2002AJ....123.2402F

Query : 2002AJ....123.2402F

2002AJ....123.2402F - Astron. J., 123, 2402-2416 (2002/May-0)

The microjansky sky at 8.4 GHz.

FOMALONT E.B., KELLERMANN K.I., PARTRIDGE R.B., WINDHORST R.A. and RICHARDS E.A.

Abstract (from CDS):

We present the results from two deep radio integrations at 8.4 GHz using the Very Large Array. One of the fields, at 13h, +43° (SA 13 field), has an rms noise level of 1.49 µJy and is the deepest radio image yet made. Thirty-four sources in a complete sample were detected above 7.5 µJy, and 25 are optically identified to a limit of I=25.8, using our deep Hubble Space Telescope and ground-based images. The radio sources are usually located within 0".5 (typically 5 kpc) of a galaxy nucleus and generally have a diameter less than 2".5. We have also analyzed a complete flux density-limited sample at 8.4 GHz of 89 sources from five deep radio surveys, including the Hubble deep and flanking fields, as well as the two new fields. Half of all the optical counterparts are with galaxies brighter than I=23 mag, but 20% are fainter than I=25.5 mag. There may be a small tendency for the microjansky radio sources to prefer multigalaxy systems. The distribution of the radio spectral index between 1.4 and 8.4 GHz peaks at α~-0.75 (S~ν+α), with a median value of -0.6. The average spectral index becomes steeper (lower values) for sources below 35 µJy and for sources identified with optical counterparts fainter than I=25.5 mag. This correlation suggests that there is an increasing contribution from starburst galaxies compared to AGNs at lower radio flux densities and fainter optical counterparts. The differential radio count between 7.5 and 1000 µJy has a slope of -2.11±0.13 and a surface density of 0.64 sources (arcmin)–2, with a flux density greater than 7.5 µJy.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: Starburst - Radio Continuum

VizieR on-line data: <Available at CDS (J/AJ/123/2402): table1.dat table2.dat table4.dat>

Nomenclature: Table 1: [FKP2002] SA 13 NN (Nos 1-42) = [FKP2002] JHHMMSS+DDMMSS N=42, [FKP2002] SA 13 a (Nos a-h) = [FKP2002] JHHMMSS+DDMMSS N=8. Table 2: [FKP2002] Hercules NN (Nos 1-10) = [FKP2002] JHHMMSS+DDMMSS N=10. Table 4: [FKP2002] mJy BHHMMSS+DDMMSS N=6+14, [FKP2002] mJy JHHMMSS+DDMMSS N=29+34+6.

Errata: erratum vol. 125, p. 2751 (2003)

CDS comments: Calibrator J1658+4749 is a misprint for QSO J1658+4737?

