CaltechAUTHORS
Published 1990 | Version public
Book Section - Chapter Metadata-only

Optical and X-Ray Properties of Elliptical Galaxies

Creators

  • 1. ROR icon California Institute of Technology

Contributors

Abstract

We compare and correlate the x-ray properties of early-type galaxies with their optical properties, using the data from extensive, homogeneous optical photometry surveys. Bivariate scaling solutions are found for the x-ray luminosities in terms of the optical surface brightness and velocity dispersion. A new quantity, the anisotropy index (AI) is defined. X-ray luminosities are found to correlate well with the AI. This is tentatively interpreted as a suggestion that mergers and tidal interactions played an important role in generation of the x-ray coronae in elliptical galaxies.

Additional Information

© 1990 Kluwer Academic Publishers. This work was supported in part by California Institute of Technology, NASA HEAO-B Data Analysis Program, and a fellowship from the Alfred P. Sloan Foundation to SD. RdC is on leave from Observatorio Nacional, CNPq, Rio de Janeiro, Brasil. SD would like to thank to the A.A.S. for a travel grant.

Additional details

Identifiers

Eprint ID
97515
Resolver ID
CaltechAUTHORS:20190730-102943527

Funding

Caltech
NASA
Alfred P. Sloan Foundation
American Astronomical Society

Dates

Created
2019-08-01
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field

Caltech Custom Metadata

Series Name
Astrophysics and Space Science Library
Series Volume or Issue Number
160