2003MNRAS.341.1066T

Query : 2003MNRAS.341.1066T

2003MNRAS.341.1066T - Mon. Not. R. Astron. Soc., 341, 1066-1075 (2003/June-1)

First results from the Very Small Array - II. Observations of the cosmic microwave background.

TAYLOR A.C., CARREIRA P., CLEARY K., DAVIES R.D., DAVIS R.J., DICKINSON C., GRAINGE K., GUTIERREZ C.M., HOBSON M.P., JONES M.E., KNEISSL R., LASENBY A., LEAHY J.P., MAISINGER K., POOLEY G.G., REBOLO R., RUBINO-MARTIN J.A., RUSHOLME B., SAUNDERS R.D.E., SAVAGE R., SCOTT P.F., SLOSAR A., SOSA MOLINA P.J., TITTERINGTON D., WALDRAM E., WATSON R.A. and WILKINSON A.

Abstract (from CDS):

We have observed the cosmic microwave background (CMB) temperature fluctuations in eight fields covering three separated areas of sky with the Very Small Array at 34 GHz. A total area of 101 square degrees has been imaged, with sensitivity on angular scales of {formmu0} (equivalent to angular multipoles ℓ=150-900). We describe the field selection and observing strategy for these observations. In the full-resolution images (with synthesized beam of FWHM ≃17 arcmin) the thermal noise is typically 45 µK and the CMB signal typically 55 µK. The noise levels in each field agree well with the expected thermal noise level of the telescope, and there is no evidence of any residual systematic features. The same CMB features are detected in separate, overlapping observations. Discrete radio sources have been detected using a separate 15-GHz survey and their effects removed using pointed follow-up observations at 34 GHz. We estimate that the residual confusion noise arising from unsubtracted radio sources is less than 14 mJy.beam–1 (15 µK in the full-resolution images), which added in quadrature to the thermal noise increases the noise level by 6 per cent. We estimate that the rms contribution to the images from diffuse Galactic emission is less than 6 µK. We also present images that are convolved to maximize the signal-to-noise ratio of the CMB features and are co-added in overlapping areas, in which the signal-to-noise ratio of some individual CMB features exceeds 8.

Abstract Copyright: 2003 RAS

Journal keyword(s): cosmic microwave background - cosmology: observations

VizieR on-line data: <Available at CDS (J/MNRAS/341/1066): table1.dat table3.dat>

Nomenclature: Table 3: [TCC2003b] JHHMMSS.s+DDMMSS N=64.

