Cosmological constant and time delay
arXiv:0801.3776 · doi:10.1051/0004-6361:200809449
Abstract
The effect of the cosmological constant on the time delay caused by an isolated spherical mass is calculated without using the lens equation and compared to a recent observational bound on the time delay of the lensed quasar SDSS J1004+4112.
8 pages, 1 figure