Simbad objects: 115

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Number of rows : 115
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 17V 7 Rad 03 15 17.66 +80 21 19.9           ~ 2 0
2 17V 14 Rad 03 16 18.57 +80 25 17.7           ~ 2 0
3 17V 16 Rad 03 16 26.30 +80 21 03.2           ~ 2 0
4 17V 20 Rad 03 16 50.10 +80 23 06.0           ~ 2 0
5 17V 25 Rad 03 17 29.71 +80 19 28.5           ~ 2 0
6 17V 28 Rad 03 18 27.27 +80 20 44.4           ~ 2 0
7 16V 8 rG 08 44 43.94 +44 33 59.6   24.45       ~ 3 0
8 16V 9 Rad 08 44 45.10 +44 32 24.4           ~ 2 0
9 [VV2006] J084450.6+443555 QSO 08 44 50.559 +44 35 53.94   22.54       ~ 6 0
10 US 1579 QSO 08 44 56.7929923008 +44 34 50.541943728   19.24 19.05     ~ 33 0
11 16V 21 rG 08 44 57.87 +44 33 14.1   22.59       ~ 4 0
12 16V 22 rG 08 44 59.08 +44 33 47.7   23.18       ~ 4 0
13 16V 24 rG 08 44 59.98 +44 33 48.2   23.72       ~ 3 0
14 16V 25 rG 08 45 05.52 +44 34 14.0   24.91       ~ 4 0
15 16V 26 rG 08 45 05.61 +44 33 57.0   24.91       ~ 4 0
16 MCG+08-16-027 AGN 08 45 06.0239400168 +44 36 23.806847088   16       ~ 19 0
17 MCG+08-16-026 LIN 08 45 06.1458985440 +44 35 19.367573820   16       ~ 15 0
18 16V 31 rG 08 45 08.34 +44 34 38.8   22.86       ~ 6 0
19 16V 34 rG 08 45 14.51 +44 34 49.9   21.28       ~ 4 0
20 16V 36 rG 08 45 19.32 +44 35 44.6   20.71       ~ 5 0
21 SA 13- reg 10 48 +11.5           ~ 13 0
22 [FKP2002] mJy J123632+621105 Rad 12 36 32 +62 11.1           ~ 2 0
23 CXOHDFN J123632.4+621104 rG 12 36 32.51 +62 11 05.4 25.81 23.0827 22.447 19.67 19.9076 ~ 26 0
24 SDSS J123634.47+621213.2 EmG 12 36 34.474 +62 12 13.24 24.03 21.4534 21.551 18.84 19.1534 ~ 64 0
25 NAME SMM J123635+621239 rG 12 36 34.528 +62 12 41.39 25.26 23.8632 24.53 23.18 22.7131 ~ 126 0
26 [FKP2002] mJy J123637+621135 Rad 12 36 37 +62 11.6           ~ 2 0
27 [BCR2000] 28 rG 12 36 40.73 +62 10 11.0     26.4     ~ 11 0
28 [FKP2002] mJy J123641+621142 Rad 12 36 42 +62 11.7           ~ 2 0
29 COLDz -cont-GN-10 rG 12 36 42.093 +62 13 31.29 26.61 27.03 26.43 25.8 25.7254 ~ 75 0
30 ACS-GC 50012485 Sy2 12 36 42.192 +62 15 45.75 24.57 23.7774 24.15 21.61 21.3766 ~ 61 0
31 [FKP2002] mJy J123644+621249 Rad 12 36 44 +62 12.8           ~ 2 0
32 NAME SMM J123646+621451 rG 12 36 44.03 +62 14 50.6 25.38 25.3082 25.48 24.25 24.2135 ~ 62 0
33 COLDz -cont-GN-8 rG 12 36 44.390 +62 11 33.05 26.48 25.0440 24.15 21.96 21.5999 ~ 93 0
34 SDSS J123646.31+621404.6 Sy1 12 36 46.332 +62 14 05.01 24.58 23.8730 23.174 21.69 21.5709 ~ 114 0
35 CXOHDFN J123646.7+621445 rG 12 36 46.81 +62 14 45.5 25.4 25.5 25.4 25.1 23.22 ~ 17 0
36 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1967 1
37 NAME SMM J123650+621316 EmG 12 36 49.74 +62 13 13.0 25.47 23.7701 23.48 21.46 21.6273 ~ 89 1
38 CXOHDFN J123651.1+621031 AGN 12 36 51.13 +62 10 30.8 24.61 22.7105 22.346 20.23 20.3643 ~ 63 0
