Subarcsec optical and radio obsercations of the gravitationally lensed systmen B1422 + 23.1

Abstract

Optical observations of the multiple-component gravitational lens candidate B1422+23.1 using the 2.5m Nordic Optical Telescope and a MERLIN image at 1658 MHz are presented. The radio image at L-band and B, V, R and I band images with a 0.6 arcsec seeing resolve the components. These observations show that the brightness ratio of the components at optical bands is similar to those at radio bands. This strengthens the case for a gravitational lens hypothesis for the source.

Keywords: keyword; Gravitational lensing quasar, radio map, optical image

Nigerian Journal of Physics Vol. 18 (2) 2006: pp. 191-196