Simbad objects: 67

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Number of rows : 67
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 [TCC2003b] J000035.1+291429 Rad 00 00 35.1 +29 14 29           ~ 1 0
2 [TCC2003b] J000055.9+251624 Rad 00 00 55.9 +25 16 24           ~ 1 0
3 [TCC2003b] J000121.5+252651 Rad 00 01 21.5 +25 26 51           ~ 1 0
4 [TCC2003b] J000316.3+245942 Rad 00 03 16.3 +24 59 42           ~ 1 0
5 [TCC2003b] J000434.5+294618 Rad 00 04 34.5 +29 46 18           ~ 1 0
6 ICRF J000648.7+242236 Bla 00 06 48.78940501 +24 22 36.3922391   18.4   18.80   ~ 37 1
7 9C J0010+2854 QSO 00 10 27.7856311728 +28 54 58.741750944       19.56   ~ 14 1
8 [TCC2003b] J001238.1+270240 Rad 00 12 38.1 +27 02 40           ~ 1 0
9 NVSS J001247+335338 Bla 00 12 47.38217291 +33 53 38.4715185       20.15   ~ 42 1
10 [TCC2003b] J001344.0+344142 Rad 00 13 44.0 +34 41 42           ~ 1 0
11 3C 6 Rad 00 15 06.14742346 +32 16 13.3093056   18.0 16.8 15.61   ~ 33 1
12 [TCC2003b] J001537.9+333241 Rad 00 15 37.9 +33 32 41           ~ 1 0
13 [TCC2003b] J001603.6+244018 Rad 00 16 03.6 +24 40 18           ~ 1 0
14 [TCC2003b] J001812.4+292125 rG 00 18 12.4237207904 +29 21 24.201387901           ~ 3 0
15 NGC 76 rG 00 19 37.79034361 +29 56 01.9220259   14.0   7.25   ~ 53 1
16 4C 25.01 Bla 00 19 39.7806511920 +26 02 52.277853012     15.4 15.04   ~ 110 1
17 NVSS J001952+264732 rG 00 19 52.5315656728 +26 47 31.967192477       19.27   ~ 5 1
18 NVSS J002323+253918 Rad 00 23 23.0104 +25 39 17.954       19.00   ~ 7 1
19 NVSS J002339+292827 rG 00 23 39.63945600 +29 28 27.9414120           ~ 6 1
20 9C J0024+2911 QSO 00 24 34.417 +29 11 26.64       17.44   ~ 10 0
21 [TCC2003b] J002817.0+291429 Rad 00 28 17.0 +29 14 29           ~ 1 0
22 9C J0034+2754 QSO 00 34 43.4862800448 +27 54 25.717898772   18.0   17.87   ~ 40 1
23 [TCC2003b] J003659.7+295859 Rad 00 36 59.7 +29 58 59           ~ 1 0
24 [TCC2003b] J004115.9+321108 Rad 00 41 15.9 +32 11 08           ~ 1 0
25 7C 092048.9+312056 QSO 09 23 47.9514 +31 07 54.170   18.70 18.51 17.90   ~ 61 1
26 7C 092054.7+282821 Bla 09 23 51.52339821 +28 15 25.0219334   19.70 19.48 19.00   ~ 112 1
27 6C 092242+314056 BLL 09 25 43.65026836 +31 27 10.8028961   19.14 18.72 18.10   ~ 44 1
28 7C 0924+3047 QSO 09 27 39.8045805816 +30 34 16.760015004   19.2 19.00 19.55   ~ 27 1
29 9C J0931+2750 QSO 09 31 51.7825 +27 50 50.608       20.10   ~ 24 1
30 [TCC2003b] J093255.0+333929 Rad 09 32 55.0 +33 39 29           ~ 1 0
31 NVSS J093706+320654 Rad 09 37 06.3813313704 +32 06 55.570262256       19.50   ~ 6 1
32 9C J0939+2908 QSO 09 39 01.6191 +29 08 28.337       20.50   ~ 13 1
33 9C J0941+2728 BLL 09 41 48.1135 +27 28 38.818   19.73 19.36 18.10   ~ 94 1
34 9C J0941+2722 Bla 09 41 52.4209964928 +27 22 17.880141396       19.3   ~ 10 1
35 9C J0942+3344 QSO 09 42 36.0825 +33 44 36.146           ~ 8 1
36 4C 28.24 rG 09 52 06.09333 +28 28 32.1785       19.62   ~ 21 1
37 [TCC2003b] J095327.9+322552 Rad 09 53 27.9 +32 25 52           ~ 1 0
38 9C J0954+2639 Bz? 09 54 39.79652916 +26 39 24.5433239       22.54   ~ 26 1
39 Ton 1125 QSO 09 55 37.9390883544 +33 35 03.940465164     17 16.72   ~ 67 1
40 Ton 469 Bla 09 58 20.9496221568 +32 24 02.208417372   15.88 15.78 15.51   ~ 442 1
41 7C 0956+3002 QSO 09 58 58.9479353976 +29 48 04.182666120   19.26 19.04 19.47   ~ 33 1
42 [TCC2003b] J100007.5+275245 Rad 10 00 07.5 +27 52 45           ~ 1 0
43 9C J1001+2911 BLL 10 01 10.2057148656 +29 11 37.537140264   19.00 18.34 16.39   ~ 123 1
44 [TCC2003b] J100146.2+284655 Rad 10 01 46.2 +28 46 55           ~ 1 0
45 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
46 6C 150504+425103 Bla 15 06 53.04184890 +42 39 23.0354724   20.78 20.28 19.30   ~ 55 1
47 [TCC2003b] J151142.6+443044 Rad 15 11 42.6 +44 30 44           ~ 1 0
48 9C J1516+4349 BLL 15 16 31.3718543256 +43 49 49.613069136       18.50   ~ 10 1
49 NVSS J151756+393641 Rad 15 17 56.873 +39 36 41.79       19.90   ~ 5 0
50 NVSS J151926+425407 rG 15 19 26.90957 +42 54 08.2325       21.50   ~ 5 1
51 [TCC2003b] J152039.6+421112 Rad 15 20 39.6 +42 11 12           ~ 1 0
52 9C J1521+4336 Bla 15 21 49.61387806 +43 36 39.2681695   19.30 18.95 18.09   ~ 129 1
53 NVSS J152645+420144 Rad 15 26 45.48 +42 01 44.1       19.10   ~ 8 0
54 6C 153425+384300 QSO 15 36 13.8477 +38 33 28.603           ~ 22 1
55 [TCC2003b] J153623.1+384552 Rad 15 36 23.1 +38 45 52           ~ 1 0
56 9C J1538+4225 BLL 15 38 55.7965 +42 25 27.045       20.10   ~ 6 1
57 [TCC2003b] J153942.4+433741 Rad 15 39 42.4 +43 37 41           ~ 1 0
58 [TCC2003b] J154258.9+454559 Rad 15 42 58.9 +45 45 59           ~ 1 0
59 7C 154336.10+480114.00 QSO 15 45 08.52983300 +47 51 54.6642312   22.50 21.76 20.80   ~ 51 1
60 9C J1545+4130 QSO 15 45 21.4883125272 +41 30 25.205470236       20.00   ~ 16 1
61 [TCC2003b] J154758.9+420852 Rad 15 47 58.9 +42 08 52           ~ 1 0
62 [TCC2003b] J155636.1+425707 Rad 15 56 36.1 +42 57 07           ~ 1 0
63 4C 45.30 BLL 15 57 18.99964975 +45 22 21.5373729   21.67 20.93 18.80   ~ 44 1
64 5C 13.225 Bla 16 08 22.15769356 +40 12 17.8335172   21.16 20.80 19.1   ~ 54 1
65 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
66 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1
67 [TCC2003b] J235544.0+301242 Rad 23 55 44.0 +30 12 42           ~ 1 0

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