPT-CL J0516-5435 and SPT-CL J0516-5349 are probable misprints for SPT-CL J0516-5430.

Simbad objects: 41

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Number of rows : 41
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 ACT-CL J0417.3-4748 ClG 04 17 21.3437 -47 48 46.370           ~ 37 0
3 SPT-CL J0422-5140 ClG 04 22 26.36 -51 40 29.7           ~ 9 0
4 MARD J042315.4-550711 ClG 04 23 16.2 -55 06 34           ~ 7 0
5 SPT-CL J0428-6049 ClG 04 28 07.0 -60 49 49           ~ 9 0
6 SPT-CL J0429-5233 ClG 04 29 43.6 -52 33 39           ~ 8 0
7 SPT-CL J0431-5353 ClG 04 31 53 -53 53.8           ~ 3 0
8 ACT-CL J0432.9-5630 ClG 04 33 00.5 -56 30 14           ~ 15 0
9 SPT-CL J0437-5307 ClG 04 37 02.4 -53 07 14           ~ 8 0
10 PSZSPT J0438-4629 ClG 04 38 15 -46 29.3           ~ 4 0
11 ACT-CL J0438.2-5419 ClG 04 38 17.70 -54 19 20.7           ~ 78 0
12 MARD J043828.1-490632 ClG 04 38 39.6 -49 06 31           ~ 6 0
13 ACT-CL J0439.2-4600 ClG 04 39 13.9 -46 00 48           ~ 19 0
14 ACT-CL J0439.7-5330 ClG 04 39 42.5110 -53 30 03.914           ~ 11 0
15 SPT-CL J0439-5611 ClG 04 39 55 -56 11.5           ~ 2 0
16 ACT-CL J0440.9-4743 ClG 04 40 52.3 -47 43 16           ~ 7 0
17 ACT-CL J0440.9-4658 ClG 04 40 53.5 -46 57 57           ~ 14 0
18 ACO 3284 ClG 04 41 19.785 -45 03 05.80           ~ 16 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 J0449-5908 ClG 04 49 53 -59 08.5           ~ 2 0
24 ACO 3292 ClG 04 49 54 -44 40.3           ~ 44 0
25 SPT-CL J0451-4910 ClG 04 51 33 -49 10.7           ~ 3 0
26 MARD J045150.7-505815 ClG 04 51 45 -50 57.9           ~ 4 0
27 ACT-CL J0452.0-4805 ClG 04 52 02.7457 -48 05 59.902           ~ 8 0
28 SPT-CL J0453-5027 ClG 04 53 14 -50 27.1           ~ 2 0
29 SPT-CL J0456-4531 ClG 04 56 24 -45 31.4           ~ 3 0
30 ACT-CL J0456.4-5116 ClG 04 56 28.1 -51 16 35           ~ 31 0
31 ACO 3298 ClG 04 58 15 -57 41.5           ~ 8 0
32 PSZRX G251.44-37.94 ClG 05 00 50.6 -45 51 23           ~ 8 0
33 SPT-CL J0501-4717 ClG 05 01 06 -47 17.6           ~ 2 0
34 SPT-CL J0502-6048 ClG 05 02 53.5 -60 48 40           ~ 7 0
35 SPT-CL J0513-5901 ClG 05 13 06 -59 01.7           ~ 2 0
36 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 114 0
37 SPT-CL J0518-5740 ClG 05 18 02 -57 40.2           ~ 3 0
38 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
39 SPT-CL J0532-5752 ClG 05 32 57 -57 52.6           ~ 2 0
40 SPT-CL J0534-5937 ClG 05 34 24.4 -59 37 44           ~ 11 0
41 SPT-CL J0535-5956 ClG 05 35 10.4 -59 56 26           ~ 6 0

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