Abstract
view Abstract Citations (53) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Another possible case of a gravitational lens Paczynski, B. ; Gorski, K. Abstract A cluster of three quasars at redshift 2.05 discovered by Burbidge et al. (1980) may be a triple image of a single quasar produced by two spherical clusters of galaxies acting as a gravitational lens. The core radii and velocity dispersions required for the clusters by our model are not unreasonable, but a positive cosmological constant would bring the velocity dispersion within clusters down, closer to that commonly observed. If the clusters were discovered and their redshifts and velocity dispersions were measured, then an estimate of the cosmological constant could be made. Publication: The Astrophysical Journal Pub Date: September 1981 DOI: 10.1086/183634 Bibcode: 1981ApJ...248L.101P Keywords: Astronomical Models; Cosmology; Galactic Clusters; Gravitational Lenses; Quasars; Point Sources; Radial Velocity; Red Shift; Velocity Distribution; Astrophysics full text sources ADS |
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