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Evolution of the galaxy luminosity function in progenitors of fossil groups
G. Gozaliasl, H. G. Khosroshahi, A. A. Dariush +3
Using the semi-analytic models based on the Millennium simulation, we trace back the evolution of the luminosity function of galaxies residing in progenitors of groups classified b…
Optically selected fossil groups; X-ray observations and galaxy properties
Habib G. Khosroshahi, Ghassem Gozaliasl, Jesper Rasmussen +4
We report on the X-ray and optical observations of galaxy groups selected from the 2dfGRS group catalog, to explore the possibility that galaxy groups hosting a giant elliptical ga…
Mining the gap: evolution of the magnitude gap in X-ray galaxy groups from the 3 square degree XMM coverage of CFHTLS
G. Gozaliasl, A. Finoguenov, H. G. Khosroshahi +15
We present a catalog of 129 X-ray galaxy groups, covering a redshift range 0.04<z<1.23, selected in the ~3 square degree part of the CFHTLS W1 field overlapping XMM observations pe…