J.R. Allington-Smith
The evolution of galaxies in radio-selected groups
Allington-Smith, J.R.; Ellis, R.; Zirbel, E.L.; Oemler, A. Jr
Authors
R. Ellis
E.L. Zirbel
A. Jr Oemler
Abstract
The evolution of galaxies in small groups is studied in a way unbiased by selection effects, on the basis of observations of the populations of galaxies around a sample of 98 strong radio galaxies, 65 with redshifts less than 0.25, and 33 with redshifts between 0.25 and 0.50. The properties of galaxies with M(V) not greater than -19.0 within 0.5 Mpc of the radio galaxies are analyzed. Strong radio galaxies are found to occur in groups whose range of richness is broad, but not as broad as that of groups in general. There has been a slight decrease in the richness of radio groups since the epoch observed at z of 0.4, particularly among the FR II sources. The luminosity function of the members of both high- and low-redshift radio groups is indistinguishable from that of nearby field galaxies. It is concluded that galaxies in groups containing radio galaxies are typical of group members in general and are a good probe of the properties of normal galaxies. It is suggested that the morphology-environment relation is of recent origin and is steepening rapidly with time.
Citation
Allington-Smith, J., Ellis, R., Zirbel, E., & Oemler, A. J. (1993). The evolution of galaxies in radio-selected groups. Astrophysical Journal, 404(2), 521-538. https://doi.org/10.1086/172305
Journal Article Type | Article |
---|---|
Publication Date | 1993-02 |
Deposit Date | Feb 21, 2008 |
Publicly Available Date | Aug 12, 2014 |
Journal | Astrophysical Journal |
Print ISSN | 0004-637X |
Electronic ISSN | 1538-4357 |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 404 |
Issue | 2 |
Pages | 521-538 |
DOI | https://doi.org/10.1086/172305 |
Keywords | Galactic evolution, Radio galaxies, Astronomical photometry, Red shift. |
Files
Published Journal Article
(371 Kb)
PDF
Copyright Statement
© 1993. The American Astronomical Society. All rights reserved.
You might also like
Efficient photonic reformatting of celestial light for diffraction-limited spectroscopy
(2016)
Journal Article
Applications of Integrated Photonic Spectrographs in astronomy
(2013)
Journal Article
Simulation of complex phenomena in optical fibres
(2012)
Journal Article
Modal noise prediction in fibre spectroscopy - I. Visibility and the coherent model.
(2011)
Journal Article
The dependence of the properties of optical fibres on length
(2010)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search