Galaxy populations in the Antlia cluster – I. Photometric properties of early-type galaxies★

  title={Galaxy populations in the Antlia cluster – I. Photometric properties of early-type galaxies★},
  author={Anal'ia V. Smith Castelli and L. P. Bassino and T. Richtler and Sergio A. Cellone and Caterina Aruta and Leopoldo Infante},
  journal={Monthly Notices of the Royal Astronomical Society},
We present the first colour‐magnitude relation (CMR) of early-type galaxies in the central region of the Antlia cluster, obtained from CCD wide-field photometry in the Washington photometric system. Integrated (C − T1) colours, T1 magnitudes, and effective radii have been measured for 93 galaxies (i.e. the largest galaxies sample in the Washington system till now) from the FS90 Antlia Group catalogue. Membership of 37 objects can be confirmed through new radial velocities and data collected… 

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