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J/AJ/123/1784       1.4 GHz imaging of the Bootes field      (de Vries+, 2002)

Deep Westerbork 1.4 GHz imaging of the Bootes field. de Vries W.H., Morganti R., Rottgering H.J.A., Vermeulen R., van Breugel W., Rengelink R., Jarvis M.J. <Astron. J. 123, 1784 (2002)> =2002AJ....123.1784D
ADC_Keywords: Radio sources ; Surveys Keywords: catalogs - radio continuum: galaxies - surveys Abstract: We present the results from our deep (16x12hr) Westerbork Synthesis Radio Telescope (WSRT) observations of the approximately 7°2 Bootes Deep Field, centered at 14h 32min 05.75s, 34° 16' 47.5" (J2000.0). Our survey consists of 42 discrete pointings, with enough overlap to ensure a uniform sensitivity across the entire field, with a limiting sensitivity of 28µJy (1σrms). The catalog contains 3172 distinct sources, of which 316 are resolved by the 13"x27" beam. The Bootes field is part of the optical/near-infrared imaging and spectroscopy survey effort conducted at various institutions. The combination of these data sets and the deep nature of the radio observations will allow unique studies of a large range of topics including the redshift evolution of the luminosity function of radio sources, the K-z relation, the clustering environment of radio galaxies, the radio/far-infrared correlation for distant starbursts, and the nature of obscured radio-loud active galactic nuclei. The observations were carried out by the WSRT operating at 1.380GHz. The WSRT consists of 14 25m-telescopes arranged in a 2.7km east-west configuration. As the back end, we used the digital continuum back end with eight subbands of 10MHz bandwidth each. The smallest baseline (9-A) was set to 54m to limit shadowing at the expense of a reduction in large spatial structure sensitivity (∼800" for this minimum baseline and frequency). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 109 73 Resolved Sources with Flux Densities Greater than 10 mJy catalog.dat 109 3172 WSRT Complete Source List: S/N > 5 6sigma.dat 109 2767 WSRT Complete Source List: S/N > 6 7sigma.dat 109 2367 WSRT Complete Source List: S/N > 7 8sigma.dat 109 2061 WSRT Complete Source List: S/N > 8 9sigma.dat 109 1854 WSRT Complete Source List: S/N > 9 10sigma.dat 109 1692 WSRT Complete Source List: S/N > 10 booapmm.dat 246 324 Correlation between WSRT radio positions and APM optical positions, resolved radio sources booapms.dat 246 871 Correlation between WSRT radio positions and APM optical positions, unresolved radio sources boowenss.dat 182 126 Correlation between our 1.4GHz fluxes and literature 325MHz (WENSS) fluxes
See also: I/267 : The APM-North Catalogue (McMahon+, 2000) VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998) ftp://ftp.nfra.nl/pub/Bootes : ftp site for this paper Byte-by-byte Description of file: table2.dat catalog.dat *sigma.dat
Bytes Format Units Label Explanations
