2008ApJ...681..747C


Query : 2008ApJ...681..747C

2008ApJ...681..747C - Astrophys. J., 681, 747-755 (2008/July-2)

Extragalactic point-source search in WMAP 61 and 94 GHz data.

CHEN X. and WRIGHT E.L.

Abstract (from CDS):

We report the results of an extragalactic point-source search using the 61 and 94 GHz (V- and W-band) temperature maps from the Wilkinson Microwave Anisotropy Probe (WMAP). Applying a method that cancels the ``noise'' due to the CMB anisotropy signal, we find in the b>10° region 31 sources in the first-year maps and 64 sources in the three-year co-added maps at a 5 σ level. The 1 σ position uncertainties are 1.6' and 1.4', respectively. The increased detections and improved positional accuracy are expected from the higher signal-to-noise ratio of the WMAP three-year data. All sources detected in the first-year maps are repeatedly detected in the three-year maps, which is a strong indication of the consistency of this method. Of all the sources, 97% are identified with either the WMAP three-year source catalog or plausible extrapolations of lower frequency data, which indicates that our method is also reliable. The two unidentified sources have been recently confirmed to be false detections, using the WMAP five-year data. We derive the source count distribution at the WMAP V band by combining our verified detections with sources from the WMAP three-year catalog. If we assume that the effect of source clustering is negligible, the contribution to the power spectrum from faint sources below 0.75 Jy is estimated to be 2.4±0.8x10–3 µK2 sr for the V band, which implies a source correction amplitude of A=0.012±0.004 µK2 sr.

Abstract Copyright:

Journal keyword(s): Cosmology: Cosmic Microwave Background - Cosmology: Observations - Methods: Data Analysis

VizieR on-line data: <Available at CDS (J/ApJ/681/747): table1.dat>

Nomenclature: Table 1: [CW2008] JHHMMSS+DDMMSS N=64.

Simbad objects: 66

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Number of rows : 66
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 QSO B0003-066 BLL 00 06 13.89288482 -06 23 35.3353584   19.1   17.14   ~ 304 1
2 4C 01.02 Bla 01 08 38.77110544 +01 35 00.3171844   18.54 18.39 19.05   ~ 506 1
3 QSO B0133+476 Bla 01 36 58.59480326 +47 51 29.1000720     18.0 19.25 15.21 ~ 473 1
4 QSO B0208-512 BLL 02 10 46.2004407600 -51 01 01.893013392   17.10 16.93 14.82   ~ 417 1
5 4C 28.07 QSO 02 37 52.40567519 +28 48 08.9899986     18.5 16.99   ~ 565 1
6 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 3837 3
7 PMN J0321-3711 Rad 03 21 23.30 -37 11 34.0           ~ 4 0
8 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1317 1
9 NGC 1499 HII 04 03 18 +36 25.3           ~ 166 0
10 QSO J0403-3605 QSO 04 03 53.74990003 -36 05 01.9131880   17.04 17.17 16.67   ~ 259 1
11 QSO B0420-0127 QSO 04 23 15.80072217 -01 20 33.0656073   17.50 17.00 16.28   ~ 1145 3
12 QSO B0438-43 QSO 04 40 17.17997576 -43 33 08.6043290   19.31 19.5 18.2   ~ 270 2
13 QSO B0454-463 QSO 04 55 50.77248730 -46 15 58.6797903   17.89 17.4 16.87   ~ 202 1
14 PMN J0456-6624 HII 04 56 51.7 -66 24 37           ~ 12 0
15 QSO J0457-2324 QSO 04 57 03.1791422424 -23 24 52.021129572   18.85 18.5 16.56   ~ 368 1
16 PMN J0518-6914 HII 05 18 46.7 -69 13 54           ~ 18 1
17 NAME Pic A Sy1 05 19 49.7229323856 -45 46 43.852662732   15.73 15.77 14.85   ~ 624 1
18 RX J0522.0-6756 HII 05 22 00.0 -67 57 53           ~ 12 1
19 QSO B0521-365 BLL 05 22 57.98464178 -36 27 30.8512953   15.26 14.62 14.48   ~ 789 2
20 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16422 1
21 NAME Ori A MoC 05 38 -07.1           ~ 2882 0
22 PKS J0538-6904 HII 05 38 42.5 -69 05 34           ~ 20 2
23 QSO B0537-441 BLL 05 38 50.36155950 -44 05 08.9390233   15.77 16.48 16   ~ 847 2
24 4C -02.22 Rad 05 41 16.90 -02 38 44.0           ~ 3 1
25 NAME Flame Nebula HII 05 41 42.7 -01 54 44           ~ 698 1
26 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1292 0
27 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 708 2
28 QSO B0607-157 QSO 06 09 40.94954062 -15 42 40.6727537   18.47 18.0 19.90   ~ 301 1
29 QSO J0635-7516 QSO 06 35 46.5079301472 -75 16 16.816418256   15.96 15.75 15.82   ~ 555 1
30 NAME GUM Nebula ISM 07 43 -42.1           ~ 409 1
31 QSO B0834-201 QSO 08 36 39.21525204 -20 16 59.5042773   19.45 19.4 18.76   ~ 190 1
32 4C 71.07 QSO 08 41 24.36528508 +70 53 42.1730435     16.5 16.8   ~ 737 1
33 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2211 1
34 4C 01.24B QSO 09 09 10.09159883 +01 21 35.6176206   17.63 17.29 17.04   ~ 399 2
35 ICRF J092703.0+390220 Sy1 09 27 03.01394144 +39 02 20.8518067   17.17 17.00 16.486   ~ 970 1
36 4C 01.28 BLL 10 58 29.60520810 +01 33 58.8237454   18.74 18.28 16.68   ~ 727 2
37 QSO B1057-797 BLL 10 58 43.30979475 -80 03 54.1598058   19.08   17.31   ~ 171 0
38 WMAP 170 QSO 12 29 06.3 +02 02 45           ~ 11 0
39 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 6789 3
40 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 2911 2
41 NEWPS5 J1310+3220 QSO 13 10 29.5 +32 20 51           ~ 13 0
42 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4303 3
43 QSO B1334-127 QSO 13 37 39.78278132 -12 57 24.6933925   18.5 18.5 16.22   ~ 465 1
44 6C 161147+342017 QSO 16 13 41.06424322 +34 12 47.9088535   17.98 17.46 17.07   ~ 607 1
45 IC 4604 GNe 16 26 -23.4   5.1       B2 17 0
46 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3421 1
47 4C 38.41 QSO 16 35 15.49297809 +38 08 04.5005995   18.14 17.97 17.25   ~ 816 1
48 3C 345 QSO 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1650 2
49 ICRF J170336.5-621240 BLL 17 03 36.54121471 -62 12 40.0085591   18.73   17.58   ~ 86 1
50 2C 1473 AGN 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 312 1
51 QSO B1730-130 QSO 17 33 02.70578907 -13 04 49.5482119   18 18.5 18.78 17.39 ~ 1083 1
52 QSO B1741-038 QSO 17 43 58.85613537 -03 50 04.6167326     18.5 17.98   ~ 514 1
53 WMAP J1751+0937 QSO 17 51 41.0 +09 41 10           ~ 8 0
54 QSO J1753+2848 QSO 17 53 42.47364223 +28 48 04.9388788   19.6   20.28   ~ 99 1
55 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 826 2
56 QSO B1921-293 BLL 19 24 51.05595254 -29 14 30.1210248   18.71 18.21 15.07   ~ 798 0
57 4C 73.18 BLL 19 27 48.4947009120 +73 58 01.572558816     15.5 15.11   ~ 513 2
58 4C 06.69 QSO 21 48 05.45866779 +06 57 38.6041877   16.85 16.47 15.06   ~ 637 1
59 QSO B2153-699 BLL 21 57 05.9801262624 -69 41 23.686042524   14.23 13.79 12.94   ~ 256 1
60 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2163 1
61 4C -03.79 QSO 22 18 52.03772044 -03 35 36.8795441   16.93 16.38 16.15   ~ 328 1
62 WMAP 61 Rad 22 20 09.5 +43 35 27           ~ 2 0
63 3C 446 BLL 22 25 47.25929101 -04 57 01.3907626   18.83 18.39 16.3   ~ 799 1
64 AT20G J222940-083254 QSO 22 29 40.08433313 -08 32 54.4355294   17.80 17.41 17.81   ~ 326 1
65 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 2719 2
66 ICRF J225805.9-275821 Sy1 22 58 05.96287687 -27 58 21.2567572   17.34 16.77 17.20   ~ 332 1

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2022.12.10-03:57:00

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