VIII/XXXX A final non-redundant catalogue for 7C 151-MHz survey (Hales+ 2007) ================================================================================ A final non-redundant catalogue for the 7C 151-MHz survey Hales S.E.G., Riley J.M., Waldram E.M., Warner P.J., Baldwin J.E. =2007MNRAS.382.1639H (SIMBAD/NED BIBCODE) ================================================================================ ADC_Keywords: Radio sources ; Surveys Keywords: catalogues - surveys - radio continuum: general Description: We present a final unified catalogue for the 7C survey at 151 MHz with resolution 70 x 70cosec(dec) arcsec ^2^. This has been constructed by amalgamating the existing catalogues derived from individual fields imaged at this resolution and eliminating redundancy in regions of mutual overlap. This is a non-trivial procedure because the flux in multiple-component sources may be fitted differently on alternative images, owing, for example, to differences in local noise and beam distortion. The final catalogue thus produced contains 43683 sources. Separate final catalogues have been published for the 7C Galactic Plane survey (7CG) and the lower-resolution survey of the low-declination strip 9h < RA < 16h, 20deg < Dec < 35deg. -------------------------------------------------------------------------- The individual catalogues for about 40 of the regions contributing to the total have already been published, together with full details of the methodology, in MNRAS or A&AS: Lacy et al. 1995, MNRAS, 276, 614 (=1995MNRAS.276..614L) (#92 below) Visser et al. 1995, A&AS, 110, 419 (=1995A&AS..110..419V) (#93 below) Pooley et al. 1998, MNRAS, 298, 637 (=1998MNRAS.298..637P) (#94-96 below) Riley et al. 1999, MNRAS, 306, 31 (=1999MNRAS.306...31R) (# 1-33 below) and these data are also available via the MRAO website at http://www.mrao.cam.ac.uk/surveys/7C/ Individual catalogues for the remaining 58 regions by Riley et al. (#34-91 below) were released electronically via the MRAO website in November 2001. These include a re-analysis of data originally published in rather a different parametrization by McGilchrist et al. 1990, MNRAS, 246, 110 (=1990MNRAS.246..110M) The regions re-analyzed are those numbered #41,44,59,60,62 and 63 below and they supersede McGilchrist's 1990 publication. The RAxDec coverage, average rms noise, flux density of the faintest source listed and completeness limit for each of the individual regions contributing to the final catalogue are given in the table below. av.rms noise here is the average rms noise before primary beam correction. All coordinates are equinox B1950. -------------------------------------------------------------------------- Region Coverage RA x Dec (see notes*) av.rms noise Sfaint Scomp -------------------------------------------------------------------------- (1-33 from Riley et al. 1999MNRAS.306...31R) 1 0722+45 07h01m-07h44m;39deg50m-50deg10m 20mJy 100mJy 260mJy 2 0730+36 07h12m-07h48m;29deg10m-41deg50m 19mJy 80mJy 320mJy 3 0757+45 07h36m-08h18m;39deg50m-50deg10m 26mJy 110mJy 320mJy 4 0800+36 07h42m-08h18m;29deg10m-41deg50m 20mJy 90mJy 300mJy 5 0830+36 08h12m-08h48m;29deg10m-41deg50m 18mJy 90mJy 270mJy 6 