1- 14 A14 --- [DMR2002] Source name (JHHMMSS+DDMMSS) 16 A1 --- f_[DMR2002] [e] Indicates object has an alternative name (1) 18- 19 I2 h RAh Hour of Right Ascension (J2000) 21- 22 I2 min RAm Minute of Right Ascension (J2000) 24- 28 F5.2 s RAs Second of Right Ascension (J2000) 30 A1 --- DE- Sign of the Declination (J2000) 31- 32 I2 deg DEd Degree of Declination (J2000) 34- 35 I2 arcmin DEm Arcminute of Declination (J2000) 37- 40 F4.1 arcsec DEs Arcsecond of Declination (J2000) 42- 44 F3.1 arcsec ePos The 1 σ radio positional uncertainty 48- 56 F9.5 deg RAdeg Right ascension in decimal degrees (J2000) 59- 66 F8.5 deg DEdeg Declination in decimal degrees (J2000) 68 A1 --- SType [SME] Source type (G1) 71- 76 F6.2 mJy Si1.4GHz The integrated flux at 1400MHz 78- 82 F5.2 mJy e_Si1.4GHz Uncertainty in F1.4GHz 84- 88 F5.3 mJy rms Local sky rms 91- 93 I3 arcsec MajDiam Apparent major diameter (2) 95- 97 I3 arcsec MinDiam Apparent minor diameter (2) 100-102 I3 deg PA Position Angle 104-109 F6.2 arcsec LAS Largest Angular Size (3)
Note (1): Alternative names: J142659+341159 = 7C 1412+344 J142739+330750 = 7C 1425+333 J143025+351914 = NGC 5656 J143048+333319 = 7C 1428+337 J143052+331320 = 7C 1428+334 J143134+351506 = 7C 1429+354 J143317+345108 = 7C 1431+350 J143342+341138 = 7C 1431+344 J143749+345452 = 7C 1435+351 Note (2): Angular extent of 2.5 σ contour. Sources with MajDiam/MinDiam∼2 and PA∼0 are considered barely resolved. Note (3): Resolved sources are deconvolved with the beam size, point source sizes are approximated by: LAS=Θbeam*(0.042+(6.0/SNR)2)1/4, cf. Rengelink et al. (1997, Cat. <J/A+AS/124/259).
Byte-by-byte Description of file: booapmm.dat booapms.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Source Source name (JHHMM.m+DDMM) 15- 16 I2 h RAh Source right ascension (J2000) 18- 19 I2 min RAm Source right ascension (J2000) 21- 25 F5.2 s RAs Source right ascension (J2000) 27 A1 --- DE- Declination sign (J2000) 28- 29 I2 deg DEd Declination sign (J2000) 31- 32 I2 arcmin DEm Declination sign (J2000) 34- 37 F4.1 arcsec DEs Declination sign (J2000) 40- 48 F9.5 deg RAdeg Source right ascension, in degrees (J2000) 50- 58 F9.5 deg DEdeg Source declination, in degrees (J2000) 59 A1 --- SType [MS] Source type (G1) 61 A1 --- Flag [*] Flag not explained in the paper 66- 71 F6.3 mJy Sp1.4GHz Peak flux at 1.4GHz 76- 82 F7.3 mJy Si1.4GHz Integrated flux at 1.4GHz 86- 88 I3 arcsec MajDiam Apparent major diameter 91- 93 I3 arcsec MinDiam Apparent minor diameter 95- 97 I3 deg PA Position angle 100-104 F5.3 mJy rms Local sky rms 109-114 A6 --- Inst Instrument (MOS_NN) 117-120 F4.1 arcsec Sep Separation between WSRT and APM sources 124-125 I2 h RAp.h APM source right ascension (J2000) 126 A1 --- --- [:] 127-128 I2 min RAp.m APM source right ascension (J2000) 129 A1 --- --- [:] 130-134 F5.2 s RAp.s APM source right ascension (J2000) 136 A1 --- DEp.- APM source declination (J2000) 137-138 I2 deg DEp.d APM source declination (J2000) 139 A1 --- --- [:] 140-141 I2 arcmin DEp.m APM source declination (J2000) 142 A1 --- --- [:] 143-146 F4.1 arcsec DEp.s APM source declination (J2000) 149-157 F9.5 deg RAp.deg APM source right ascension, in degrees (J2000) 159-166 F8.5 deg DEp.deg APM source declination, in degrees (J2000) 168-172 F5.2 mag rmag APM magnitude of red image 175-176 I2 --- rClass [-1,2] APM red image class code (1) 179-183 F5.2 --- rStel [-100,100] APM statistical deviation from PSF on red image (2) 187-190 F4.1 arcsec rDiam APM major axis diameter of image on red plate 192-195 F4.2 --- rEll [0,1] APM ellipticity (1-a/b) on red plate 197-199 I3 deg rPA APM position angle of the ellipse on red plate 204-209 F6.2 mag bmag APM magnitude of blue image 212-213 I2 --- bClass [-1,2] APM blue image class code (1) 216-220 F5.2 --- bStel [-100,100] APM statistical deviation from PSF on blue image (2) 224-227 F4.1 arcsec bDiam APM major axis diameter of image on blue plate 229-232 F4.2 --- bEll [0,1] APM ellipticity (1-a/b) on blue plate 234-236 I3 deg bPA APM position angle of the ellipse on blue plate 241-246 I6 --- ID Internal identification number
