Comments on the Gravitational lensing Magnification
Astronomical Institute, Tohoku University
Progress of theoretical physics = Progress of theoretical physics,
arxiv: Astrophysics::Cosmology and Extragalactic Astrophysics
We rederive a relation between gravitational lensing magnification relative to the standard Friedmann distance and one relative to the Dyer-Roeder distance by investigating the null geodesic deviation equation. We show that the relation comes from a natural consequence ...