Abstract Details

Name: Nagamani Poloji
Affiliation: Osmania university
Conference ID: ASI2020_312
Title : Disk evolution of classical and pseudobulges in S0 galaxies in core of Coma Cluster
Authors and Co-Authors : Nagamani.poloji(Department of Astronomy, Osmania University, Hyderabad), Priya Hasan(Department of Physics, Manuu, Hyderabad), S.N.Hasan(Department of Mathematics, Manuu, Hyderabad).
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : In this paper, we present the study of classical and pseudobulge in lenticular galaxies in the central region of the Coma cluster using the HST/ACS Coma cluster treasury survey data. Our sample has 221 objects within the magnitude limit m<19.5. We obtain structural parameters of galaxies using (Galfit) bulge-disk decomposition. We have derived the morphological type using B/T, sersic index and visual inspection of residuals. In our sample, we have 50 S0 galaxies and we classify the bulges into classical and pseudobulge using sersic index and Kormandy diagram. We find 36 classical and 14 pseudobulges in the sample. We observe that most of the pseudobulge occurs in fainter magnitude. We present the bulge and disk parameters and find and compare the correlation of re, rs and surface brightness of disks of the galaxies. We observe that disks of the pseudobulge galaxies have fainter surface brightness and smaller-scale length compared to the classical bulge galaxies and could be linked to their formation process itself.