39 CXOHDFN J123651.8+621221 AGN 12 36 51.7445 +62 12 21.438     27.6   25.80 ~ 84 0
40 COLDz -cont-GN-5 rG 12 36 52.888 +62 14 43.97 24.30 21.9002 20.016 18.93 19.1887 ~ 62 0
41 COLDz -cont-GN-4 EmG 12 36 53.38 +62 11 39.6 24.11 23.4368 23.69 22.93 22.6310 ~ 66 0
42 [FKP2002] mJy J123655+621311 Rad 12 36 55 +62 13.2           ~ 2 0
43 [FKP2002] mJy J123657+621455 Rad 12 36 58 +62 14.9           ~ 2 0
44 NAME SMM J123700+620912 rG 12 37 00.23 +62 09 09.7     26.4   25.0 ~ 38 0
45 NAME SMM J123701+621148 rG 12 37 01.58 +62 11 46.4 28.69 25.8 25.7 25.30 25.30 ~ 55 1
46 [FKP2002] mJy J123707+611408 Rad 12 37 07 +61 14.1           ~ 1 0
47 CXOHDFN J123708.3+621055 rG 12 37 08.33 +62 10 56.0 23.16 21.6540 21.839 19.96 20.2695 ~ 52 0
48 [FKP2002] mJy J123708+621246 Rad 12 37 09 +62 12.8           ~ 2 0
49 NAME SMM J123711.32+621331.3 rG 12 37 11.35 +62 13 31.0 25.3 24.9032   23.8 24.7226 ~ 59 1
50 COLDz -cont-GN-1 rG 12 37 16.375 +62 15 12.32 23.47 19.6019 22.698 20.27 20.2888 ~ 49 0
51 [ABB2003] CDFN 403 rG 12 37 21.271 +62 11 29.91 24.8 24.3 24.3 23.8 25.0 ~ 31 0
52 NAME VLA J123725.7+621128 rG 12 37 25.7 +62 11 28   26.2680 26.40   23.6584 ~ 32 1
53 ICRF J124449.1+404806 Sy1 12 44 49.1889 +40 48 06.150   19.0 19.0     ~ 87 1
54 [FKP2002] SA 13 1 rG 13 11 57.499 +42 39 10.16           ~ 1 0
55 [FKP2002] SA 13 2 Rad 13 11 57.903 +42 36 30.15           ~ 1 0
56 [FKP2002] SA 13 3 rG 13 12 03.092 +42 40 30.68           ~ 1 0
57 [FKP2002] SA 13 4 AG? 13 12 03.4889 +42 33 31.264           ~ 2 0
58 [FKP2002] SA 13 5 Rad 13 12 05.596 +42 38 51.15           ~ 2 0
59 [FKP2002] SA 13 6 Rad 13 12 07.645 +42 39 45.87           ~ 1 0
60 [FKP2002] SA 13 7 rG 13 12 09.068 +42 42 17.49           ~ 1 0
61 [FKP2002] SA 13 8 rG 13 12 11.029 +42 40 53.66           ~ 1 0
62 [FKP2002] SA 13 9 rG 13 12 13.303 +42 35 55.76           ~ 1 0
63 [FKP2002] SA 13 10 rG 13 12 13.446 +42 41 29.44           ~ 1 0
64 [FKP2002] SA 13 a rG 13 12 13.521 +42 39 32.16           ~ 2 0
65 [FKP2002] SA 13 b rG 13 12 13.583 +42 38 26.68           ~ 1 0
66 [FKP2002] SA 13 11 Rad 13 12 13.858 +42 37 06.50           ~ 1 0
67 [FKP2002] SA 13 12 rG 13 12 14.518 +42 38 21.86   23.08       ~ 4 0
68 [FKP2002] SA 13 13 rG 13 12 14.666 +42 37 30.96   25.27       ~ 4 0
69 [FKP2002] SA 13 14 rG 13 12 15.130 +42 37 02.70   20.71       ~ 4 0
70 QSO B1310+4254A QSO 13 12 15.2351758152 +42 39 00.885750948   18.93 18.73   17.97 ~ 57 0
71 [FKP2002] SA 13 c rG 13 12 15.847 +42 39 13.22           ~ 1 0
72 [FKP2002] SA 13 16 rG 13 12 16.083 +42 39 21.47   25.09       ~ 5 0
73 [FKP2002] SA 13 d rG 13 12 16.521 +42 39 20.40           ~ 1 0
74 [FKP2002] SA 13 17 rG 13 12 17.181 +42 39 12.15   21.94       ~ 4 0
75 [FKP2002] mJy J131217+423930 rG 13 12 17.601 +42 39 30.49   25.58       ~ 4 0
76 [FKP2002] SA 13 19 rG 13 12 18.311 +42 39 07.79   25.88       ~ 3 0
