Self-lensing of a singular isothermal sphere

June 2000 • 2000PhRvD..61l3002W

Authors • Wang, Yun

Abstract • Many astrophysical systems can be approximated as isothermal spheres. In an isothermal sphere, the ``foreground'' objects can act as lenses on ``background'' objects in the same distribution. We study gravitational lensing by a singular isothermal sphere analytically. Our results may have interesting applications.