2009ApJ...694..992L

Query : 2009ApJ...694..992L

2009ApJ...694..992L - Astrophys. J., 694, 992-1009 (2009/April-1)

Spectral energy distribution of radio sources in nearby clusters of galaxies: implications for Sunyaev-Zel'Dovich effect surveys.

LIN Y.-T., PARTRIDGE B., POBER J.C., EL BOUCHEFRY K., BURKE S., KLEIN J.N., COISH J.W. and HUFFENBERGER K.M.

Abstract (from CDS):

To explore the high-frequency radio spectra of galaxies in clusters, we used NRAO's Very Large Array at four frequencies, 4.9-43 GHz, to observe 139 galaxies in low redshift (z < 0.25), X-ray detected, clusters. The clusters were selected from the survey conducted by Ledlow and Owen, who provided redshifts and 1.4 GHz flux densities for all the radio sources. We find that more than half of the observed sources have steep microwave spectra as generally expected (α < -0.5, in the convention S ∝ να). However, 60%-70% of the unresolved or barely resolved sources have flat or inverted spectra. Most of these show an upward turn in flux at ν>22 GHz, implying a higher flux than would be expected from an extrapolation of the lower-frequency flux measurements. Our results quantify the need for careful source subtraction in increasingly sensitive measurements of the Sunyaev-Zel'dovich effect in clusters of galaxies (as currently being conducted by, for instance, the Atacama Cosmology Telescope and South Pole Telescope groups).

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: clusters: general - galaxies: elliptical and lenticular, cD - radio continuum: galaxies