77 [FKP2002] SA 13 20 rG 13 12 18.437 +42 38 43.92   23.20       ~ 4 0
78 [FKP2002] SA 13 e rG 13 12 19.092 +42 39 32.20           ~ 1 0
79 [FKP2002] SA 13 21 rG 13 12 19.838 +42 36 08.91           ~ 1 0
80 [FKP2002] SA 13 22 rG 13 12 19.932 +42 38 31.39   22.27       ~ 5 0
81 [FKP2002] SA 13 23 rG 13 12 20.016 +42 39 23.97           ~ 5 0
82 [FKP2002] SA 13 24 rG 13 12 20.185 +42 37 04.02   28.81       ~ 5 0
83 [FKP2002] SA 13 25 Rad 13 12 20.236 +42 40 29.67           ~ 2 0
84 [FKP2002] SA 13 26 Rad 13 12 20.871 +42 35 35.33           ~ 1 0
85 [FKP2002] SA 13 27 G 13 12 21.109 +42 39 23.49   19.69       ~ 7 0
86 [FKP2002] SA 13 28 G 13 12 21.397 +42 37 22.91   19.34       ~ 7 0
87 [FKP2002] SA 13 f rG 13 12 21.794 +42 38 36.96           ~ 1 0
88 [FKP2002] SA 13 29 rG 13 12 21.839 +42 38 27.55   21.80       ~ 4 0
89 QSO B1310+4254B QSO 13 12 22.3857337776 +42 38 13.961816916   21.19     19.85 ~ 28 0
90 [FKP2002] SA 13 31 rG 13 12 23.298 +42 39 08.35   21.82       ~ 4 0
91 [SWM97] J131223.8+423712 rG 13 12 23.693 +42 37 12.09   20.94       ~ 7 1
92 [FKP2002] SA 13 33 rG 13 12 23.999 +42 35 25.57           ~ 1 0
93 [FKP2002] SA 13 34 rG 13 12 24.133 +42 38 04.89   24.50       ~ 3 0
94 [FKP2002] SA 13 g rG 13 12 25.065 +42 37 42.33           ~ 5 0
95 [FKP2002] SA 13 35 Rad 13 12 25.201 +42 36 56.66           ~ 2 0
96 [FKP2002] SA 13 36 Rad 13 12 25.228 +42 41 03.44           ~ 1 0
97 [FKP2002] SA 13 h rG 13 12 25.549 +42 39 07.01           ~ 1 0
98 NAME SMM J131225.73+423941.4 rG 13 12 25.743 +42 39 41.58   23.83       ~ 11 0
99 [FKP2002] SA 13 38 rG 13 12 26.287 +42 42 27.43           ~ 1 0
100 [FKP2002] SA 13 39 rG 13 12 27.532 +42 38 00.23   21.43       ~ 4 0
101 [FKP2002] SA 13 40 rG 13 12 32.797 +42 40 38.42           ~ 2 0
102 [FKP2002] SA 13 41 rG 13 12 36.044 +42 40 27.66           ~ 1 0
103 [FKP2002] SA 13 42 rG 13 12 39.705 +42 39 11.32           ~ 1 0
104 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
105 6C 165641+474241 Bla 16 58 02.77959206 +47 37 49.2308569   17.93 17.70 17.02   ~ 123 1
106 [FKP2002] Hercules 1 Rad 17 13 49.077 +50 16 10.49           ~ 1 0
107 [FKP2002] Hercules 2 Rad 17 13 54.160 +50 15 47.70           ~ 1 0
108 [FKP2002] Hercules 3 Rad 17 14 07.032 +50 15 47.76           ~ 1 0
109 [VV2006] J171411.9+501601 QSO 17 14 11.951 +50 16 02.42   23.33 23.28 23.65   ~ 23 0
110 6C 171301+501842 Sy2 17 14 14.758 +50 15 30.46   24.05   22.64   ~ 110 1
111 [FKP2002] Hercules 6 Rad 17 14 15.219 +50 15 35.45           ~ 1 0
112 [CMR2006] J1714+5015 M49 rG 17 14 16.771 +50 18 17.10       17.18   ~ 2 0
113 [FKP2002] Hercules 8 Rad 17 14 24.613 +50 13 39.78           ~ 1 0
114 [FKP2002] Hercules 9 Rad 17 14 36.222 +50 13 29.56           ~ 1 0
115 [FKP2002] Hercules 10 Rad 17 14 42.629 +50 16 40.09           ~ 1 0

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