2016ApJS..222...13G

Query : 2016ApJS..222...13G

2016ApJS..222...13G - Astrophys. J., Suppl. Ser., 222, 13 (2016/January-0)

The Swift AGN and Cluster Survey. II. Cluster confirmation with SDSS data.

GRIFFIN R.D., DAI X., KOCHANEK C.S. and BREGMAN J.N.

Abstract (from CDS):

We study 203 (of 442) Swift AGN and Cluster Survey extended X-ray sources located in the SDSS DR8 footprint to search for galaxy over-densities in three-dimensional space using SDSS galaxy photometric redshifts and positions near the Swift cluster candidates. We find 104 Swift clusters with a >3σ galaxy over-density. The remaining targets are potentially located at higher redshifts and require deeper optical follow-up observations for confirmation as galaxy clusters. We present a series of cluster properties including the redshift, brightest cluster galaxy (BCG) magnitude, BCG-to-X-ray center offset, optical richness, and X-ray luminosity. We also detect red sequences in ∼85% of the 104 confirmed clusters. The X-ray luminosity and optical richness for the SDSS confirmed Swift clusters are correlated and follow previously established relations. The distribution of the separations between the X-ray centroids and the most likely BCG is also consistent with expectation. We compare the observed redshift distribution of the sample with a theoretical model, and find that our sample is complete for z ≲ 0.3 and is still 80% complete up to z ~= 0.4, consistent with the SDSS survey depth. These analysis results suggest that our Swift cluster selection algorithm has yielded a statistically well-defined cluster sample for further study of cluster evolution and cosmology. We also match our SDSS confirmed Swift clusters to existing cluster catalogs, and find 42, 23, and 1 matches in optical, X-ray, and Sunyaev-Zel'dovich catalogs, respectively, and so the majority of these clusters are new detections.

Abstract Copyright: ∼

Journal keyword(s): catalogs - galaxies: clusters: general - galaxies: groups: general - large-scale structure of universe - surveys

