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dc.contributor.authorSaraiva, Maria de Fátima Oliveirapt_BR
dc.contributor.authorFerrari, Fabriciopt_BR
dc.contributor.authorPastoriza, Miriani Griseldapt_BR
dc.date.accessioned2014-07-18T02:04:39Zpt_BR
dc.date.issued1999pt_BR
dc.identifier.issn0004-6361pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/98099pt_BR
dc.description.abstractWe present BV RI CCD surface photometry for 4 elliptical and 2 S0 galaxies that show bright emission lines in their nuclear spectra. We obtained isophote maps, luminosity profiles, and basic photometric parameters. We also obtained continuum subtracted Hα +[NII] images for 5 galaxies in our sample, but only in two of them, NGC 6858 and ESO 185-54, we detected emission gas. We used the standard technique of ellipse fitting to determine the radial variation of surface brightness, color, ellipticity, position angle and the fourth order Fourier coefficient of the deviations from elliptical shape to look for isophotal twists, color gradients and fine structure variations. We have fitted an r1=n S´ersic law to the light profiles, finding that it provides a better fit to the light profiles of the ellipticals than the traditional r1/4 law. However, this lawdoes not provide a good fit for SO galaxies.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofAstronomy and astrophysics. Berlin. Vol. 350, no. 2 (Oct. 1999), p. 399-413pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxies: elliptical and lenticularen
dc.subjectGalaxias elipticaspt_BR
dc.subjectGalaxias lenticularespt_BR
dc.subjectCD – galaxies: photometryen
dc.subjectGalaxies: structureen
dc.subjectFotometriapt_BR
dc.subjectEstruturas galaticaspt_BR
dc.subjectLuminosidadept_BR
dc.titleMulticolor photometric properties of six early-type galaxiespt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000269608pt_BR
dc.type.originEstrangeiropt_BR


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