J/ApJ/510/637ivo://CDS.VizieR/J/ApJ/510/637doi:10.26093/cds/vizier.15100637CDSHunt L. K.Malkan M. A.Moriondo G.Salvati M.2000-02-22T07:55:41Z2000-02-22T08:55:24ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesseyfert-galaxiesinfrared-photometrysurface-photometryWe have derived the near-infrared structural components of a sample of Seyfert and starburst (SBN) host galaxies by fitting near-infrared images with a new two-dimensional decomposition algorithm. An analysis of the fitted parameters shows that Seyfert 1 and SBN bulges resemble normal early-type bulges in structure and color, with (J-K)^c^_b_ about 0.1 mag redder than disk (J-K)^c^_d_. Seyfert 2 bulges, on the other hand, are bluer than normal, with (J-K)^c^_b_{approx}(J-K)^c^_d_. Seyfert disks (especially type 1), but not those of SBNs, are abnormally bright (in surface brightness), significantly more so than even the brightest normal disks. Seyfert disks are also compact, but similar to those in normal early-type spirals. For a given mass, Seyfert and particularly SBN galaxies are abnormally rich in neutral hydrogen, and there is strong, albeit indirect, evidence for lower mass-to-light (M/L) ratios in Seyfert and SBN disks, but normal M/L ratios in their bulges. In Seyfert and SBN galaxies, H I mass fractions and M/L ratios are anticorrelated, and we attribute the high gas mass fractions and low M/L ratios in SBNs and several Seyfert galaxies to ongoing star formation. Such abundant gas in Seyfert galaxies would be expected to inhibit bar formation, which may explain why active galaxies are not always barred.1999ApJ...510..637Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/510/637CatalogResearchIsServedByTAP VizieR generic servicerelated-toVII/155 : Third Reference Cat. of Bright Galaxies (RC3)J/AJ/108/2128 : RC3 corrections and additions (Corwin+ 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/510/637https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/510/637http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/510/637https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/510/637https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/510/637http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/510/637GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/ApJ/510/637/table1Near IR structural parametersNameGalaxy namecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intDistDistance (1)MpcfloatNBestBest fitting bulge exponentintu_NBest[:] colon signifies ill-determinedcharepsil? Ellipticity of the bulgefloatnullablee_epsil? Uncertainty in epsil of the bulgefloatnullableangBsiz? Angular scale length of the bulgearcsecfloatnullablee_angBsiz? Uncertainty in angBsiz of the bulgearcsecfloatnullablephyBsiz? Physical scale length of the bulgekpcfloatnullableKmagB? Surface brightness in K band of the bulge (2)mag.arcsec**-2floatnullablee_KmagB? Uncertainty in SB of the bulgemag.arcsec**-2floatnullableJ-K? J-K color of the bulgemagfloatnullableH-K? H-K color of the bulgemagfloatnullableKMagB? Absolute K band magnitude of the bulgemagfloatnullableincl? Inclination of the diskdegfloatnullablee_incl? Uncertainty in incldegfloatnullableangDsiz? Angular scale length of the diskarcsecfloatnullablee_angDsiz? Uncertainty in SLDarcsecfloatnullablephyDsiz? Physical scale length of the diskkpcfloatnullableSBD? Surface brightness in K band of the disk (2)mag.arcsec**-2floatnullablee_SBD? Uncertainty in SBD of the diskmag.arcsec**-2floatnullable(J-K)D? J-K color of the diskmagfloatnullable(H-K)D? H-K color of the diskmagfloatnullableKMagD? Absolute K band magnitude of the diskmagfloatnullableKMagGAbsolute K band magnitude of the galaxymagfloatchi2{chi}^2^ of the NBestfloat