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Metallicity Gradients - Mass Dependency in Dwarf Elliptical Galaxies
M. Koleva, Ph. Prugniel, S. De Rijcke +2
The formation and evolution of galaxies is imprinted on their stellar population radial gradients. Two recent articles present conflicting results concerning the mass dependence of…
Smooth, undisturbed dwarf spheroidal galaxies in the Perseus Cluster core: Implications for dark matter content
Samantha J. Penny, Christopher J. Conselice, Sven De Rijcke +1
Using deep HST/ACS observations of the core of the Perseus Cluster, we identify a large population of dwarf elliptical galaxies down to M_V = -12. All these dwarfs are remarkably s…
Non-parametric strong lens inversion of SDSS J1004+4112
J. Liesenborgs, S. De Rijcke, H. Dejonghe +1
In this article we study the well-known strong lensing system SDSS J1004+4112. Not only does it host a large-separation lensed quasar with measured time-delay information, but seve…
Formation and Evolution of Dwarf Elliptical Galaxies - II. Spatially resolved star-formation histories
Mina Koleva, Sven De Rijcke, Philippe Prugniel +2
We present optical VLT spectroscopy of 16 dwarf elliptical galaxies (or dEs) comparable in mass to NGC 205, and belonging to the Fornax cluster and to nearby groups of galaxies. Us…
Internal Kinematics and Stellar Populations of the Poststarburst+AGN Galaxy SDSS J230743.41+152558.4
I. Chilingarian, S. De Rijcke, P. Buyle
We present the first 3D spectroscopic observations of a nearby HI detected poststarburst, or E+A, galaxy, SDSS J230743.41+152558.4, obtained with the VIMOS IFU spectrograph at ESO…