2009MNRAS.400..984D

Query : 2009MNRAS.400..984D

2009MNRAS.400..984D - Mon. Not. R. Astron. Soc., 400, 984-994 (2009/December-1)

Follow-up observations at 16 and 33GHz of extragalactic sources from WMAP 3-yr data: I - spectral properties.

DAVIES M.L., FRANZEN T.M.O., DAVIES R.D., DAVIS R.J., FEROZ F., GENOVA-SANTOS R., GRAINGE K.J.B., GREEN D.A., HOBSON M.P., HURLEY-WALKER N., LASENBY A.N., LOPEZ-CANIEGO M., OLAMAIE M., PADILLA-TORRES C.P., POOLEY G.G., REBOLO R., RODRIGUEZ-GONZALVEZ C., SAUNDERS R.D.E., SCAIFE A.M.M., SCOTT P.F., SHIMWELL T.W., TITTERINGTON D.J., WALDRAM E.M., WATSON R.A. and ZWART J.T.L.

Abstract (from CDS):

We present follow-up observations of 97 point sources from the Wilkinson Microwave Anisotropy Probe (WMAP) 3-yr data, contained within the New Extragalactic WMAP Point Source catalogue between -4° ≤ δ ≤ 60°; the sources form a flux-density-limited sample complete to 1.1Jy (~5σ) at 33GHz. Our observations were made at 16GHz using the Arcminute Microkelvin Imager and at 33GHz with the Very Small Array (VSA).

94 of the sources have reliable, simultaneous - typically a few minutes apart - observations with both telescopes. The spectra between 13.9 and 33.75GHz are very different from those of bright sources at low frequency: 44 per cent have rising spectra (α33.7513.9< 0.0), where S ∝ ν–α, and 93 per cent have spectra with α33.7513.9< 0.5; the median spectral index is 0.04.

For the brighter sources, the agreement between VSA and WMAP 33-GHz flux densities averaged over sources is very good. However, for the fainter sources, the VSA tends to measure lower values for the flux densities than WMAP. We suggest that the main cause of this effect is the Eddington bias arising from variability.


Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): galaxies: active - cosmic macrowave background - cosmology: observations - radio continuum: general

VizieR on-line data: <Available at CDS (J/MNRAS/400/984): table2.dat>

Nomenclature: Table 2: NEWPS5 JHHMM+DDMM N=97.

