2010ApJ...723.1523M


Query : 2010ApJ...723.1523M

2010ApJ...723.1523M - Astrophys. J., 723, 1523-1541 (2010/November-2)

The Atacama Cosmology Telescope: physical properties and purity of a galaxy cluster sample selected via the Sunyaev-Zel'dovich effect.

MENANTEAU F., GONZALEZ J., JUIN J.-B., MARRIAGE T.A., REESE E.D., ACQUAVIVA V., AGUIRRE P., APPEL J.W., BAKER A.J., BARRIENTOS L.F., BATTISTELLI E.S., BOND J.R., DAS S., DESHPANDE A.J., DEVLIN M.J., DICKER S., DUNKLEY J., DUNNER R., ESSINGER-HILEMAN T., FOWLER J.W., HAJIAN A., HALPERN M., HASSELFIELD M., HERNANDEZ-MONTEAGUDO C., HILTON M., HINCKS A.D., HLOZEK R., HUFFENBERGER K.M., HUGHES J.P., INFANTE L., IRWIN K.D., KLEIN J., KOSOWSKY A., LIN Y.-T., MARSDEN D., MOODLEY K., NIEMACK M.D., NOLTA M.R., PAGE L.A., PARKER L., PARTRIDGE B., SEHGAL N., SIEVERS J., SPERGEL D.N., STAGGS S.T., SWETZ D., SWITZER E., THORNTON R., TRAC H., WARNE R. and WOLLACK E.

Abstract (from CDS):

We present optical and X-ray properties for the first confirmed galaxy cluster sample selected by the Sunyaev-Zel'dovich effect (SZE) from 148 GHz maps over 455 deg2 of sky made with the Atacama Cosmology Telescope (ACT). These maps, coupled with multi-band imaging on 4 m class optical telescopes, have yielded a sample of 23 galaxy clusters with redshifts between 0.118 and 1.066. Of these 23 clusters, 10 are newly discovered. The selection of this sample is approximately mass limited and essentially independent of redshift. We provide optical positions, images, redshifts, and X-ray fluxes and luminosities for the full sample, and X-ray temperatures of an important subset. The mass limit of the full sample is around 8.0x1014 M, with a number distribution that peaks around a redshift of 0.4. For the 10 highest significance SZE-selected cluster candidates, all of which are optically confirmed, the mass threshold is 1x1015 M and the redshift range is 0.167-1.066. Archival observations from Chandra, XMM-Newton, and ROSAT provide X-ray luminosities and temperatures that are broadly consistent with this mass threshold. Our optical follow-up procedure also allowed us to assess the purity of the ACT cluster sample. Eighty (one hundred) percent of the 148 GHz candidates with signal-to-noise ratios greater than 5.1 (5.7) are confirmed as massive clusters. The reported sample represents one of the largest SZE-selected sample of massive clusters over all redshifts within a cosmologically significant survey volume, which will enable cosmological studies as well as future studies on the evolution, morphology, and stellar populations in the most massive clusters in the universe.

Abstract Copyright:

Journal keyword(s): cosmic background radiation - cosmology: observations - galaxies: clusters: general - galaxies: distances and redshifts - large-scale structure of universe

Nomenclature: Tables 2-6: ACT-CL JHHMM+DDMM N=23. Tables 2-3: [MGJ2010] JHHMMSS.s+DDMMSS.s N=23.

