Dwarf galaxies in Hickson Compact Groups

Dominik Bomans; Elvira Krusch; Ralf-Juergen Dettmar; Volker Mueller; Chris Taylor

doi:10.1007/978-3-540-71173-5_26

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arXiv · astro-ph/0608147

Dwarf galaxies in Hickson Compact Groups

Dominik Bomans·Elvira Krusch·Ralf-Juergen Dettmar·Volker Mueller·Chris Taylor

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Abstract

We observed 5 Hickson Compact Groups with the ESO/MPI 2.2m telescope and WFI to investigate the dwarf galaxy content and distribution in these galaxy groups. Our deep imaging and careful selection of the candidate galaxies revealed a rich population of mainly passively evolving dwarf galaxies, which is spatially much more extended than the originally defined Hickson Compact groups. The composite luminosity function of the 5 groups shows a bimodal structure with a very steep rise in the low luminosity regime. The faint end slope is close to the predictions of CDM theory for the slope of the Dark Matter halo mass function.

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Dominik Bomans, Elvira Krusch, Ralf-Juergen Dettmar, Volker Mueller, Chris Taylor. 2006-08-07. Dwarf galaxies in Hickson Compact Groups. https://doi.org/10.1007/978-3-540-71173-5_26

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