J/MNRAS/363/769ivo://CDS.VizieR/J/MNRAS/363/769doi:10.26093/cds/vizier.73630769CDSSamurovic S.Danziger I.J.2024-07-01T20:15:27Z2006-07-14T13:45:39ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopygalaxy-kinematicsgalaxy-classification-systemsWe analyse long-slit spectra of four early-type galaxies which extend from ~1 to 3 effective radii: IC 1459; IC 3370; NGC 3379 and NGC 4105. We have extracted the full line-of-sight velocity distribution (in the case of NGC 3379 we also used data from the literature), which we model using the two-integral approach. Using two-integral modelling, we find no strong evidence for dark haloes, but the fits suggest that three-integral modelling is necessary. We also find that the inferred constant mass-to-light ratio in all the four cases is typical for early-type galaxies. Finally, we also discuss the constraints on the mass-to-light ratio, which can be obtained using X-ray haloes in the case of IC 1459, NGC 3379 and NGC 4105, and compare the estimated values with the predictions from the dynamical modelling.2005MNRAS.363..769Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/363/769CatalogResearchIsServedByTAP VizieR generic servicerelated-toVII/242 : LEDA galaxies with DENIS measurements catalog (Paturel+, 2005)VII/206 : General Photometry of Galaxies (Prugniel+ 1998)VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)VII/238 : HYPERLEDA. II. Homogenized HI data (Paturel+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/363/769https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/363/769http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/363/769https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/363/769https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/363/769http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/363/769GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/363/769/tablea1Photometric data of IC 1459 (Bmag)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRadRadiusarcsecstat.fit.paramfloatBmajB magnitude along major axismagphot.mag;em.opt.BfloatBminB magnitude along minor axismagphot.mag;em.opt.BfloatJ/MNRAS/363/769/tablea2Photometric data of IC 1459 (a4, PA)EllEllipticitysrc.ellipticityfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRadRadiusarcsecstat.fit.paramfloate_Ellrms uncertainty on Ellstat.errorfloata4a4 parameter (G1)stat.paramfloate_a4rms uncertainty on a4stat.errorfloatPAPosition angledegpos.posAngdoublee_PArms uncertainty on PAdegstat.errorfloatJ/MNRAS/363/769/tablea3Photometric data of IC 3370 (Bmag,a4, PA)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRadRadiusarcsecstat.fit.paramfloatBmajB magnitude along major axismagphot.mag;em.opt.BfloatBminB magnitude along minor axismagphot.mag;em.opt.BfloatEllEllipticitysrc.ellipticityfloate_Ellrms uncertainty on Ellstat.errorfloata4a4 parameter (G1)stat.paramfloate_a4rms uncertainty on a4stat.errorfloatPAPosition angledegpos.posAngfloate_PArms uncertainty on PAdegstat.errorfloatJ/MNRAS/363/769/tablea4Photometric data of NGC 3379 (a4, PA)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRadRadiusarcsecstat.fit.paramfloatEllEllipticitysrc.ellipticityfloate_Ellrms uncertainty on Ellstat.errorfloata4a4 parameter (G1)stat.paramfloate_a4rms uncertainty on a4stat.errorfloatPAPosition angledegpos.posAngdoublee_PArms uncertainty on PAdegstat.errorfloatJ/MNRAS/363/769/tablea5Photometric data of NGC 4105 (Bmag)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRadRadiusarcsecstat.fit.paramfloatBmajB magnitude along major axismagphot.mag;em.opt.BfloatBminB magnitude along minor axismagphot.mag;em.opt.BfloatJ/MNRAS/363/769/tablea6Photometric data of NGC 4105 (a4, PA)RadRadiusarcsecstat.fit.paramfloatEllEllipticitysrc.ellipticityfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordinte_Ellrms uncertainty on Ellstat.errorfloata4a4 parameter (G1)stat.paramfloate_a4rms uncertainty on a4stat.errorfloatPAPosition angledegpos.posAngdoublee_PArms uncertainty on PAdegstat.errorfloatJ/MNRAS/363/769/tableb1Kinematic data of IC 1459 (major axis)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloate_sigmarms uncertainty on sigmakm/sstat.errorfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloatJ/MNRAS/363/769/tableb2Kinematic data of IC 3370 (major axis)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloate_sigmarms uncertainty on sigmakm/sstat.errorfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloatJ/MNRAS/363/769/tableb3Kinematic data of IC 3370 (minor axis)e_sigmarms uncertainty on sigmakm/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloatJ/MNRAS/363/769/tableb4Kinematic data of IC 3370 (intermediate axis)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloate_sigmarms uncertainty on sigmakm/sstat.errorfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloatJ/MNRAS/363/769/tableb5Kinematic data of NGC 3379 (major axis)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloate_sigmarms uncertainty on sigmakm/sstat.errorfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloatJ/MNRAS/363/769/tableb6Kinematic data of NGC 4105 (major axis)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloate_sigmarms uncertainty on sigmakm/sstat.errorfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloatJ/MNRAS/363/769/tableb7Kinematic data of NGC 4105 (minor axis)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRad[-120/120] Radiusarcsecstat.fit.paramdoubleVelVelocitykm/sphys.veloc;stat.meandoublee_Velrms uncertainty on Velkm/sstat.errorfloatsigmaVelocity dispersionkm/sphys.veloc.dispersionfloate_sigmarms uncertainty on sigmakm/sstat.errorfloath3Gauss-Hermite h3 parameter (1)stat.paramfloate_h3rms uncertainty on h3stat.errorfloath4Gauss-Hermite h4 parameter (2)stat.paramfloate_h4rms uncertainty on h4stat.errorfloat