One form of this behavior gives a tangential effect equal to the mean ratio of dimensionless surface density minus the same ratio and was first observed in 2000 in four correlated ellipticities.
One form of this behavior gives a tangential effect equal to the mean ratio of dimensionless surface density minus the same ratio and was first observed in 2000 in four correlated ellipticities. This process can ne used to construct a parameter-free projected distribution via a Kaiser-Squires inversion. Shear and stretching due to this behavior produce effects known as (*) arclets. A version of this effect is being used to search for compact dark matter and massive compact halo objects and is referred to by the prefix micro-. One object exhibiting this effect is a quasar in the constellation Pegasus; the fourfold symmetry of the image of that object has led to its nickname, Einstein's Cross. This effect was first measured by Eddington during a solar eclipse. For 10 points, name general relativistic effect in which massive objects bend the trajectory of light.
One form of this behavior gives a tangential effect equal to the mean ratio of dimensionless surface density minus the same ratio and was first observed in 2000 in four correlated ellipticities.
{gravitational} {lens}ing [prompt on {lens}ing]