Simbad objects: 102

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Number of rows : 102
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 [VV2000] J002945.9+055440 Bla 00 29 45.89631836 +05 54 40.7120179   19.5 15.92 19.50   ~ 74 1
2 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
3 ICRF J010549.9+481903 Bz? 01 05 49.92815750 +48 19 03.1928710       23.99   ~ 43 1
4 4C 01.02 Bla 01 08 38.77110544 +01 35 00.3171844   18.54 18.39 19.05   ~ 589 1
5 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 494 2
6 6C 013354+473615 Bla 01 36 58.59480326 +47 51 29.1000720     19.50 19.25 15.21 ~ 537 1
7 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
8 GB6 J0152+2206 Rad 01 52 17.8 +22 06 58           ~ 8 0
9 4C 15.05 Bla 02 04 50.41389294 +15 14 11.0436097   21.9 21.00 21.00   ~ 426 1
10 7C 020209.69+315812.00 Bla 02 05 04.92536206 +32 12 30.0954703     17.40 17.40   ~ 246 1
11 GB6 J0221+3556 Rad 02 21 05.8 +35 56 13           ~ 8 0
12 GB6 J0223+4259 Rad 02 23 14.5 +42 59 19           ~ 11 0
13 4C 28.07 Bla 02 37 52.40567519 +28 48 08.9899986     19.30 16.99   ~ 654 1
14 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
15 4C 47.08 BLL 03 03 35.24221958 +47 16 16.2754726   17.54 16.95 16.2   ~ 292 1
16 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
17 6C 033321+320838 Bla 03 36 30.10760267 +32 18 29.3422162     17.50 16.6   ~ 688 1
18 QSO B0336-0156 Bla 03 39 30.93778633 -01 46 35.8041892   18.96 18.41 17.33   ~ 598 1
19 GB6 J0418+3801 Rad 04 18 22.10 +38 01 47.0           ~ 4 0
20 QSO B0420-0127 Bla 04 23 15.80072217 -01 20 33.0656073   17.50 17.00 16.28   ~ 1263 3
21 NVSS J042355+415003 BLL 04 23 56.00979158 +41 50 02.7129362   19   19.2   ~ 123 1
22 QSO B0422+004 BLL 04 24 46.8421990080 +00 36 06.329375028 16.15 15.94 16.98     ~ 378 1
23 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
24 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
25 QSO B0446+113 BLL 04 49 07.67110194 +11 21 28.5963618     20.00 18.58   ~ 305 1
26 4C -02.19 Bla 05 01 12.80988538 -01 59 14.2564557   19.1 18.06 19.04   ~ 624 1
27 6C 052927+482100 Bla 05 33 15.86579115 +48 22 52.8077787     19.90     ~ 150 1
28 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
29 7C 055201.39+394824.00 Bla 05 55 30.80561419 +39 48 49.1649683     18.30 17.5   ~ 527 2
30 GB6 J0646+4451 Rad 06 46 31.4 +44 51 22           ~ 12 0
31 6C 073002+502841 Bla 07 33 52.52058088 +50 22 09.0622668     19.30 18.37   ~ 129 1
32 GB6 J0738+1742 Rad 07 38 07.6 +17 42 26           ~ 10 0
33 QSO B0736+01 Bla 07 39 18.03389906 +01 37 04.6177501   16.90 16.47 16.19   ~ 738 1
34 QSO B0748+126 Bla 07 50 52.04573865 +12 31 04.8282079   17.67 17.28 17.16   ~ 363 1
35 QSO B0754+10 BLL 07 57 06.64295154 +09 56 34.8522544   15.43 15.00 15.99   ~ 461 1
36 QSO B0823+033 BLL 08 25 50.33835759 +03 09 24.5199749   17.81 17.23 16.91   ~ 352 1
37 7C 082754.29+242103.00 Bla 08 30 52.08619250 +24 10 59.8202919   17.62 17.26 16.30   ~ 563 1
38 3C 207.0 Bla 08 40 47.58842599 +13 12 23.5637506   18.58 18.15 17.622   ~ 455 1
39 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
40 4C 01.24B Bla 09 09 10.09159883 +01 21 35.6176206   17.63 17.29 17.04   ~ 454 2
41 6C 091740+445437 Bla 09 20 58.45848666 +44 41 53.9850947   18.40 18.16 16.55   ~ 407 1
42 4C 39.25 Bla 09 27 03.01394144 +39 02 20.8518067   17.17 17.00 16.486   ~ 1036 1
43 GB6 J0948+4039 Rad 09 48 55.2 +40 39 56           ~ 11 0
44 US 1139 Bla 09 58 19.67164698 +47 25 07.8424065   18.78 18.62 18.39   ~ 264 1
45 7C 1030+4131 Bla 10 33 03.70787172 +41 16 06.2329333   20.01 19.64 19.97   ~ 234 1
46 QSO B1036+054 Bla 10 38 46.77987408 +05 12 29.0867216   20.21 19.45 19.53   ~ 111 1
47 4C 06.41 BLL 10 41 17.16249940 +06 10 16.9237327   16.86 16.70 16.14   ~ 302 1
48 4C 01.28 BLL 10 58 29.60520810 +01 33 58.8237454   18.74 18.28 16.68   ~ 828 2
49 7C 112812.59+383153.00 Bla 11 30 53.28261620 +38 15 18.5469361   19.11 18.80 19.42   ~ 233 1
50 LB 2136 Bla 11 53 24.46663994 +49 31 08.8301372   17.94 17.66     ~ 529 1
