292 citations · 867 across the 11 of their papers we have counts for
Showing 2002Show all
2 papers · 1 filter
astro-ph2002★ 97 cited
Time delay and lens redshift for the doubly imaged BAL quasar SBS1520+530
I. Burud, J. Hjorth, F. Courbin +6
We present optical R-band light curves of the gravitationally lensed quasar SBS1520+530 derived from data obtained at the Nordic Optical Telescope. A time delay of 130+/-3 days (1…
astro-ph2002★ 70 cited
The time delay of the quadruple quasar RX J0911.4+0551
Jens Hjorth, Ingunn Burud, Andreas O. Jaunsen +9
We present optical lightcurves of the gravitationally lensed components A (=A1+A2+A3) and B of the quadruple quasar RX J0911.4+0551 (z = 2.80). The observations were primarily obta…