Another possible case of a gravitational lens
Journal Article
·
· Astrophys. J., Lett. Ed.; (United States)
A cluster of three quasars at redshift 2.05 discovered by Burbidge et al. 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.
- Research Organization:
- Princeton University Observatory and N. Copernicus Astronomical Center
- OSTI ID:
- 6115066
- Journal Information:
- Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 248:3; ISSN AJLEA
- Country of Publication:
- United States
- Language:
- English