Dwarf galaxies in the Antlia Cluster: First results

SMITH-CASTELLI, A. V.; BASSINO, L. P.; CELLONE, S. A.; RICHTLER, T.; DIRSCH, B.; INFANTE, L.; ARUTA, C.; GÓMEZ, M.

Santiago, Chile

Workshop; 2005 ESO Workshop: "Groups of galaxies in the nearby Universe"; 2005

European Southern Observatory

We present the first results of a project aimed to study the galaxy population of the Antlia cluster, the third nearest galaxy cluster after Virgo and Fornax. The observations for the Antlia project consist of Washington wide-field images taken with the MOSAIC camera mounted at the prime focus of the CTIO 4-m Blanco telescope. Our preliminary results correspond to the identification and classification of dwarf galaxies in the central cluster region, extending the list of Ferguson & Sandage (1990). The final aim of our project is to study the luminosity function, morphology and structural parameters of dwarf galaxies in the Antlia cluster with a more complete sample.