51 Ton 599 Bla 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 989 1
52 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
53 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
54 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
55 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
56 GB6 J1331+3030 Rad 13 31 08.0 +30 30 35           ~ 12 0
57 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
58 PKS 1345+12 Sy2 13 47 33.36161873 +12 17 24.2398927   19.28 18.44 15.718   ~ 652 2
59 4C 19.44 Bla 13 57 04.4366598768 +19 19 07.371837768   16.33 16.03 15.3   ~ 472 2
60 GB6 J1419+3822 Rad 14 19 45.9 +38 22 01           ~ 12 0
61 GB6 J1504+1029 Rad 15 04 24.0 +10 29 43           ~ 10 0
62 Z 21-63 BLL 15 16 40.21905672 +00 15 01.9090936   17.28 16.64 10.53   ~ 217 1
63 QSO B1546+0246 Bla 15 49 29.43684740 +02 37 01.1632556   17.57 17.42 15.53   ~ 395 1
64 4C 05.64 Bla 15 50 35.26924234 +05 27 10.4483641   19.10 18.73 19.02   ~ 371 1
65 4C 10.45 Bla 16 08 46.20318700 +10 29 07.7757424   18.5 18.70 18.03   ~ 409 1
66 6C 161147+342017 Bla 16 13 41.06424322 +34 12 47.9088535   17.98 17.46 17.07   ~ 673 1
67 4C 38.41 Bla 16 35 15.49297809 +38 08 04.5005995   18.14 17.97 17.25   ~ 906 1
68 6C 163718+572618 Bla 16 38 13.45629995 +57 20 23.9789828     16.90 16.94   ~ 381 1
69 3C 345 Bla 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1808 3
70 MCG+01-43-006 SyG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 502 1
71 4C -00.67 Sy2 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 345 1
72 7C 172601.30+453309.00 BLL 17 27 27.65080202 +45 30 39.7312530   19.0 18.10 16.64   ~ 233 2
73 GB6 J1734+3857 Rad 17 34 20.5 +38 57 45           ~ 11 0
74 4C 51.37 Bla 17 40 36.97784792 +52 11 43.4073694   18.16 18.70 16.73   ~ 441 1
75 QSO B1741-038 Bla 17 43 58.85613537 -03 50 04.6167326     20.40 17.98   ~ 583 1
76 WMAP J1751+0937 QSO 17 51 41.0 +09 41 10           ~ 9 0
77 QSO J1753+2848 Bla 17 53 42.47364223 +28 48 04.9388788   19.6 19.60 20.28   ~ 118 1
78 7C 180003.10+440418.00 Bla 18 01 32.31481983 +44 04 21.9002442   16.8 17.90 15.29   ~ 228 1
79 4C 56.27 BLL 18 24 07.06837171 +56 51 01.4908155   18.9 19.30 16.48   ~ 510 1
80 2C 1569 Bla 18 29 31.7809732968 +48 44 46.160168892   17.05 16.81 16.860   ~ 713 1
81 QSO B1954+513 Bla 19 55 42.73825546 +51 31 48.5461173     18.5 17.34   ~ 247 1
82 NEWPS5 J1959+4034 Rad 19 59 21.8 +40 34 28           ~ 2 0
83 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
84 QSO J2123+0535 Bla 21 23 44.51739933 +05 35 22.0930238   18.3 20.40 19.86   ~ 320 1
85 4C -02.81 BLL 21 34 10.30958988 -01 53 17.2389056   18.6 19.00 18.87   ~ 431 1
86 QSO B2134+0028 Bla 21 36 38.58632232 +00 41 54.2128562   17.30 17.08 17.02   ~ 580 2
87 QSO B2136+1410 Bla 21 39 01.30926630 +14 23 35.9921774     18.90 18.22   ~ 264 1
88 QSO B2141+1730 Bla 21 43 35.54456275 +17 43 48.7875890   15.91 15.73 15.17   ~ 418 1
89 4C 06.69 Bla 21 48 05.45866779 +06 57 38.6041877   16.85 16.47 15.06   ~ 703 1
90 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
91 GB6 J2203+3145 Rad 22 03 15.8 +31 45 38           ~ 11 0
92 GB6 J2203+1725 Rad 22 03 26.7 +17 25 42           ~ 11 0
93 QSO B2209+236 Bla 22 12 05.96631459 +23 55 40.5438259   19 20.66 19.69   ~ 257 1
94 4C -03.79 Bla 22 18 52.03772044 -03 35 36.8795441   16.93 16.38 16.15   ~ 353 1
95 QSO J2225+2118 Bla 22 25 38.0470440264 +21 18 06.414418332     18.19 17.65   ~ 180 1
96 4C 11.69 Bla 22 32 36.40890093 +11 43 50.9040592   17.75 17.33     ~ 1205 2
97 GB6 J2236+2828 Rad 22 36 20.8 +28 28 56           ~ 10 0
98 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2
99 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1
100 QSO B2325+093 Bla 23 27 33.58055652 +09 40 09.4627185   18.5 19.5 18.26   ~ 211 1
101 QSO B2332-017 Bla 23 35 20.41204300 -01 31 09.5917037   18.4 18.78 18.35   ~ 116 1
102 6C 235150+453621 Bla 23 54 21.68022501 +45 53 04.2365520   20.6 20.60 19.1   ~ 252 1

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