Astrophysics General Relativity
Einstein Ring
Definition
Perfect circular distortion background starlight created gravitational lensing massive foreground object aligning light source observer
Related Evidence (2)
observation Gravitational lensing observed massive galaxy clusters bending background galaxy light into ring formations quadrillion times solar mass concentration Einstein rings
observation Gravitational lensing effect measured by mass concentration in clusters bending light creating Einstein rings observed astrophysically with plasma refractive index demonstrating opposite sign effect with frequency dependent variations verified by astrophysical observations of radio pulsars and sources showing dispersion effects