VizieR on-line data: <Available at CDS (J/ApJS/222/13): table1.dat>

Simbad objects: 108

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Number of rows : 108
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 [DGK2015] SWCL J002111.4+210438 ClG 00 21 11.4 +21 04 38           ~ 2 0
2 SWXCS J002114+2059.7 ClG 00 21 14.284 +20 59 44.23           ~ 3 0
3 SWXCS J002824+0927.1 ClG 00 28 23.695 +09 27 06.16           ~ 3 0
4 [DGK2015] SWCL J003317.8+193925 ClG 00 33 17.8 +19 39 25           ~ 2 0
5 [DGK2015] SWCL J005136.8+074351 ClG 00 51 36.8 +07 43 51           ~ 2 0
6 [DGK2015] SWCL J012310.5+375549 ClG 01 23 10.5 +37 55 49           ~ 2 0
7 [DGK2015] SWCL J015751.5+170139 ClG 01 57 51.5 +17 01 39           ~ 2 0
8 SWXCS J015753+1659.6 ClG 01 57 53.08 +16 59 33.7           ~ 8 0
9 [DGK2015] SWCL J015803.5+165005 ClG 01 58 03.5 +16 50 05           ~ 2 0
10 SWXCS J020004+0840.4 ClG 02 00 03.4 +08 40 24           ~ 6 0
11 [DGK2015] SWCL J020006.4+084454 ClG 02 00 06.4 +08 44 54           ~ 2 0
12 [DGK2015] SWCL J025547.9+000902 ClG 02 55 47.9 +00 09 02           ~ 2 0
13 ClG J0256+0006 ClG 02 56 32.9 +00 06 12           ~ 42 0
14 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 862 0
15 ACT-CL J0353.0-0043 ClG 03 52 59.58 -00 43 42.5           ~ 6 0
16 [DGK2015] SWCL J054716.7+641156 ClG 05 47 16.7 +64 11 56           ~ 2 0
17 [DGK2015] SWCL J075043.2+310400 ClG 07 50 43.2 +31 04 00           ~ 2 0
18 SWXCS J075901+3244.9 ClG 07 59 00.652 +32 44 52.94           ~ 3 0
19 [DGK2015] SWCL J075908.5+324237 ClG 07 59 08.5 +32 42 37           ~ 2 0
20 [DGK2015] SWCL J080022.5-085931 ClG 08 00 22.5 -08 59 31           ~ 2 0
21 [DGK2015] SWCL J082113.9+320018 ClG 08 21 13.9 +32 00 18           ~ 2 0
22 [DGK2015] SWCL J083340.9+331118 ClG 08 33 40.9 +33 11 18           ~ 2 0
23 ACT-CL J0847.8+1331 ClG 08 47 49.32 +13 31 40.4           ~ 9 0
24 [DGK2015] SWCL J084959.1+521711 ClG 08 49 59.1 +52 17 11           ~ 2 0
25 [DGK2015] SWCL J085523.8+110202 ClG 08 55 23.8 +11 02 02           ~ 2 0
26 [DGK2015] SWCL J085552.1+465925 ClG 08 55 52.1 +46 59 25           ~ 2 0
27 [DGK2015] SWCL J085619.7+470018 ClG 08 56 19.7 +47 00 18           ~ 2 0
28 [DGK2015] SWCL J090714.8+351020 ClG 09 07 14.8 +35 10 20           ~ 2 0
29 [DGK2015] SWCL J092607.0+314854 ClG 09 26 07.0 +31 48 54           ~ 2 0
30 SWXCS J092650+3013.8 ClG 09 26 50.07 +30 13 45.1           ~ 5 0
31 SWXCS J092719+3013.7 ClG 09 27 19.49 +30 13 42.4           ~ 5 0
32 SWXCS J092729+3010.8 ClG 09 27 29.76 +30 10 48.0           ~ 10 0
33 [DGK2015] SWCL J092852.3+002137 ClG 09 28 52.3 +00 21 37           ~ 2 0
34 [DGK2015] SWCL J093041.3+170400 ClG 09 30 41.3 +17 04 00           ~ 2 0
35 SWXCS J093045+1659.5 ClG 09 30 45.24 +16 59 31.4           ~ 5 0
36 [DGK2015] SWCL J095257.1+102440 ClG 09 52 57.1 +10 24 40           ~ 2 0
37 SWXCS J095513+1812.3 ClG 09 55 13.9 +18 12 32           ~ 10 0
38 SWXCS J095515+1804.1 ClG 09 55 15 +18 03.7           ~ 5 0
39 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
40 SWXCS J101341+4306.9 ClG 10 13 41.58 +43 06 55.3           ~ 5 0
41 [DGK2015] SWCL J111736.0+033711 ClG 11 17 36.2 +03 37 12           ~ 5 0
42 [DGK2015] SWCL J113427.6-070208 ClG 11 34 27.6 -07 02 08           ~ 2 0
43 SWXCS J114232+5056.4 ClG 11 42 32.250 +50 56 21.45           ~ 3 0
44 [DGK2015] SWCL J114503.1+600811 ClG 11 45 03.1 +60 08 11           ~ 2 0
45 [DGK2015] SWCL J114553.0+595320 ClG 11 45 53.0 +59 53 20           ~ 2 0
46 SWXCS J115811+4529.1 ClG 11 58 14.3 +45 29 30           ~ 8 0
47 [DGK2015] SWCL J120137.8+104936 ClG 12 01 37.8 +10 49 36           ~ 2 0
48 [DGK2015] SWCL J121628.2+353820 ClG 12 16 27.9 +35 38 22           ~ 5 0
49 [DGK2015] SWCL J121711.8+353745 ClG 12 17 11.8 +35 37 45           ~ 2 0
50 [DGK2015] SWCL J123313.9+210217 ClG 12 33 13.9 +21 02 17           ~ 2 0
51 [DGK2015] SWCL J123612.4+290222 ClG 12 36 12.4 +29 02 22           ~ 2 0
52 [DGK2015] SWCL J124308.5+170639 ClG 12 43 08.5 +17 06 39           ~ 2 0
53 SWXCS J124312+1704.9 ClG 12 43 12.69 +17 04 51.8           ~ 6 0