VizieR on-line data: <Available at CDS (J/ApJ/694/992): table3.dat>

Simbad objects: 142

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Number of rows : 142
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 PMN J0039-2220 BLL 00 39 08.2102455744 -22 20 01.478410368   16.29       ~ 63 1
2 MCG+03-02-021 rG 00 39 42.3936890328 +21 14 05.828281188   16       ~ 14 0
3 UGC 428 rG 00 40 28.2764694864 +29 33 21.486305592   16.0       ~ 31 0
4 4C 21.05 rG 00 41 41.4474244992 +21 24 10.109156832     16.5     ~ 31 1
5 FIRST J004148.2-091702 rG 00 41 48.2308999032 -09 17 03.269185620   17.02 16.09     ~ 42 0
6 LEDA 93226 GiC 00 41 50.1734020176 -09 25 47.379587232   16.26 15.57     ~ 57 1
7 MCG-02-02-086 rG 00 41 50.45002 -09 18 11.4633   14 13.52 12.94   ~ 154 1
8 3C 21 rG 00 46 29.3271965064 +20 28 04.765382328   14.73 16.5     ~ 54 2
9 2MASX J00483997+0125503 rG 00 48 39.9920987520 +01 25 49.911900528           ~ 12 0
10 NVSS J004943+242628 rG 00 49 41.8341890328 +24 26 42.031115700           ~ 11 1
11 LEDA 97361 rG 00 49 44.2932793296 +24 30 04.980431988           ~ 9 0
12 PMN J0053-2144 rG 00 53 25.46 -21 44 09.6           ~ 9 1
13 3C 28 rG 00 55 50.583 +26 24 36.68   18.63 19.57 16.26   ~ 213 1
14 IC 1602 rG 00 55 51.8906552688 -09 59 08.329887096   14   13.51   ~ 49 0
15 Z 384-32 rG 00 56 02.6897785104 -01 20 03.767007480   15.5817766 14.5116005     ~ 104 0
16 Z 384-38 rG 00 56 25.5953259432 -01 15 44.878056984   14.7145777 13.6895351     ~ 89 1
17 MCG-04-03-044 rG 01 02 41.43 -21 52 41.8   14.54 15.1 12.94   ~ 77 3
18 IC 1635 rG 01 11 03.5193188544 +17 39 07.364617524   17.2       ~ 25 0
19 Z 436-12 LIN 01 12 59.579 +15 29 28.71     15.7     ~ 91 1
20 2MASX J01222080+1935172 rG 01 22 20.8231247712 +19 35 16.919331000   16.14       ~ 10 0
21 IC 1695 rG 01 25 07.645 +08 41 57.68   14.87       ~ 68 1
22 NGC 545 BiC 01 25 59.12 -01 20 24.8   13.21 13.34     ~ 142 2
23 NGC 547 rG 01 26 00.6208982520 -01 20 42.432452268   13.16 13.34     ~ 363 4
24 IC 115 Sy1 01 26 54.4300162320 +19 12 52.190971380   15.2       ~ 76 1
25 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
26 2MASX J01415951+0740508 rG 01 41 59.4816226080 +07 40 50.375528832   16.26       ~ 10 0
27 MCG+01-05-022 rG 01 42 04.3224779952 +07 39 01.709868960   15.5       ~ 14 0
28 NGC 708 rG 01 52 46.482 +36 09 06.53 14.85 14.27 13.29 12.67 12.09 ~ 259 3
29 4C 31.06B rG 01 57 16.2726263928 +32 14 47.542188624           ~ 29 1
30 6dFGS gJ030652.7-120624 rG 03 06 52.68673 -12 06 23.4140   15.45   13.99   ~ 35 0
31 LEDA 95525 GiC 03 08 16.2685970976 -23 33 49.272769296   16.44       ~ 26 1
32 PKS 0431-134 rG 04 34 10.4303749800 -13 22 11.990119764   14 16.01 14.36   ~ 61 0
33 2MASX J04480299-2026384 rG 04 48 03.0229073760 -20 26 38.266830492   16.93   15.49   ~ 12 0
34 6dFGS gJ044810.5-202457 rG 04 48 10.4471348856 -20 24 57.104240652   16.99   15.38   ~ 18 0
35 2MASX J07212160+5548397 rG 07 21 21.6462402360 +55 48 39.894490260   14.97       ~ 25 0
36 [LO95] 0810+665 Rad 08 14 52.62 +66 26 50.6           ~ 4 0
37 [LO95] 0816+526 Rad 08 19 47.47 +52 32 27.4           ~ 4 0
38 ICRF J083915.8+285038 Sy2 08 39 15.82767313 +28 50 38.8026348   16.0 14.90     ~ 109 1
39 RX J0912.5+1555 BLL 09 12 30.6092069976 +15 55 28.012892088       17.4   ~ 47 1
40 FIRST J091235.1+155958 rG 09 12 35.1868857576 +16 00 00.710777232           ~ 16 1
41 [LO95] 1058+107 Rad 11 00 57.34 +10 30 20.0           ~ 4 0
42 NGC 3554 rG 11 10 47.8264466568 +28 39 36.890184240   15.3       ~ 46 0
43 MCG+07-23-030 rG 11 11 39.7456106592 +40 50 24.196230420   17 15.0     ~ 51 1
44 FIRST J111140.4+404707 rG 11 11 40.4827348296 +40 47 06.933126264           ~ 21 0
45 [LO95] 1108+410B Rad 11 11 43.61 +40 49 16.2           ~ 4 0
