129 citations · 1.8k across the 47 of their papers we have counts for
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A near-infrared census of the multi-component stellar structure of early-type dwarf galaxies in the Virgo cluster
J. Janz, E. Laurikainen, T. Lisker +12
The fraction of star-forming to quiescent dwarf galaxies varies from almost infinity in the field to zero in the centers of rich galaxy clusters. What is causing this pronounced mo…
Dwarf galaxy populations in present-day galaxy clusters - II. The history of early-type and late-type dwarfs
Thorsten Lisker, Simone M. Weinmann, Joachim Janz +1
How did the dwarf galaxy population of present-day galaxy clusters form and grow over time? We address this question by analysing the history of dark matter subhaloes in the Millen…
LEDA 074886: A remarkable rectangular-looking galaxy
Alister W. Graham, Lee R. Spitler, Duncan A. Forbes +3
We report the discovery of an interesting and rare, rectangular-shaped galaxy. At a distance of 21 Mpc, the dwarf galaxy LEDA 074886 has an absolute R-band magnitude of -17.3 mag.…
Dwarf galaxy populations in present-day galaxy clusters: I. Abundances and red fractions
Simone M. Weinmann, Thorsten Lisker, Qi Guo +2
We compare the galaxy population in the Virgo, Fornax, Coma and Perseus cluster to a state-of-the-art semi-analytic model, focusing on the regime of dwarf galaxies with luminositie…
Nuclei of early-type dwarf galaxies: are they progenitors of UCDs?
S. Paudel, T. Lisker, J. Janz
To address the question of whether the so-called ultra compact dwarf galaxies (UCDs) are the remnant nuclei of destroyed early-type dwarf galaxies (dEs), we analyze the stellar pop…
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…
A continuum of structure and stellar content from Virgo cluster early-type dwarfs to giants?
Joachim Janz, Thorsten Lisker
Based on the wealth of multiwavelength imaging data from the SDSS, we investigate whether dwarf and giant early-type galaxies in the Virgo cluster follow a continuum in their struc…
On the Color Magnitude Relation of Early-type Galaxies
Joachim Janz, Thorsten Lisker
In this letter we present a study of the color magnitude relation of 468 early-type galaxies in the Virgo Cluster with Sloan Digital Sky Survey imaging data. The analysis of our ho…