A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at
  redshift z $\sim$ 0.4
  The well-known cluster of galaxies ZwCl0024+1652 at z $\sim$ 0.4, lacks an
in-depth morphological classification of its central region. While previous
studies provide a visual classification of a patched area, we used the public
code called galaxy Support Vector Machine (galSVM) and HST/ACS data as well as
WFP2 master catalogue to automatically classify all cluster members up to 1
Mpc. galSVM analyses galaxy morphologies through Support Vector Machine (SVM).
From the 231 cluster galaxies, we classified 97 as early-types (ET) and 83 as
late-types (LT). The remaining 51 stayed unclassified (or undecided, UD). By
cross-matching our results with the existing visual classification, we found an
agreement of 81%. In addition to previous Zwcl0024 morphological
classifications, 121 of our galaxies were classified for the first time in this
work. In addition, we tested the location of classified galaxies on the
standard morphological diagrams, colour-colour and colour-magnitude diagrams.
Out of all cluster members, $\sim$20% are emission line galaxies (ELG), taking
into account previous GLACE results. We have verified that the ET fraction is
slightly higher near the cluster core and decreases with the clustercentric
distance, while the opposite trend has been observed for LT galaxies. We found
higher fraction of ET (54%) than LT (46%) throughout the analysed central
region, as expected. In addition, we analysed the correlation between the five
morphological parameters (Abraham concentration, Bershady-Concelice
concentration, Asymmetry, Gini and M20 moment of light) and clustercentric
distance, without finding a clear trend. Finally, as a result of our work, the
morphological catalogue of 231 galaxies containing all the measured parameters
and the final classification is available in the electronic form of this paper.
