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FRIIb Radio Galaxies, Cosmology, and Quintessence

Published online by Cambridge University Press:  26 May 2016

Ruth A. Daly  and
Erick J. Guerra
Ruth A. Daly
Affiliation:
Pennsylvania State University, Department of Physics, P. 0. Box 7009, Reading, PA 19610-6009, USA
Erick J. Guerra
Affiliation:
Rowan University, Department of Chemistry and Physics, 201 Mullica Hill Road, Glassboro, NJ 08028, USA

Abstract

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FRIIb radio galaxies can be used as modified standard yardsticks to determine global cosmological parameters; the method is analogous to the use of supernovae type Ia as modified standard candles. FRIIb radio galaxies are observed to very high-redshift; the sources discussed here are fairly evenly distributed in redshift, with redshifts between zero and two. The sources can be used to determine the coordinate distance to high-redshift sources, and thus can constrain global cosmological parameters (just like the use of supernova type Ia to determine the coordinate distance, or luminosity distance, to high-redshift sources). Current constraints on global cosmological parameters and on quintessence obtained using FRIIb radio galaxies are presented.

Type
Part VII: Evidence for non-zero A
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 264 - 267
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

Bludman, S. & Roos, M. 2000, Astro-Ph/0004328.Google Scholar
Daly, R. A. 1994, ApJ, 426, 38.CrossRefGoogle Scholar
Daly, R. A. 1995, ApJ, 454, 580.Google Scholar
Fanaroff, B. L. & Riley, J. M. 1974, MNRAS, 167, 31p.Google Scholar
Guerra, E. J. 1997, PhD Thesis, Princeton University.Google Scholar
Guerra, E. J. & Daly, R. A. 1998, ApJ, 493, 536.Google Scholar
Guerra, E. J., Daly, R. A. & Wan, L. 2000, ApJ, 544, in press (GDW00).Google Scholar
Helbig, P. 2000, these proceedings, 245.Google Scholar
Maor, I, Brustein, R. & Steinhardt, P. J. 2000, Astro-Ph/0007297.Google Scholar
Peebles, P. J. E. 1993, Principles of Physical Cosmology, Princeton University Press.Google Scholar
Schechter, P. 2000, these proceedings, 209.Google Scholar
Wang, L., Caldwell, R. R., Ostriker, J. P. & Steinhardt, P. J. 2000, ApJ, 530, 17.Google Scholar
Wellman, G. F. 1997, Ph.D. Thesis, Princeton University.Google Scholar
Wellman, G. F., Daly, R. A. & Wan, L. 1997, ApJ, 480, 79.Google Scholar