0832+45 08h11m-08h53m;39deg50m-50deg10m 24mJy 110mJy 270mJy 7 0903+34 08h45m-09h21m;26deg40m-40deg10m 26mJy 100mJy 490mJy 8 0906+45 08h45m-09h27m;39deg50m-50deg10m 25mJy 120mJy 300mJy 9 0925+53 09h00m-09h53m;49deg12m-58deg20m 17mJy 70mJy 200mJy 10 0937+36 09h19m-09h55m;29deg10m-41deg50m 21mJy 90mJy 330mJy 11 1119+36 11h01m-11h37m;29deg10m-41deg50m 23mJy 110mJy 320mJy 12 1119+46 10h58m-11h40m;41deg30m-51deg40m 20mJy 80mJy 240mJy 13 1143+50 11h20m-12h06m;42deg20m-56deg50m 18mJy 90mJy 360mJy 14 1153+36 11h35m-12h11m;29deg10m-41deg50m 21mJy 100mJy 280mJy 15 1153+46 11h32m-12h14m;41deg30m-51deg40m 21mJy 90mJy 270mJy 16 1218+52 11h54m-12h42m;44deg40m-58deg40m 24mJy 120mJy 490mJy 17 1226+36 12h08m-12h44m;29deg10m-41deg50m 20mJy 90mJy 290mJy 18 1228+41 12h08m-12h48m;36deg00m-47deg10m 28mJy 130mJy 360mJy 19 1239+32 12h22m-12h57m;25deg10m-39deg10m 19mJy 100mJy 460mJy 20 1253+45 12h32m-13h14m;39deg50m-50deg10m 23mJy 110mJy 270mJy 21 1328+47 13h06m-13h50m;42deg30m-52deg30m 29mJy 150mJy 330mJy 22 1400+36 13h42m-14h18m;29deg10m-41deg50m 25mJy 120mJy 410mJy 23 1400+46 13h39m-14h21m;41deg30m-51deg40m 25mJy 100mJy 290mJy 24 1430+36 14h12m-14h48m;29deg10m-41deg50m 18mJy 90mJy 320mJy 25 1430+46 14h09m-14h51m;41deg30m-51deg40m 30mJy 140mJy 360mJy 26 1500+36 14h42m-15h18m;29deg10m-41deg50m 23mJy 130mJy 310mJy 27 1500+46 14h39m-15h21m;41deg30m-51deg40m 24mJy 110mJy 280mJy 28 1530+36 15h12m-15h48m;29deg10m-41deg50m 22mJy 120mJy 290mJy 29 1530+46 15h09m-15h51m;41deg30m-51deg40m 23mJy 100mJy 270mJy 30 1600+36 15h42m-16h18m;29deg10m-41deg50m 24mJy 130mJy 340mJy 31 1600+46 15h39m-16h21m;41deg30m-51deg40m 25mJy 130mJy 270mJy 32 1600+52 15h36m-16h24m;44deg40m-58deg40m 24mJy 120mJy 430mJy 33 1630+46 16h09m-16h51m;41deg30m-51deg40m 28mJy 140mJy 300mJy (34-91 from Riley et al. 2001: 58 regions at www.mrao.cam.ac.uk/surveys/7C/) 34 0040+41 00h19m-01h00m;34deg59m-46deg13m 18mJy 90mJy 220mJy 35 0214+32 01h56m-02h3m2;24deg08m-38deg19m 17mJy 70mJy 390mJy 36 0219+42 01h58m-02h41m;36deg14m-47deg17m 16mJy 60mJy 200mJy 37 0223+61 01h47m-02h57m;57deg29m-65deg55m 17mJy 70mJy 190mJy 38 0316+41 02h56m-03h37m;35deg17m-46deg29m 18mJy 80mJy 270mJy 39 0445+45 04h22m-05h07m;39deg27m-49deg57m 19mJy 90mJy 220mJy 40 0600+85 00h22m-23h58m;79deg03m-90deg00m 29mJy 130mJy 420mJy 41 0608+45 05h46m-06h30m;39deg41m-50deg09m 14mJy 70mJy 180mJy 42 0630+36 06h10m-06h49m;29deg10m-41deg47m 26mJy 130mJy 360mJy 43 0640+75 05h21m-07h50m;69deg06m-80deg35m 22mJy 120mJy 320mJy 44 0647+45 06h25m-07h10m;39deg40m-50deg08m 14mJy 60mJy 180mJy 45 0700+36 06h41m-07h18m;29deg18m-41deg46m 26mJy 100mJy 370mJy 46 0720+56 06h50m-07h50m;49deg00m-62deg16m 23mJy 120mJy 440mJy 47 0800+56 07h29m-08h30m;49deg00m-62deg16m 30mJy 130mJy 510mJy 48 0800+75 06h49m-09h14m;68deg57m-80deg27m 24mJy 120mJy 340mJy 49 0817+27 08h00m-08h34m;21deg35m-32deg12m 18mJy 70mJy 270mJy 50 0820+65 07h36m-09h02m;58deg45m-70deg45m 23mJy 120mJy 360mJy 51 0830+85 00h26m-15h22m;79deg02m-90deg00m 35mJy 160mJy 480mJy 52 0840+56 08h11m-09h10m;48deg58m-62deg24m 28mJy 150mJy 550mJy 53 0910+65 08h32m-09h52m;58deg40m-70deg56m 28mJy 160mJy 430mJy 54 0920+56 08h50m-09h50m;48deg50m-62deg22m 25mJy 110mJy 440mJy 55 0920+75 08h07m-10h34m;69deg04m-80deg35m 28mJy 120mJy 