Abstract. What we look for in an image is scale-dependent. Multiresolution allows for image analy... more Abstract. What we look for in an image is scale-dependent. Multiresolution allows for image analysis in terms of different scales. Scalespace filtering, quadtrees, pyramid representations, and the wavelet transform have all been used to yield multi-resolution views of an image. One
Presence of recent star formation in a number of nearby early-type galaxies (ETGs), has been reve... more Presence of recent star formation in a number of nearby early-type galaxies (ETGs), has been revealed both by morphological distortions, and by spectral "anomalies" such as relatively stronger Hydrogen absorption features. The latter are particularly relevant for the dating of these galaxies because even minor rejuvenation events can significantly alter the derived average age of the stellar populations. In order
Deep imaging and long-slit spectroscopy was obtained for a sample of dwarf ellipticals in the For... more Deep imaging and long-slit spectroscopy was obtained for a sample of dwarf ellipticals in the Fornax cluster, NGC 5044 and NGC 5898 groups using the ESO VLT. The observational data extend out to typically 1.5 2 effective radii and indicate a kinematic dichotomy in the family of ellipticals. The observed stellar kinematics indicate a luminosity velocity dispersion relation largely supporting
Abstract. We present deep Hα+[NII] narrowband imaging of FCC046 and FCC207, two dwarf ellipticals... more Abstract. We present deep Hα+[NII] narrowband imaging of FCC046 and FCC207, two dwarf ellipticals (dEs) in the Fornax Cluster. Although one does not expect much of an interstellar medium (ISM) to be present in dEs, FCC207 shows a central emission region, whereas FCC046 ...
We present a comparison between ionized gas and stellar kinematics for a sample of 5 early-to-int... more We present a comparison between ionized gas and stellar kinematics for a sample of 5 early-to-intermediate disk galaxies. We measured the major axis V and velocity dispersion radial profiles for both gas and stars, and the h_3 and h_4 radial profiles of the stars. We also derived from the R-band surface photometry of each galaxy the light contribution of their
Abstract. What we look for in an image is scale-dependent. Multiresolution allows for image analy... more Abstract. What we look for in an image is scale-dependent. Multiresolution allows for image analysis in terms of different scales. Scalespace filtering, quadtrees, pyramid representations, and the wavelet transform have all been used to yield multi-resolution views of an image. One
Presence of recent star formation in a number of nearby early-type galaxies (ETGs), has been reve... more Presence of recent star formation in a number of nearby early-type galaxies (ETGs), has been revealed both by morphological distortions, and by spectral "anomalies" such as relatively stronger Hydrogen absorption features. The latter are particularly relevant for the dating of these galaxies because even minor rejuvenation events can significantly alter the derived average age of the stellar populations. In order
Deep imaging and long-slit spectroscopy was obtained for a sample of dwarf ellipticals in the For... more Deep imaging and long-slit spectroscopy was obtained for a sample of dwarf ellipticals in the Fornax cluster, NGC 5044 and NGC 5898 groups using the ESO VLT. The observational data extend out to typically 1.5 2 effective radii and indicate a kinematic dichotomy in the family of ellipticals. The observed stellar kinematics indicate a luminosity velocity dispersion relation largely supporting
Abstract. We present deep Hα+[NII] narrowband imaging of FCC046 and FCC207, two dwarf ellipticals... more Abstract. We present deep Hα+[NII] narrowband imaging of FCC046 and FCC207, two dwarf ellipticals (dEs) in the Fornax Cluster. Although one does not expect much of an interstellar medium (ISM) to be present in dEs, FCC207 shows a central emission region, whereas FCC046 ...
We present a comparison between ionized gas and stellar kinematics for a sample of 5 early-to-int... more We present a comparison between ionized gas and stellar kinematics for a sample of 5 early-to-intermediate disk galaxies. We measured the major axis V and velocity dispersion radial profiles for both gas and stars, and the h_3 and h_4 radial profiles of the stars. We also derived from the R-band surface photometry of each galaxy the light contribution of their
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