2011ApJ...737...61M

Query : 2011ApJ...737...61M

2011ApJ...737...61M - Astrophys. J., 737, 61 (2011/August-3)

The Atacama Cosmology Telescope: Sunyaev-Zel'dovich-selected galaxy clusters at 148 GHz in the 2008 survey.

MARRIAGE T.A., ACQUAVIVA V., ADE P.A.R., AGUIRRE P., AMIRI M., APPEL J.W., BARRIENTOS L.F., BATTISTELLI E.S., BOND J.R., BROWN B., BURGER B., CHERVENAK J., DAS S., DEVLIN M.J., DICKER S.R., DORIESE W.B., DUNKLEY J., DUNNER R., ESSINGER-HILEMAN T., FISHER R.P., FOWLER J.W., HAJIAN A., HALPERN M., HASSELFIELD M., HERNANDEZ-MONTEAGUDO C., HILTON G.C., HILTON M., HINCKS A.D., HLOZEK R., HUFFENBERGER K.M., HUGHES D.H., HUGHES J.P., INFANTE L., IRWIN K.D., JUIN J.B., KAUL M., KLEIN J., KOSOWSKY A., LAU J.M., LIMON M., LIN Y.-T., LUPTON R.H., MARSDEN D., MARTOCCI K., MAUSKOPF P., MENANTEAU F., MOODLEY K., MOSELEY H., NETTERFIELD C.B., NIEMACK M.D., NOLTA M.R., PAGE L.A., PARKER L., PARTRIDGE B., QUINTANA H., REESE E.D., REID B., SEHGAL N., SHERWIN B.D., SIEVERS J., SPERGEL D.N., STAGGS S.T., SWETZ D.S., SWITZER E.R., THORNTON R., TRAC H., TUCKER C., WARNE R., WILSON G., WOLLACK E. and YUE Z.

Abstract (from CDS):

We report on 23 clusters detected blindly as Sunyaev-ZEL'DOVICH (SZ) decrements in a 148 GHz, 455 deg2 map of the southern sky made with data from the Atacama Cosmology Telescope 2008 observing season. All SZ detections announced in this work have confirmed optical counterparts. Ten of the clusters are new discoveries. One newly discovered cluster, ACT-CL J0102-4915, with a redshift of 0.75 (photometric), has an SZ decrement comparable to the most massive systems at lower redshifts. Simulations of the cluster recovery method reproduce the sample purity measured by optical follow-up. In particular, for clusters detected with a signal-to-noise ratio greater than six, simulations are consistent with optical follow-up that demonstrated this subsample is 100% pure. The simulations further imply that the total sample is 80% complete for clusters with mass in excess of 6x1014 solar masses referenced to the cluster volume characterized by 500 times the critical density. The Compton y-X-ray luminosity mass comparison for the 11 best-detected clusters visually agrees with both self-similar and non-adiabatic, simulation-derived scaling laws.

Abstract Copyright: ∼

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

Simbad objects: 26

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Number of rows : 26
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 230 0
2 ACO 2941 ClG 01 45 03.60 -53 01 23.4           ~ 53 0
3 ACT-CL J0215-5212 ClG 02 15 12.30 -52 12 25.3           ~ 12 0
4 ACT-CL J0217.1-5244 ClG 02 17 14.3 -52 45 39           ~ 28 0
5 ACT-CL J0232-5257 ClG 02 32 42.709 -52 57 22.61           ~ 27 0
6 ACT-CL J0235.7-5120 ClG 02 35 45.30 -51 21 05.2           ~ 32 0
7 ACT-CL J0237-4939 ClG 02 37 01.668 -49 38 09.68           ~ 22 0
8 ACO S 295 ClG 02 45 35.80 -53 02 16.8           ~ 71 0
9 ACT-S J024539-525756 Rad 02 45 39.0 -52 57 56           ~ 2 0
10 ACT-CL J0304-4921 ClG 03 04 16.00 -49 21 26.3           ~ 29 0
11 ACO 3128 ClG 03 29 50.6 -52 34 48           ~ 177 3
12 ACT-CL J0330-5227 ClG 03 30 56.3 -52 28 19           ~ 46 0
13 ACT-CL J0346.9-5438 ClG 03 46 55.50 -54 38 54.8           ~ 29 0
14 ACT-CL J0438.2-5419 ClG 04 38 17.70 -54 19 20.7           ~ 64 0
15 ACT-CL J0509.3-5342 ClG 05 09 21.40 -53 42 12.3           ~ 55 0
16 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 95 0
17 SPT-CL J0517-5430 ClG 05 17.0 -54 30           ~ 7 0
18 ACT-CL J0528-5259 ClG 05 28 05.30 -52 59 52.8           ~ 45 0
19 ACT-CL J0546-5346 ClG 05 46 35.0 -53 46 04           ~ 86 0
20 ACT-CL J0559.7-5249 ClG 05 59 43.20 -52 49 27.1           ~ 52 0
21 ACT-CL J0616.5-5227 ClG 06 16 34.20 -52 27 13.3           ~ 25 0
22 ACO S 592 ClG 06 38 49.40 -53 58 40.8           ~ 61 0
23 ACO 3402 ClG 06 41 37.80 -49 46 55.0           ~ 6 0
24 ACO 3404 ClG 06 45 29.50 -54 13 37.0           ~ 96 0
25 ClG 0657-56 ClG 06 58 29.6 -55 56 39           ~ 965 1
26 ACT-CL J0707-5522 ClG 07 07 04.70 -55 23 08.5           ~ 15 0

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