420mJy 56 0940+47 09h17m-10h02m;41deg34m-51deg45m 19mJy 100mJy 270mJy 57 1000+56 09h29m-10h31m;48deg57m-62deg23m 25mJy 130mJy 470mJy 58 1000+65 09h18m-10h40m;58deg36m-70deg55m 26mJy 140mJy 470mJy 59 1008+46 09h46m-10h32m;41deg13m-51deg31m 14mJy 60mJy 180mJy 60 1012+36 09h53m-10h31m;29deg01m-41deg48m 15mJy 50mJy 240mJy 61 1040+75 09h24m-11h50m;69deg04m-80deg30m 29mJy 150mJy 470mJy 62 1046+36 10h27m-11h06m;28deg57m-41deg50m 13mJy 60mJy 230mJy 63 1046+46 10h23m-11h09m;41deg16m-51deg33m 13mJy 50mJy 170mJy 64 1050+52 10h24m-11h17m;44deg30m-58deg42m 25mJy 120mJy 500mJy 65 1050+65 10h09m-11h34m;58deg38m-70deg53m 30mJy 160mJy 470mJy 66 1133+55 11h05m-12h02m;50deg32m-59deg33m 18mJy 90mJy 230mJy 67 1140+65 10h58m-12h18m;58deg48m-70deg55m 29mJy 160mJy 410mJy 68 1200+75 10h44m-13h17m;69deg05m-80deg35m 31mJy 170mJy 450mJy 69 1230+65 11h49m-13h13m;58deg49m-70deg46m 31mJy 190mJy 400mJy 70 1258+35 12h39m-13h18m;28deg00m-41deg05m 14mJy 60mJy 240mJy 71 1300+56 12h29m-13h29m;48deg53m-62deg18m 33mJy 190mJy 580mJy 72 1320+65 12h40m-14h00m;58deg48m-70deg54m 24mJy 140mJy 360mJy 73 1320+75 11h59m-14h46m;69deg08m-80deg36m 25mJy 140mJy 360mJy 74 1340+56 13h10m-14h09m;48deg50m-62deg24m 33mJy 180mJy 770mJy 75 1410+65 13h26m-14h49m;58deg30m-70deg56m 28mJy 160mJy 590mJy 76 1420+56 13h50m-14h49m;49deg05m-62deg20m 32mJy 160mJy 480mJy 77 1440+75 13h23m-15h57m;69deg06m-80deg35m 28mJy 160mJy 380mJy 1500+56 corrupted replaced by 1500+60 (data from unpublished pointings) 78 1500+60 14h30m-15h30m;53deg10m-62deg02m 26mJy 150mJy 400mJy 79 1500+65 14h20m-15h43m;58deg39m-70deg35m 26mJy 150mJy 410mJy 80 1540+56 15h09m-16h11m;48deg53m-62deg07m 27mJy 150mJy 510mJy 81 1600+80 13h50m-18h04m;74deg05m-85deg29m 26mJy 140mJy 400mJy 82 1630+36 16h11m-16h49m;29deg03m-41deg45m 24mJy 120mJy 390mJy 83 1640+52 16h12m-17h07m;44deg29m-58deg40m 21mJy 100mJy 430mJy 84 1700+36 16h41m-17h20m;29deg03m-41deg47m 25mJy 130mJy 420mJy 85 1700+46 16h37m-17h24m;41deg20m-51deg34m 24mJy 130mJy 280mJy 86 1720+52 16h53m-17h48m;44deg33m-58deg37m 23mJy 120mJy 440mJy 87 1730+36 17h10m-17h48m;29deg01m-41deg49m 25mJy 120mJy 440mJy 88 1730+46 17h07m-17h53m;41deg19m-51deg32m 25mJy 130mJy 270mJy 89 1800+36 17h41m-18h19m;29deg01m-41deg40m 23mJy 120mJy 380mJy 90 1800+46 17h38m-18h23m;41deg26m-51deg32m 25mJy 130mJy 280mJy 91 1800+52 17h33m-18h26m;44deg33m-58deg38m 24mJy 130mJy 430mJy (92 from Lacy et al. 1995MNRAS.276..614) 92 1800+66 17h30m-18h30m;62deg20m-69deg30m 13mJy 40mJy 120mJy (93 from Visser et al. 1995A&AS..110..419 - an amalgamation of seven pointings) 93 1700+65 15h25m-18h35m;53deg40m-75deg50m 25mJy 80mJy 400mJy (94-96 from Pooley et al. 1998MNRAS.298..637) 94 1005+53 09h40m-10h30m;49deg05m-58deg20m 15mJy 50mJy 170mJy 95 1042+57 10h10m-11h10m;53deg00m-61deg45m 13mJy 50mJy 150mJy 96 1332+38 13h15m-13h50m;31deg40m-43deg45m 14mJy 50mJy 200mJy -------------------------------------------------------------------------- *Note: RA coverage is indicated by approx RA range at Dec of field centre *Note: Dec coverage is indicated by approx Dec range at RA of field centre -------------------------------------------------------------------------- 1-sigma errors on the listed source positions may be approximated by: Right