3 papers
astro-ph1999
Disk and Bulge Morphology of WFPC2 galaxies: The HST Medium Deep Survey database
Kavan U. Ratnatunga, Richard E. Griffiths, Eric J. Ostrander
Quantitative morphological and structural parameters are estimated for galaxies detected in HST observations of WFPC2 survey fields. A modeling approach based on maximum likelihood…
astro-ph1997
Galaxy Morphology Without Classification: Self Organising Maps
A. Naim, K. U. Ratnatunga, R. E. Griffiths
We examine a general framework for visualizing datasets of high (> 2) dimensionality, and demonstrate it using the morphology of galaxies at moderate redshifts. The distributions o…
astro-ph1996
Evidence for Galaxy Interactions/Mergers from Meduim-Deep Survey WFPC2 Data
L. W. Neuschaefer, M. Im, K. U. Ratnatunga +2
We examine the morphological and statistical properties of close galaxy pairs from two sets of 28 WFPC2 fields, acquired for the Medium Deep Survey (MDS) and the Groth/Westphal Sur…