J/ApJS/123/219ivo://CDS.VizieR/J/ApJS/123/219doi:10.26093/cds/vizier.21230219CDSCondon J.J.Kaplan D.L.Terzian Y.2000-07-11T10:37:33Z2000-07-11T10:37:25ZCDS support team

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

cds-question@unistra.frplanetary-nebulaeinfrared-sourcesradio-sourcesIn order to construct a sample of planetary nebulae (PNe) unbiased by dust extinction, we first selected the 1358 sources in the IRAS Point Source Catalog north of J2000 declination DE=-40{deg} having measured S(25{mu}m)>=1 Jy and colors characteristic of PNe: detections or upper limits consistent with both S(12{mu}m)<=0.35S(25{mu}m) and S(25{mu}m)>=0.35S(60{mu}m). The majority are radio-quiet contaminating sources such as asymptotic giant branch stars. Free-free emission from genuine PNe should make them radio sources. The 1.4 GHz NRAO VLA Sky Survey (NVSS) images and source catalog were used to reject radio-quiet mid-infrared sources. We identified 454 IRAS sources with radio sources brighter than S~2.5 mJy/beam (equivalent to T~0.8K in the 45" FHWM NVSS beam) by positional coincidence. They comprise 332 known PNe in the Strasbourg-ESO Catalogue of Galactic Planetary Nebulae and 122 candidate PNe, most of which lie at very low Galactic latitudes. Exploratory optical spectroscopic observations suggest that most of these candidates are indeed PNe optically dimmed by dust extinction, although some contamination remains from H II regions, Seyfert galaxies, etc. Furthermore, the NVSS failed to detect only 4% of the known PNe in our infrared sample. Thus it appears that radio selection can greatly improve the reliability of PN candidate samples without sacrificing completeness.1999ApJS..123..219Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/123/219CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/123/219https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/123/219http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/123/219https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/123/219https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/123/219http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/123/219GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/123/219/table1 (Optical and radio data on GPN PNe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/123/219/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/123/219/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/123/219/table1?GETtext/xml+votable180.050000true261.97375-22.9550.005555555555555556Cone search capability for table J/ApJS/123/219/table3 (Radio and optical data for candidate PNe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/123/219/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/123/219/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/123/219/table3?GETtext/xml+votable180.050000true64.968333353.15750.0055555555555555565/7678 6/1956 3039 3059 3325 3659 3672 3749 3768 3771 3819 12987 13040 14011 14267 14348 14349 14353 14354 14409 14440 14453 14468 14592 14598 14787 14834 14922 15437 15459 15485 21504 21666 22016 22478 23674 24862 28711 28714 28723 28730 28771 28804 28806 28807 28809 28812 28818 28822 28823 28834 28849 28851 28855 28858 28859 28862 28875 28879 28889 28894 28900 28908 28917 28920 28925 29098 29102 29114 29157 29160 29162 29163 29166 29201 29213 29236 29248 29264 29516 29517 29528 29530 29533 29554 29595 29915 30216 30246 30247 30248 30313 30319 30329 30330 30349 30355 30385 30390 30397 30401 30406 30414 30417 30428 30429 30430 30453 30506 30602 30605 30607 30625 30631 30642 30695 30697 32069 32081 32093 32581 39279 39359 39403 42455 42469 42480 42483 42485 42493 42691 42828 42842https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/123/219?format=asciiInfraredRadiodefaultJ/ApJS/123/219/table1Optical and radio data on GPN PNerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intPNGName of Galactic PN (Cat. <V/84>)charRAJ2000Optical right ascension (J2000)DEJ2000Optical declination (J2000)e_Pos? rms uncertainty on optical positionarcsecintnullableRAr? Radio right ascension (J2000)nullablee_RAr.s? rms uncertainty on RArssfloatnullableDEr? Radio declination (J2000)nullablee_DEr.s? rms uncertainty on DErsarcsecfloatnullablel_S1.4GHz[><~] Limit flag on S1.4GHzcharS1.4GHzNVSS 1.4GHz flux densitymJyfloate_S1.4GHz? rms uncertainty on S1.4GHzmJyfloatnullablePhiM? Deconvolved FWHM major diameterarcsecintnullablePhim? Deconvolved FWHM minor diameterarcsecintnullablec? Extinction coefficient (log of the H{beta} extinction)floatnullableNote[E*] Extended source, or note (1)charJ/ApJS/123/219/table2Detected GPN PNerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intIRASIRAS PSC namecharPNGIAU name PN GcharJ/ApJS/123/219/table3Radio and optical data for candidate PNeIRASIRAS PSC namecharGLONGalactic longitudedegrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intGLATGalactic latitudedegfloatRAJ2000NVSS right ascension (J2000)e_RAsrms uncertainty on RA2ssfloatDEJ2000NVSS declination (J2000)e_DEsrms uncertainty on DE2sarcsecfloatS1.4GHzNVSS 1.4GHz flux densitymJyfloate_S1.4GHzrms uncertainty on S1.4GHzmJyfloatRAopt? Optical right ascension (J2000)nullableDEopt? Optical declination (J2000)nullablee_Pos? rms uncertainty on optical positionarcsecintnullableNote[*] a note is detailed in notes.dat filecharOsp[4] when an optical spectrum was taken (see table 4)charJ/ApJS/123/219/table4*Optical Spectra of brighter candidate PNerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intIRASIRAS PSC namecharm_IRASMultiplicity indicator on IRAS namechartIntObservation integration timesintDet[NY] Detection flagcharPNe[NY? ] PNe flagcharl_HaLimit flag on HacharHa? Line strength of H{alpha} (1)floatnullablel_[NII][~] Limit flag [NII]char[NII]? Line strength of [NII] 658.3nm (1)floatnullable[SII]? Line strength of [SII] 673.0nm (1)floatnullable[OIII]? Line strength of [OIII] 500.7nm (1)floatnullable[OI]? Line strength of [OI] 630.0nm (1)floatnullablel_cLimit flag on ccharc? Extinction coefficient (2)floatnullableNote[*] indicates a note detailed in file notes.datcharJ/ApJS/123/219/notesIndividual notesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intNameIRAS or PNG Namecharm_NameMultiplicity index on IRAScharNoteText of the notechar