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J/ApJ/681/747      Extragalactic point-source WMAP catalog     (Chen+, 2008)

Extragalactic point-source search in WMAP 61 and 94 GHz data. Chen X., Wright E.L. <Astrophys. J., 681, 747-755 (2008)> =2008ApJ...681..747C
ADC_Keywords: Cross identifications ; Surveys ; Radio sources Keywords: cosmic microwave background - cosmology: observations - methods: data analysis Abstract: We report the results of an extragalactic point-source search using the 61 and 94GHz (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 5σ level. The 1σ 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 0.75Jy is estimated to be (2.4±0.8)x10-3uK2sr for the V band, which implies a source correction amplitude of A=0.012±0.004uK2sr. Description: The Wilkinson Microwave Anisotropy Probe (WMAP) was launched in 2001 for the purpose of making precise measurements of the cosmic microwave background (CMB) anisotropy (Bennett et al., 2003ApJS..148....1B). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 99 64 Point-source catalog: three years
See also: J/A+A/508/107 : WMAP3 catalogue (Giommi+, 2009) J/ApJS/180/283 : WMAP source catalog (Wright+, 2009) J/AZh/85/483 : Sources from the WMAP catalog (Vol'vach+, 2008) J/MNRAS/384/775 : Bright Source Sample of AT20G Survey (Massardi+, 2008) J/ApJS/170/288 : WMAP 3 Year Temperature Analysis (Hinshaw+, 2007) J/ApJS/171/61 : All-Sky Survey of Flat-Spectrum Radio Sources (Healey+, 2007) J/ApJS/170/108 : NEWPS source catalogue from WMAP (Lopez-Caniego+, 2007) J/ApJS/148/97 : The WMAP First Year Source Catalog (WMAP1) (Bennett+, 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Hour of right ascension (J2000) 4- 5 I2 min RAm Minute of right ascension (J2000) 7- 8 I2 s RAs Second of right ascension (J2000) 10 A1 --- DE- Declination sign (J2000) 11- 12 I2 deg DEd Degree of declination (J2000) 14- 15 I2 arcmin DEm Arcminute of declination (J2000) 17- 18 I2 arcsec DEs Arcsecond of declination (J2000) 20- 23 A4 --- --- [WMAP] 25- 34 A10 --- WMAP WMAP identification (JHHMM+DDMM) 36- 41 A6 --- Otype Object type 43- 47 F5.1 Jy FV WMAP V-band (4.9mm, 61GHz) flux 49- 51 F3.1 Jy e_FV The estimated 1σ error in FV 53- 66 A14 --- OName 5GHz counterpart if available 67 A1 --- f_OName [c] for multiple possible identification (1) 69- 71 A3 --- I/M [Y/N ] Y or N for Identified/Masked (2) 73- 79 A7 --- Refs Previous reference(s) (3) 81- 99 A19 --- Notes Notes
Note (1): 'c' indicates that source has multiple possible 5GHz identifications. The brightest one is given here. Note (2): Information on whether it is identified in this work and if it is included in the three-year WMAP point-source mask (Hinshaw et al., 2007, Cat. J/ApJS/170/288, <WMAP JHHMM+DDMM> in Simbad) (see Sect. 3 for a detailed discussion on the process of estimating and identifying the source flux), respectively. Note (3): References as follows: 1 = Source is included in the CRATES catalog (Healey et al., 2007, Cat. J/ApJS/171/61, <CRATES JHHMMSS+DDMMSS> in Simbad). 2 = Source is included in the AT20G BSS catalog (Massardi et al., 2008, Cat. J/MNRAS/384/775, <AT20G JHHMMSS.s+DDMMSS> or <[MEM2008] NNN> in Simbad). 3 = New point source, cross-detected in Lopez-Caniego et al. (2007, Cat. J/ApJS/170/108). 4 = New point source, cross-detected in Nie & Zhang (2007ChJAA...7..199N).
Nomenclature notes: Point-sources are mamed <[CW2008] JHHMMSS+DDMMSS> in Simbad. History: From electronic version of the journal
(End) Emmanuelle Perret [CDS] 27-Oct-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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