J/ApJS/101/259ivo://CDS.VizieR/J/ApJS/101/259doi:10.26093/cds/vizier.21010259CDSThompson D.J.Bertsch D.L.Dingus B.L.Esposito J.A.Etienne A.,Fichtel C.E.Friedlander D.P.Hartman R.C.Hunter S.D.,Kendig D.J.Mattox J.R.McDonald L.M.von Montigny C.,Mukherjee R.Ramanamurthy P.V.Sreekumar P.Fierro J.M.,Lin Y.C.Michelson P.F.Nolan P.L.Shriver S.K.Willis T.D.,Kanbach G.Mayer-Hasselwander H.A.Merck M.Radecke H.-D.,Kniffen D.A.Schneid E.J.1999-08-21T12:08:04Z1997-12-09T21:01:56ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomyThe second catalog of high-energy gamma-ray observations from the Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory includes data from Phase 1 (1991 April - 1992 November) and Phase 2 (1992 November - 1993 September) of the mission. In addition to including more data than the first EGRET catalog (1994ApJS...94..551F), this catalog uses an improved model of the diffuse galactic gamma radiation. The 129 sources in the catalog include one solar flare bright enough to be detected as a source, the Large Magellanic Cloud, five pulsars, 40 high-confidence identifications of active galactic nuclei, 11 AGN identifications with lower confidence, and 71 sources not yet identified with known objects. Also included a re approximate upper limits for gamma-ray sources at any point in the sky and information about sources listed in the first EGRET catalog but not appearing in this one. The main catalog (table 4) was revised slightly after the preprint was made.1995ApJS..101..259Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/101/259CatalogResearchIsServedByTAP VizieR generic serviceIsPreviousVersionOfJ/ApJS/123/79IsServedByConesearch servicerelated-to<ftp://gamma.gsfc.nasa.gov/pub/second_catalog><ftp://gamma.gsfc.nasa.gov/pub/first_catalog>https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/101/259https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/101/259http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/101/259https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/101/259https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/101/259http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/101/259GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/101/259/table4 (The Second EGRET Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/101/259/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/101/259/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/101/259/table4?GETtext/xml+votable180.050000true0.0720.690.005555555555555556CGROhttps://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/101/259?format=asciiGamma-raydefaultJ/ApJS/101/259/table4The Second EGRET CatalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2EGName based on the J2000 coordinates (1)meta.id;meta.maincharRAJ2000J2000 right ascension measured by EGRETdegpos.eq.ra;meta.mainDEJ2000J2000 declination measured by EGRETdegpos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatMajErr? Semimajor axis of error ellipse (2)arcminphys.size.smajAxisintMinErr? Semiminor axis of error ellipse (2)arcminphys.angSize;srcintpaErr? position angle of error ellipse (2)degpos.posAngintMorph[CEem ] Morphology (3)src.morph.typecharl_Flux[<] upper limit for non-detectionsmeta.code.errorcharFluxthe flux (E>100MeV)1e-08count.cm**-2.s**-1phot.flux;em.X-rayfloate_Flux? 1-sigma statistical uncertainty in Flux1e-08count.cm**-2.s**-1stat.errorfloatSpIndex? photon number spectral index (4)spect.indexfloate_SpIndex? 1-sigma uncertainty in SpIndexstat.errorfloatl_Counts[<] Limit flag for Countsmeta.code.errorcharCountsNumber of E>100 MeV photons (5)ctphot.count;em.gamma.softintsqrtTSStatistical significance of detection (6)stat.likelihood;obsfloatVPViewing Period of the Observation (7)time.epochcharID[PGAa] Identification of the detection (8)meta.notecharOtherNameOther name of the Identification (9)meta.idcharNote[1/6]? Individual note (10)meta.noteintRef[a-z, ] Referencesmeta.refchar