46 2MASX J11162847+2917096 LIN 11 16 28.4680380408 +29 17 09.479969736     15.18     ~ 33 0
47 Z 156-46 rG 11 16 34.6160545656 +29 15 17.112000564   15.02 14.90     ~ 133 1
48 MCG+09-19-110 rG 11 32 23.1982889568 +55 58 02.686512072   17.7       ~ 36 2
49 NVSS J113302+143224 rG 11 33 01.4457053568 +14 32 04.087944096           ~ 17 1
50 4C -03.43 rG 11 33 05.1119564064 -04 00 47.667566484   14.67       ~ 58 1
51 IC 708 Sy2 11 33 59.2259098704 +49 03 43.440038784   14.2       ~ 153 1
52 IC 711 LIN 11 34 46.5591867192 +48 57 22.009458600   15.2       ~ 88 1
53 IC 712 rG 11 34 49.2945748128 +49 04 39.576182052   14.8       ~ 92 1
54 4C 46.23 QSO 11 43 39.600 +46 21 20.44   14.9       ~ 64 0
55 [LO95] 1141+676 Rad 11 44 36.37 +67 24 20.9           ~ 4 0
56 NGC 3862 Sy2 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 646 1
57 NVSS J115558+732457 rG 11 55 59.894 +73 24 56.37           ~ 13 1
58 4C 26.35 LIN 11 58 20.138 +26 21 12.08     18.5     ~ 61 2
59 [OWB92] ACO 1446-A rG 12 02 04.45 +58 02 08.1           ~ 12 0
60 LEDA 97403 rG 12 03 36.6 +27 56 51   17.87       ~ 9 0
61 PKS 1201+027 rG 12 04 06.3897473208 +02 24 41.498150616     16.9     ~ 32 1
62 [LO95] 1207+722 Rad 12 10 19.26 +71 59 58.5           ~ 5 0
63 2MASX J12232904+6114535 rG 12 23 29.0816210208 +61 14 53.552861556           ~ 16 0
64 NVSS J122718+085034 rG 12 27 18.3198834312 +08 50 36.771658080   17.39       ~ 22 0
65 [LO95] 1225+636 Rad 12 27 51.36 +63 23 02.7           ~ 5 0
66 [LO95] 1231+674 Rad 12 33 15.33 +67 07 45.1           ~ 7 0
67 6C 123204+412614 Sy2 12 34 30.2465513112 +41 09 34.756515108   19.83 18.88     ~ 38 1
68 IC 3557 rG 12 36 08.1408951528 +16 38 29.061362148           ~ 33 1
69 4C 16.33 rG 12 36 27.5491004952 +16 32 19.339528920     17.3     ~ 60 1
70 4C 18.35 BiC 12 41 00.3292643928 +18 33 14.010734916   16.15 15.5     ~ 33 1
71 [LO95] 1243+699 Rad 12 45 53.87 +69 39 27.7           ~ 4 0
72 NVSS J125921+275438 rG 12 59 21.6 +27 54 43           ~ 8 1
73 NGC 4874 LIN 12 59 35.7093764280 +27 57 33.293892204 13.01 13.7 12.71 12.27 11.386 ~ 814 3
74 NVSS J130240+672841 rG 13 02 40.3358223192 +67 28 40.777763772           ~ 23 1
75 IC 4130 LIN 13 03 46.5967721784 +19 16 17.468252544   15.42 14.30     ~ 52 2
76 [LO95] 1320+584 Rad 13 22 54.53 +58 10 02.7           ~ 5 0
77 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
78 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
79 MCG+05-32-063 rG 13 41 49.131 +26 22 24.54   15.3       ~ 45 1
80 Z 161-121 rG 13 41 50.4521371440 +26 22 12.897805224   15.3 15.3     ~ 63 3
81 Z 162-10 LIN 13 48 52.4892734448 +26 35 34.353002688   14.0       ~ 241 2
82 [LO95] 1346+268B Rad 13 48 59.02 +26 33 36.6           ~ 5 0
83 NGC 5535 rG 14 17 31.2712272648 +08 12 30.254198508           ~ 40 2
84 NVSS J142042+250845 rG 14 20 41.9541948912 +25 08 44.159109900           ~ 21 1
85 [LO95] 1424+169 Rad 14 26 33.49 +16 45 13.2           ~ 4 0
86 [LO95] 1424+167 Rad 14 27 17.25 +16 33 16.6           ~ 4 0
87 NVSS J143527+550756 rG 14 35 28.4564383344 +55 07 51.969718632   18.7       ~ 35 1
88 2MASX J14371499+2445318 rG 14 37 15.0041440968 +24 45 32.250697236   17.19       ~ 23 0
89 NVSS J143716+245205 rG 14 37 16.8226002768 +24 52 09.285378276   16.64       ~ 22 1
90 PKS 1435+038 rG 14 38 21.8715090192 +03 40 13.344492936           ~ 49 1
91 ACO 1958 ClG 14 43 13 +30 58.3           ~ 53 0
92 NGC 5778 rG 14 54 31.4984540808 +18 38 32.499862620   15.6       ~ 68 3
93 IC 1101 rG 15 10 56.100 +05 44 41.19   15.10       ~ 165 2
94 NVSS J151109+180153 rG 15 11 08.7836931048 +18 01 53.270126436   15.93       ~ 24 1
95 Z 49-29 rG 15 11 26.51130 +06 20 56.6797   15.5       ~ 43 2
96 LEDA 84492 rG 15 12 34.3310191152 +07 25 53.559441300   15       ~ 36 0
97 Z 49-90 Sy2 15 16 44.4893939136 +07 01 17.825410740   15.19 14.17     ~ 463 4
98 Z 77-97 rG 15 23 05.2995518184 +08 36 33.193663020   14.71       ~ 72 2
99 NVSS J152744+285506 rG 15 27 44.4099822504 +28 55 06.607834248           ~ 77 1
100 NVSS J153244+280346 rG 15 32 44.7449724840 +28 03 47.314020312   17.68       ~ 32 1
101 NVSS J153315+310751 rG 15 33 15.2901908328 +31 07 51.119777280   16.79       ~ 18 1
102 LEDA 97431 rG 15 57 42.3925103064 +35 30 29.844096624   18.2       ~ 18 0
103 NVSS J155813+271622 rG 15 58 14.3093579688 +27 16 19.571108448   17.96       ~ 27 1
104 Z 108-73 rG 16 02 17.0257413888 +15 58 28.670337876   14.9       ~ 95 0
105 NGC 6047 rG 16 05 08.9880545352 +17 43 47.574625512   15.4       ~ 118 1
106 MCG+03-41-095 rG 16 05 29.1816860880 +16 26 09.094945344   15.4       ~ 45 0
107 NGC 6086 LIN 16 12 35.5357829352 +29 29 05.246712168   14.8       ~ 202 1
108 NGC 6166 Sy2 16 28 38.24470063 +39 33 04.2335319   12.78 11.78     ~ 793 2
109 NVSS J164021+464247 rG 16 40 22.0239801888 +46 42 46.015604604   19.8       ~ 17 1
110 4C 32.52A rG 16 59 00.9991142520 +32 29 39.282767376   16.55       ~ 51 1
111 FIRST J165908.4+323002 rG 16 59 08.4433194336 +32 30 01.556403840   15.45       ~ 13 0
112 LEDA 84809 GiC 17 00 52.2251220528 +78 41 21.123626136   16.78       ~ 24 0
113 LEDA 59495 rG 17 03 02.7991076016 +78 35 55.241646576           ~ 35 0
114 LEDA 59513 rG 17 03 29.3857127040 +78 37 54.951103560   17.02       ~ 29 0
115 LEDA 59520 rG 17 03 30.0542270136 +78 39 54.244656504   17.57       ~ 36 0
116 4C 34.45 BiC 17 09 38.3434265904 +34 25 52.695540912   15.3       ~ 60 0
117 LEDA 97434 GiC 17 09 59.1807669432 +34 30 46.279405044   16.56       ~ 14 1
118 4CT 39.49.1 rG 17 10 56.3082082344 +39 41 31.198944732           ~ 26 0
119 2MASXI J1712231+640156 rG 17 12 19.7 +64 01 25   17.6       ~ 18 0
120 2MASX J17130384+6407014 rG 17 13 03.7806794784 +64 07 01.673867568           ~ 32 0
121 7C 1713+6407b LIN 17 13 29.113 +64 02 48.73           ~ 45 2
122 4C 68.21 rG 18 19 42.2296559376 +68 56 50.813762280     13.21     ~ 25 1
123 [LO95] 1826+747 Rad 18 24 54.24 +74 43 57.8           ~ 6 0
124 TXS 1849+702 rG 18 49 17.9 +70 21 11           ~ 6 0
125 NVSS J185352+800250 rG 18 53 52.077 +80 02 50.46           ~ 8 0
126 2MASX J21265722-1212492 rG 21 26 57.2288267112 -12 12 49.415424156           ~ 10 0
127 LEDA 97442 rG 21 45 15.5042143464 -19 59 41.184459492   16.28       ~ 24 0
128 6dFGS gJ215159.8-153819 rG 21 51 59.8007386128 -15 38 18.450214908   16.23   14.80   ~ 13 0
129 NVSS J215702-075032 rG 21 57 01.71856 -07 50 22.5450   15.64   14.33   ~ 44 1
130 NVSS J215734-074745 rG 21 57 33.4754548104 -07 47 39.179136372   16.07   14.80   ~ 31 1
131 NVSS J223128-082907 rG 22 31 28.799 -08 29 05.88   16.31   14.96   ~ 19 0
132 PKS J2231-0824 rG 22 31 43.1912037984 -08 24 31.870802808   15.59 15.5 14.22   ~ 45 2
133 MCG+02-58-021 rG 22 50 19.727 +10 54 12.57   16       ~ 30 1
134 LEDA 71322 GiC 23 23 54.4389336936 +16 40 50.515520088   15.99       ~ 28 1
135 NVSS J232432+143825 rG 23 24 32.0965241760 +14 38 21.961599324   15.0 13.5     ~ 45 1
136 MCG+02-59-037 rG 23 24 37.2361368576 +14 38 32.828693352           ~ 33 0
137 LEDA 71390 Sy1 23 25 19.72968960 -12 07 27.0814800   15.45 15.46     ~ 185 2
138 4C 27.53A rG 23 35 01.4782510920 +27 22 20.679250476   15.28       ~ 50 1
139 IC 5338 rG 23 36 30.6135053136 +21 08 50.535313476   15.5       ~ 92 2
140 NGC 7720 Sy1 23 38 29.38324020 +27 01 53.2580084   13.9 13.3     ~ 565 4
141 MCG+01-60-039 rG 23 50 50.5592379024 +06 08 58.563049920   15       ~ 36 1
142 [LO95] 2352+261 Rad 23 55 24.69 +26 24 14.4           ~ 4 0

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