54 [DGK2015] SWCL J125957.2+155717 ClG 12 59 57.2 +15 57 17           ~ 2 0
55 [DGK2015] SWCL J130332.1+591556 ClG 13 03 32.1 +59 15 56           ~ 2 0
56 [DGK2015] SWCL J130911.8+611521 ClG 13 09 11.8 +61 15 21           ~ 2 0
57 [SPD2011] 33107 ClG 13 10 00.4 +61 25 33           ~ 3 0
58 [DGK2015] SWCL J131521.9+164155 ClG 13 15 21.9 +16 41 55           ~ 2 0
59 SWXCS J133051+4206.8 ClG 13 30 51.61 +42 06 48.0           ~ 5 0
60 SWXCS J133055+4200.3 ClG 13 30 55.32 +42 00 17.1           ~ 5 0
61 [DGK2015] SWCL J135914.0+470528 ClG 13 59 14.0 +47 05 28           ~ 2 0
62 SWXCS J140637+2743.8 ClG 14 06 37.28 +27 43 49.1           ~ 5 0
63 [DGK2015] SWCL J140639.0+273546 ClG 14 06 39.0 +27 35 46           ~ 2 0
64 GRB 060204B gB 14 07 14.900 +27 40 36.40           ~ 93 0
65 [DGK2015] SWCL J140726.4+274738 ClG 14 07 26.4 +27 47 38           ~ 2 0
66 [DGK2015] SWCL J140907.4+242406 ClG 14 09 07.4 +24 24 06           ~ 2 0
67 [DGK2015] SWCL J141221.8+165216 ClG 14 12 21.8 +16 52 16           ~ 2 0
68 SWXCS J143211+3622.4 ClG 14 32 11.197 +36 22 26.30           ~ 3 0
69 [DGK2015] SWCL J144209.2+333414 ClG 14 42 09.2 +33 34 14           ~ 2 0
70 [DGK2015] SWCL J144604.5+203334 ClG 14 46 04.5 +20 33 34           ~ 2 0
71 [DGK2015] SWCL J151550.9+442056 ClG 15 15 50.9 +44 20 56           ~ 2 0
72 ClG J1522+2535 ClG 15 22 52.9 +25 35 27           ~ 11 0
73 [DGK2015] SWCL J152316.4+254754 ClG 15 23 16.4 +25 47 54           ~ 2 0
74 SWXCS J155117+4451.3 ClG 15 51 16.982 +44 51 18.21           ~ 3 0
75 [DGK2015] SWCL J155159.8+445748 ClG 15 51 59.8 +44 57 48           ~ 2 0
76 [DGK2015] SWCL J155555.3+410548 ClG 15 55 55.1 +41 05 49           ~ 5 0
77 [DGK2015] SWCL J155708.6+354100 ClG 15 57 08.6 +35 41 00           ~ 2 0
78 [DGK2015] SWCL J155743.3+353020 ClG 15 57 43.3 +35 30 20           ~ 2 0
79 [DGK2015] SWCL J160637.5+321351 ClG 16 06 37.5 +32 13 51           ~ 2 0
80 [DGK2015] SWCL J160956.9+301052 ClG 16 09 56.9 +30 10 52           ~ 2 0
81 [DGK2015] SWCL J164637.4+363021 ClG 16 46 37.4 +36 30 21           ~ 2 0
82 SWXCS J164956+3130.3 ClG 16 49 56.71 +31 30 21.5           ~ 5 0
83 [DGK2015] SWCL J170542.2+112451 ClG 17 05 42.2 +11 24 51           ~ 2 0
84 [DGK2015] SWCL J170716.1+235208 ClG 17 07 16.1 +23 52 08           ~ 2 0
85 [DGK2015] SWCL J170757.1+235135 ClG 17 07 57.1 +23 51 35           ~ 2 0
86 [DGK2015] SWCL J172011.1+692315 ClG 17 20 11.1 +69 23 15           ~ 2 0
87 [DGK2015] SWCL J200031.1+085259 ClG 20 00 31.1 +08 52 59           ~ 2 0
88 [DGK2015] SWCL J215411.4-001127 ClG 21 54 11.4 -00 11 27           ~ 2 0
89 [DGK2015] SWCL J215411.6-000654 ClG 21 54 11.6 -00 06 54           ~ 2 0
90 [DGK2015] SWCL J215413.2+000413 ClG 21 54 12.8 +00 04 23           ~ 4 0
91 [DGK2015] SWCL J215423.1+000526 ClG 21 54 23.1 +00 05 26           ~ 2 0
92 [DGK2015] SWCL J215520.0-001115 ClG 21 55 20.0 -00 11 15           ~ 2 0
93 [DGK2015] SWCL J222432.9-021216 ClG 22 24 32.9 -02 12 16           ~ 2 0
94 SWXCS J222437-0222.5 ClG 22 24 37.77 -02 22 31.0           ~ 8 0
95 [DGK2015] SWCL J222439.0-021111 ClG 22 24 39.0 -02 11 11           ~ 2 0
96 SWXCS J222443-0220.5 ClG 22 24 43.89 -02 20 31.8           ~ 5 0
97 [DGK2015] SWCL J222506.2-020611 ClG 22 25 06.2 -02 06 11           ~ 2 0
98 GRB 061110A gB 22 25 09.800 -02 15 30.70 21.43         ~ 134 0
99 SWXCS J222516-0208.5 ClG 22 25 16.51 -02 08 27.6           ~ 5 0
100 SWXCS J222953+1943.9 ClG 22 29 53.54 +19 43 54.9           ~ 8 0
101 [DGK2015] SWCL J224206.9+233408 ClG 22 42 05.2 +23 34 13           ~ 5 0
102 [DGK2015] SWCL J231257.7+182543 ClG 23 12 57.7 +18 25 43           ~ 2 0
103 [DGK2015] SWCL J231733.7+322828 ClG 23 17 33.7 +32 28 28           ~ 2 0
104 [DGK2015] SWCL J232244.2+055601 ClG 23 22 44.2 +05 56 01           ~ 2 0
105 SWXCS J232248+0548.2 ClG 23 22 48.46 +05 48 09.5           ~ 8 0
106 [DGK2015] SWCL J232717.2+263108 ClG 23 27 17.9 +26 31 18           ~ 6 0
107 SWXCS J232726+2635.1 ClG 23 27 25.568 +26 35 03.61           ~ 3 0
108 [DGK2015] SWCL J233009.3+264459 ClG 23 30 09.3 +26 44 59           ~ 2 0

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