부산대학교 도서관

In this paper, we present the structural properties and morphology of galaxies in the central region of the Coma Cluster brighter than 19.5 mag in the F 814 W band from the HST /ACS Coma Cluster Treasury Survey. Using mainly spectroscopic redshifts, we find 132 members from our sample of 219 galaxies. In our sample of 132 members, we find 51 non-dwarfs and 81 dwarfs, and amongst our 32 non-members, we find 4 dwarfs and 28 non-dwarfs. We do not have redshifts for the remaining 55 galaxies. We present bulge–disc decomposition of the sample using galfit and obtain parameters for our sample. Using visual inspection of residuals, we do a morphological classification of the galaxies. We studied the relation of morphological types with Bulge to Total Light Ratio (B / T), colour–magnitude relation (CMR), Sérsic index (n), Kormendy relation, and cross-correlations between these parameters for the bulges and galaxies. This work helps us understand important relations between various parameters like B / T , colour, and n as well as insights into the merger history of these galaxies in terms of their positions in the Kormendy Diagram and their Sérsic indices. We find that there are significantly more E/SO, SOs galaxies in the member population compared to non-members. [ABSTRACT FROM AUTHOR]