VIII/20ivo://CDS.VizieR/VIII/20CDSHaynes R.F.Caswell J.L.and Simons L.W.J.2012-09-24T08:55:50Z2007-08-10T12:35:33ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxy-planesmilky-way-galaxyradio-sourcesThis is a catalog of 915 sources in the galactic plane between l=190 - 360 - 40 for -2 < b < 2. The l, b pair of galactic coordinates is given in columns 1 and 2 and essentially constitutes the galactic source name. The 1950 equatorial coordinates for each source are given in columns 3 and 4, and values for the peak brightness temperature and flux density are given in columns 5 and 6. The reader should refer to Section 3 of the source reference for information relating to the determination of the flux densities. Column 7 gives an estimate of the source extension in minutes of arc. Extents are given for source in nonconfused regions only. Finally, in column 8 comments on each source are included where appropriate. Identifications with known supernova remnants are included from the compilation of Clark and Caswell (1976MNRAS.174..267C). Identifications with HII regions are based principally on H109alpha recombination-line emission data, which are mostly obtained from Wilson et al. (1970A&A.....6..364W) but with some unpublished Parkes observations included also. Source search techniques: The detection of sources from the survey maps was made using an automatic search routine with the CSIRO Cyber 76 computing system. Maps were held using the NOD-2 format (see Haslam 1974,1975) in machine readable form. Each map was systematically searched for sources above the background level equivalent to a main beam brightness temperature of 0.4 K. The initial search for sources consisted of identifying those grid points in the map which exceed the mean of the four adjacent surrounding points by a nominal 0.1 K (grid point are at the Nyquist sample interval). Subsequently, the 'rough' position and flux density were refined by a source-fitting technique. The fitting procedure involved using a 16-point beam, function, where the appropriate weighting for each grid point permitted the program to interpolate to the best position for the peak of the source while taking into account nearby galactic features. The beam-fitting procedure was used either side (alternating between right ascension and declination) of the nominal position to obtain the best estimate of the position of each source. The resulting positions have an accuracy comparable to the overall positional accuracy of the survey (30" arc). Peak main beam brightness temperatures (determined by fitting the 16-point beam response function at the deduced nominal position) are also accurate to within the survey accuracy. Sources with a peak beam brightness temperature of at least 0.2 K above the background are included, except in confused regions; a point source of 0.2 K corresponds to 0.26 Jy.1979AuJPA..48....1Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/VIII/20CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VIII/20https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VIII/20http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VIII/20https://vizier.cds.unistra.fr/viz-bin/votable?-source=VIII/20https://vizier.iucaa.in/viz-bin/votable?-source=VIII/20http://vizieridia.saao.ac.za/viz-bin/votable?-source=VIII/20GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VIII/20/table1 (915 radio sources in the galactic plane (positional accuracy ~ 30"))https://vizier.cds.unistra.fr/viz-bin/conesearch/VIII/20/table1?https://vizier.iucaa.in/viz-bin/conesearch/VIII/20/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/VIII/20/table1?GETtext/xml+votable180.050000true92.48773420.4612240.0055555555555555565/7206 7207 7275 7278 7383 7564 7604 10444 10453 10542 10543 10553 10556 10595 10609 10611 6/21504 21550 22208 22218 22249 23645 23982 28808 28809 28812 28813 28814 28818 28819 28852 28870 28874 28875 28890 28891 28892 28896 28897 28898 28900 28901 28912 28913 28915 28916 28918 28919 28920 29090 29091 29094 29095 29096 29097 29116 29118 29119 29162 29460 29461 29463 29504 29505 29507 29508 29510 29511 29512 29513 29515 29519 29522 29523 29528 29529 30216 30218 30219 30222 30240 30241 30244 30245 30247 30260 30262 30263 30267 30268 30269 30312 30313 30315 30317 30318 30319 30328 30329 30330 30401 30405 30420 30422 30423 30506 30507 30592 37239 37245 37246 37334 37335 37339 37341 37342 37343 37363 37364 37365 37366 37368 37369 37371 37372 37752 37837 37839 37850 37872 37884 37886 37893 37894 37895 37896 37897 37899 37904 37906 37921 37922 37923 37924 37926 37927 37928 37929 37931 37932 37937 38016 38017 38018 38024 38026 39267 39384 39386 39804 40619 41598 41599 41651 41653 41655 41656 41657 41658 41660 41661 41663 41670 41671 41673 41675 41676 41677 41678 41681 41682 41683 41684 41685 41687 41688 41689 41696 41699 41701 41704 41706 41756 41758 41759 41760 41763 41765 41766 41767 41769 41770 41772 41773 41780 41781 41782 41798 41799 41800 41802 41803 41804 41805 41806 41809 41811 41816 41817 41818 41820 41824 41856 42158 42159 42163 42190 42206 42207 42210 42211 42216 42218 42221 42228 42229 42230 42376 42379 42387 42390 42391 42392 42393 42395 42396 42397 42398 42400 42417 42433 42434 42435 42440 42441 42443 42448 42450 42451 42455 42456 42457 42458 42460 42461 42462 42481 42496 42497 42498 42500 42501 42502 42512 42516 43013 43015 43017 43018 43019 43020 43021 43024 43026 43027 43040 43041 473023.313034785154005e-24 3.313034785154005e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/VIII/20?format=asciiRadiodefaultVIII/20/table1915 radio sources in the galactic plane (positional accuracy ~ 30")recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1950Right Ascension 1950pos.eq.ra;meta.mainDE1950Declination 1950pos.eq.dec;meta.mainTbPeak brightness temperatureKobs.paramfloatS? Flux density at 5GHzJyphot.flux.density;em.radio.3-6GHzfloatnullabledim1? Extent (first dimension) or dim1arcminphys.angSizeintnullabledim2? Extent (second dimension) or dim2arcminphys.angSize.sminAxisintnullableComIdentification Commentmeta.id;meta.mainchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed