[ITAL]Hubble Space Telescope[/ITAL] Observations of the Gravitational Lens System B1422+231
The Astrophysical Journal1996Vol. 462(2)
Citations Over TimeTop 10% of 1996 papers
Abstract
Hubble Space Telescope observations of the gravitational lens system B1422+231 are presented. The spectra of the four components are virtually identical, although there are differences among the Lyα emission-line equivalent widths that might be due to microlensing. There are also significant differences between the component flux density ratios measured at radio and optical wavelengths. High-resolution imaging reveals the lens close to the faintest quasar image. The lens has photometric properties consistent with an elliptical galaxy at z ~ 0.4. The addition of new constraints to simple lensing models affirms the B1422+231 system as a suitable tool for an eventual direct measure of the Hubble constant.
Related Papers
- The Optical Gravitational Lensing Experiment. The Optical Depth to Gravitational Microlensing in the Direction of the Galactic Bulge(1994)
- → Microlensing-induced absorption-line variability(2003)9 cited
- → Microlensing in the Lensed Quasar UM 425?(1996)
- → Microlensing in the lensed quasar UM 425?(1996)