Note (1): The flag takes the folowing values: -1 = stellar 0 = noise 1 = non-stellar, probably galaxy 2 = merged image Note (2): The stellaricity is the statistical deviation from a normalized point-spread function (PSF): a negative value indicates a profile sharper than a star, and a positive value smoother
Byte-by-byte Description of file: boowenss.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Source Source name (JHHMM.m+DDMM) 15- 16 I2 h RAh Source right ascension (J2000) 18- 19 I2 min RAm Source right ascension (J2000) 21- 25 F5.2 s RAs Source right ascension (J2000) 27 A1 --- DE- Declination sign (J2000) 28- 29 I2 deg DEd Declination sign (J2000) 31- 32 I2 arcmin DEm Declination sign (J2000) 34- 37 F4.1 arcsec DEs Declination sign (J2000) 40- 48 F9.5 deg RAdeg Source right ascension, in degrees (J2000) 50- 58 F9.5 deg DEdeg Source declination, in degrees (J2000) 59 A1 --- SType [MSE] Source type (G1) 61 A1 --- Flag [*] Flag not explained in the paper 65- 71 F7.3 mJy Sp1.4GHz Peak flux at 1.4GHz 76- 82 F7.3 mJy Si1.4GHz Integrated flux at 1.4GHz 86- 88 I3 arcsec MajDiam Apparent major diameter 91- 93 I3 arcsec MinDiam Apparent minor diameter 95- 97 I3 deg PA Position angle 100-104 F5.3 mJy rms Local sky rms 109-114 A6 --- Inst Instrument (MOS_NN) 117-120 F4.1 arcsec Sep Separation between WSRT and WENSS sources 125-129 F5.2 pix Sepix Pixel separation between WSRT and WENSS sources 132-133 I2 h RAw.h WENSS source right ascension (J2000) 134 A1 --- --- [:] 135-136 I2 min RAw.m WENSS source right ascension (J2000) 137 A1 --- --- [:] 138-142 F5.2 s RAw.s WENSS source right ascension (J2000) 144 A1 --- DEw.- WENSS source declination (J2000) 145-146 I2 deg DEw.d WENSS source declination (J2000) 147 A1 --- --- [:] 148-149 I2 arcmin DEw.m WENSS source declination (J2000) 150 A1 --- --- [:] 151-154 F4.1 arcsec DEw.s WENSS source declination (J2000) 157-165 F9.5 deg RAw.deg WENSS source right ascension, in deg (J2000) 167-174 F8.5 deg DEw.deg WENSS source declination, in deg (J2000) 176 A1 --- STypew [MSEC] WENSS source type flag (1) 177 A1 --- Flagw [*] Flag not explained in the paper 180-182 I3 mJy S325MHz Flux at 325MHz from WENSS
Note (1): This flag indicates the source type as follows: S = Single component source M = Multicomponent source C = Component of a multicomponent source E = Extended source (more than four components)
Global notes: Note (G1): Source type as follows: S = point source, unresolved by 27.0x13.5" beam M = resolved, with up to 4 Gaussian components E = resolved, with more than 4 Gaussian components
History: From electronic version of the journal and copied at ftp://ftp.nfra.nl/pub/Bootes
(End) James Marcout, Patricia Bauer [CDS] 27-May-2002
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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