Ascension error(arcsec) = SQRT(1.0**2 + (32/SNR)**2) Declination error(arcsec) = Kcosec(dec) x (RA error) where (approx) K= 1.0 around dec 70, increasing to 1.3 below dec 50 , and 1-sigma errors on the listed flux densities may be approximated by: Error on S beam-fitted(Jy) = SQRT(0.03**2 + SNR**-2) x S(Jy) Error on SINT(Jy) = 1.5 x SQRT(0.03**2 + SNR**-2) x SINT(Jy) where SNR, S and SINT correspond to the columns denoted by those names in the byte-by-byte description below. For multi-component sources the SNR for the brightest component is used to estimate the SINT error. For further details of the surveys and data analysis procedures please refer to the published papers referenced at the head of this file and references therein. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file 7C_final.dat 86 43683 7C sourcelist of 43683 sources -------------------------------------------------------------------------------- Byte-by-byte Description of file: 7C_final.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 I2 h RAh Beam-fitted position right ascension B1950 4- 5 I2 min RAm Beam-fitted position right ascension B1950 7- 10 F4.1 s RAs Beam-fitted position right ascension B1950 12 A1 - DE- Beam-fitted position declination (sign) 13- 14 I2 deg DEd Beam-fitted position declination B1950 16- 17 I2 arcmin DEm Beam-fitted position declination B1950 19- 20 I2 arcsec DEs Beam-fitted position declination B1950 24- 25 I2 h RAIh Centroid position right ascension B1950 27- 28 I2 min RAIm Centroid position right ascension B1950 30- 33 F4.1 s RAIs Centroid position right ascension B1950 35 A1 - DEI- Centroid position declination (sign) 36- 37 I2 deg DEId Centroid position declination B1950 39- 40 I2 arcmin DEIm Centroid position declination B1950 42- 43 I2 arcsec DEIs Centroid position declination B1950 47- 52 F6.3 Jy/beam S Beam-fitted flux density 54- 59 F6.3 Jy SINT Integrated flux density 61- 65 F5.1 --- SNR Signal-to-noise ratio 67- 70 F4.1 --- EXTENT Extent of the source in units of local beam area 74 I1 --- NMAX *Number of local maxima within the integrated region 76- 79 I4 --- ICOMP *Serial number identifying complex source (set to 0 if NMAX=1) 81- 86 I6.6 --- MAPCEN *Field from which data record originates -------------------------------------------------------------------------------- Note on NMAX and ICOMP: ICOMP is a serial number denoting a particular complex source - it has the same value for all the NMAX components (local maxima) which belong to that particular source, allowing the user to associate its individual components listed in the catalogue, no matter how the catalogue is ordered. NMAX specifies the total number of components. For a source with only one component NMAX=1 and ICOMP is set to 0 Note on MAPCEN: Field from which data originates as per 'Region' in table above but excluding + sign eg: Region 0722+45 becomes MAPCEN 072245 -------------------------------------------------------------------------------- History: A spurious negative value of NMAX in row 28028 of 7C_final.dat was corrected on 24-Jan-2008 ================================================================================ (End) Sally Hales [MRAO] 25-Jan-2008