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J/AJ/138/1032       Filling in the gaps in the 4.85GHz sky       (Healey+, 2009)

Filling in the gaps in the 4.85 GHz sky. Healey S.E., Fuhrmann L., Taylor G.B., Romani R.W., Readhead A.C.S. <Astron. J., 138, 1032-1036 (2009)> =2009AJ....138.1032H
ADC_Keywords: Radio continuum ; Surveys ; Radio sources ; Active gal. nuclei Keywords: galaxies: active - quasars: general - radio continuum: galaxies - surveys Abstract: We describe a 4.85GHz survey of bright, flat-spectrum radio sources conducted with the Effelsberg 100m telescope in an attempt to improve the completeness of existing surveys, such as CRATES. We report the results of these observations and of follow-up 8.4GHz observations with the VLA of a subset of the sample. We comment on the connection to the Wilkinson Microwave Anisotropy Probe point source catalog and on the survey's effectiveness at supplementing the CRATES sky coverage. Description: Our work concerns two distinct regions on the sky. The "north polar cap" is the region +75°<δ<+90°, spanning all right ascensions. The "PMN holes" are two nearly parallelogram-shaped regions just south of the equator. Their vertices, given as (α, δ) in decimal degrees (J2000 coordinates), are approximately as follows: PMN hole 1: (175°, 0°); (183°, 0°); (197°, -9.5°); (188°, -9.5°). PMN hole 2: (195°, 0°); (217°, 0°); (235°, -9.5°); (210°, -9.5°). North polar cap sources were selected from the Westerbork Northern Sky Survey (WENSS; Rengelink et al. 1997, Cat. J/A+AS/124/259; obsoleted by Cat. VIII/62) while in the PMN holes, sources were selected from the Texas Survey (Douglas et al. 1996, Cat. VIII/42). We identified NVSS (Cat. VIII/65) sources with counterparts in WENSS/Texas. The flux density measurements of the selected sources were performed with the Effelsberg 100m telescope of the Max-Planck-Institut fur Radioastronomie (MPIfR) during two observing runs in 2008 June and July with a total observing time of ∼24hr. We conducted a follow-up campaign on 109 sources (72 in the north polar cap and 37 in the PMN holes), with the VLA in the A configuration, using two 50MHz bands at 8.44GHz. The observations took place on 2008 November 1 as part of program AH0976. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 81 214 Sources in the north polar cap table2.dat 81 209 Sources in the PMN holes
See also: VIII/85 : SPECFIND V2.0 Catalog of radio continuum spectra (Vollmer+ 2009) VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998) VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998) VIII/42 : Texas Survey of radio sources at 365MHz (Douglas+ 1996) VIII/40 : GB6 catalog of radio sources (Gregory+ 1996) VIII/38 : The Parkes-MIT-NRAO 4.85GHz (PMN) Surveys (Griffith+ 1993-1996) VIII/45 : Southern flat-spectrum sources (White+ 1987-1991) VIII/13 : A new catalog of 53522 4.85GHz sources (Becker+ 1991) VIII/14 : 87GB Catalog of radio sources (Gregory et al., 1991) J/MNRAS/410/2690 : CRATES sources at 30 GHz (Peel+, 2011) J/MNRAS/401/1240 : Light curves of flat-spectrum radio sources (Jenness+, 2010) J/A+A/501/801 : CBI sample at 4.85GHz and 10.45GHz (Angelakis+, 2009) J/AZh/85/314 : Flat-spectrum radio sources (Gorshkov+, 2008) J/ApJS/171/61 : All-Sky Survey of Flat-Spectrum Radio Sources (Healey+, 2007) J/ApJS/170/288 : WMAP 3 Year Temperature Analysis (Hinshaw+, 2007) J/MNRAS/357/1231 : Texas-Oxford NVSS (TONS) radio galaxies (Brand+, 2005) J/AJ/130/2529 : 8.4GHz VLBI observations of Southern ICRF sources (Ojha+, 2005) J/AZh/77/407 : Flat-spectrum radio sources at 0.97-21.7GHz (Gorshkov+, 2000) J/ApJ/405/498 : Counts and spectral indices at 8.44GHz (Windhorst+, 1993) J/ApJ/378/65 : 8.4GHz observations of compact starbursts (Condon+ 1991) J/A+A/85/329 : 4.85GHz extragalactic sources (Pauliny-Toth+ 1980) J/A+AS/124/259 : Westerbork Northern Sky Survey I. (Rengelink+ 1997) Byte-by-byte Description of file: table[12].dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Source name (JHHMM+DDMM format; <NVSS JHHMMSS+DDMMSS> in Simbad) 12- 13 I2 h RAh NVSS Hour of Right Ascension (J2000) 15- 16 I2 min RAm NVSS Minute of Right Ascension (J2000) 18- 22 F5.2 s RAs NVSS Second of Right Ascension (J2000) 24 A1 --- DE- NVSS Sign of the Declination (J2000) 25- 26 I2 deg DEd NVSS Degree of Declination (J2000) 28- 29 I2 arcmin DEm NVSS Arcminute of Declination (J2000) 31- 34 F4.1 arcsec DEs NVSS Arcsecond of Declination (J2000) 36- 41 F6.1 mJy S4.85 Flux density at 4.85GHz (Effelsberg 100m) 43- 46 F4.1 mJy e_S4.85 The 1σ error in S4.85 48- 49 I2 h RA8h ? Hour of Right Ascension at 8.4GHz (J2000) 51- 52 I2 min RA8m ? Minute of Right Ascension at 8.4GHz (J2000) 54- 59 F6.3 s RA8s ? Second of Right Ascension at 8.4GHz (J2000) 61 A1 --- DE8- Sign of the Declination at 8.4GHz (J2000) 62- 63 I2 deg DE8d ? Degree of Declination at 8.4GHz (J2000) 65- 66 I2 arcmin DE8m ? Arcminute of Declination at 8.4GHz (J2000) 68- 72 F5.2 arcsec DE8s ? Arcsecond of Declination at 8.4GHz (J2000) 74- 79 F6.1 mJy S8.4 ? Flux density at 8.4GHz (VLA) (1) 81 A1 --- f_S8.4 [b] component resolved or partially resolved
Note (1): Typical error is ∼3%.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 20-Jan-2012
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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