Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published October 13, 1986 | Published
Book Section - Chapter Open

Enhancement Of Features In Galaxy Images

Abstract

I describe and compare several image enhancement techniques, useful for morphological analysis of galaxian (or cometary) images. Such techniques can be used to search for, and investigate the properties of dust lanes, stellar disks or rings, jets, shells, tidal distortions, etc. Applications of the techniques are illustrated on CCD images of the peculiar galaxy Arp 230; this object has a rich morphology, indicative of a merger of two disk galaxies.

Additional Information

© 1986 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was completed during my stay at the Astronomy Department, University of California at Berkeley, whose hospitality and stimulative atmosphere I gratefully acknowledge. The data on Arp 230 were obtained in collaboration with Ivan King, whose NASA contract NAS5-28086 financed the computing. The data were obtained at the Cero Tololo Interamerican Observatory, which is operated by Aura, Inc., under a contract with the NSF. I thank Patricio Ugarte for assistance at the telescope, and Carl Vuosalo and Abe Oren for help with CCD data processing. The elliptical galaxy modeling routine was written by Tod Lauer. I acknowledge a partial support from the Harvard College Observatory, and the Society of Fellows, Harvard University.

Attached Files

Published - 674.pdf

Files

674.pdf
Files (14.0 MB)
Name Size Download all
md5:c8cd9411e44001699ff6b0a22ad5c8fd
14.0 MB Preview Download

Additional details

Created:
August 19, 2023
Modified:
January 14, 2024