Simbad objects: 52

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Number of rows : 52
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 [MGJ2010] J010252.5-491458.0 BiC 01 02 52.50 -49 14 58.0           ~ 1 0
2 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 194 0
3 SPT-CL J0145-5301 CGG 01 45 03.60 -53 01 23.4           ~ 45 0
4 [MGJ2010] J014503.6-530123.4 BiC 01 45 03.60 -53 01 23.4           ~ 1 0
5 [MGJ2010] J021512.3-521225.3 BiC 02 15 12.2644 -52 12 25.203           ~ 4 0
6 ACT-CL J0215-5212 ClG 02 15 12.30 -52 12 25.3           ~ 12 0
7 [MGJ2010] J021712.6-524449.0 BiC 02 17 12.60 -52 44 49.0           ~ 1 0
8 RXC J0217.2-5244 ClG 02 17 19.0516 -52 43 05.723           ~ 21 0
9 [MGJ2010] J023246.2-525750.0 BiC 02 32 46.20 -52 57 50.0           ~ 1 0
10 SPT-CL J0232-5257 ClG 02 32 46.20 -52 57 50.0           ~ 24 0
11 [MGJ2010] J023545.3-512105.2 BiC 02 35 45.2788182552 -51 21 04.659131772           ~ 4 0
12 ACT-CL J0235-5121 ClG 02 35 45.30 -51 21 05.2           ~ 28 0
13 ACT-CL J0237-4939 ClG 02 37 01.70 -49 38 10.0           ~ 19 0
14 [MGJ2010] J023701.7-493810.0 BiC 02 37 01.7139 -49 38 09.963           ~ 4 0
15 [MGJ2010] J024535.8-530216.8 BiC 02 45 35.80 -53 02 16.8           ~ 1 0
16 ACO S 295 ClG 02 45 35.80 -53 02 16.8           ~ 57 0
17 ACT-CL J0304-4921 ClG 03 04 16.00 -49 21 26.3           ~ 26 0
18 [MGJ2010] J030416.0-492126.3 BiC 03 04 16.0391 -49 21 26.279           ~ 4 0
19 NAME HOR-RET SUPERCL SCG 03 16 -48.0           ~ 60 3
20 ACO 3128 ClG 03 30 34.6 -52 33 12           ~ 172 3
21 RXC J0330.8-5228 ClG 03 30 38.9166 -52 30 08.784           ~ 37 0
22 SMH J033056.8-522813.8 BiC 03 30 56.932 -52 28 13.02           ~ 7 0
23 [MGJ2010] J034655.5-543854.8 BiC 03 46 55.4974 -54 38 54.965           ~ 4 0
24 ACT-CL J0346-5438 ClG 03 46 55.50 -54 38 54.8           ~ 25 0
25 [BRS2016] J043817.63-541920.6 BiC 04 38 17.628 -54 19 20.64           ~ 6 0
26 ACT-CL J0438-5419 ClG 04 38 17.70 -54 19 20.7           ~ 56 0
27 ACT-CL J0509-5345 ClG 05 09.0 -53 45           ~ 2 0
28 SMH J050921.3-534212.2 BiC 05 09 21.371 -53 42 12.75           ~ 7 0
29 LCS-CL J050921-5342.2 ClG 05 09 21.40 -53 42 12.3           ~ 49 0
30 2MASX J05163736-5430017 BiC 05 16 37.369 -54 30 01.67           ~ 7 0
31 ACO S 520 ClG 05 16 37.40 -54 30 01.5           ~ 81 0
32 [MGJ2010] J052805.3-525952.8 BiC 05 28 05.291 -52 59 53.12           ~ 5 0
33 SPT-CL J0528-5300 ClG 05 28 05.30 -52 59 52.8           ~ 42 0
34 1RXS J054638.7-534434 ClG 05 46 35.0 -53 46 04           ~ 78 0
35 SMH J054637.6-534531.3 BiC 05 46 37.57 -53 45 31.3         22.79 ~ 4 0
36 [MGJ2010] J055943.2-524927.1 BiC 05 59 43.200 -52 49 26.25           ~ 5 0
37 SPT-CL J0559-5249 ClG 05 59 43.20 -52 49 27.1           ~ 46 0
38 ACT-CL J0616-5227 ClG 06 16 34.20 -52 27 13.3           ~ 22 0
39 [MGJ2010] J061634.2-522713.3 BiC 06 16 34.2169 -52 27 13.324           ~ 4 0
40 ACO S 592 ClG 06 38 49.40 -53 58 40.8           ~ 53 0
41 [MGJ2010] J063849.4-535840.8 BiC 06 38 49.40 -53 58 40.8           ~ 1 0
42 [MGJ2010] J064137.8-494655.0 BiC 06 41 37.80 -49 46 55.0           ~ 1 0
43 ACO 3402 ClG 06 41 37.80 -49 46 55.0           ~ 6 0
44 2MASX J06413783-4946548 BiC 06 41 37.8029289648 -49 46 54.560250948   17.72   16.10   ~ 3 0
45 [MGJ2010] J064529.5-541337.0 BiC 06 45 29.50 -54 13 37.0           ~ 1 0
46 ACO 3404 ClG 06 45 29.50 -54 13 37.0           ~ 83 0
47 ClG 0657-56 ClG 06 58 29.6 -55 56 39           ~ 885 1
48 [FBC2017] J065835.2-555656.7 BiC 06 58 35.237 -55 56 56.55   20.47   17.65 16.46 ~ 6 0
49 [MGJ2010] J070704.7-552308.5 BiC 07 07 04.6728 -55 23 08.521           ~ 4 0
50 ACT-CL J0707-5522 ClG 07 07 04.70 -55 23 08.5           ~ 14 0
51 ClG J2215-1738 ClG 22 15 58.5 -17 38 03           ~ 97 0
52 ClG J2235-2557 ClG 22 35 20.6 -25 57 42           ~ 141 0

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2022.10.03-01:44:57

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