Two confirmed compact elliptical galaxies in the Antlia cluster

Details Two confirmed compact elliptical galaxies in the Antlia cluster Two confirmed compact elliptical galaxies in the Antlia cluster

2010-02-19

arxiv.org/abs/1002.3830v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 2 figures, accepted for publication in 52 BAAA

Scientific paper

We confirm the existence of two compact elliptical (cE) galaxies in the central region of the Antlia cluster through MAGELLAN-MIKE and GEMINI-GMOS spectra. Only about a dozen galaxies of this rare type are known today up to a distance of 100 Mpc. With this finding, Antlia becomes the nearest galaxy cluster harbouring more than one cE galaxy among its galaxy population. One of these galaxies shows evidence of interaction with one of the giant ellipticals that dominate the central region of the cluster.

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