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Cluster Galaxies Die Hard
Simone M. Weinmann, Guinevere Kauffmann, Anja von der Linden +1
We investigate how the specific star formation rates of galaxies of different masses depend on cluster-centric radius and on the central/satellite dichotomy in both field and clust…
The Degeneracy of Galaxy Formation Models
Eyal Neistein, Simone M. Weinmann
We develop a new formalism for modeling the formation and evolution of galaxies within a hierarchical universe. Similarly to standard semi-analytical models we trace galaxies insid…
The First Generation of Virgo Cluster Dwarf Elliptical Galaxies?
T. Lisker, J. Janz, G. Hensler +7
In the light of the question whether most early-type dwarf (dE) galaxies in clusters formed through infall and transformation of late-type progenitors, we search for an imprint of…
Star formation and AGN activity in SDSS cluster galaxies
Anja von der Linden, Vivienne Wild, Guinevere Kauffmann +2
We investigate the recent and current star formation activity of galaxies as function of distance from the cluster center in a sample of 521 SDSS clusters at z<0.1. We show that wh…
Structural Properties of Central Galaxies in Groups and Clusters
Yicheng Guo, Daniel H. McIntosh, H. J. Mo +6
Using a representative sample of 911 central galaxies (CENs) from the SDSS DR4 group catalogue, we study how the structure of the most massive members in groups and clusters depend…