Abstract:
This study investigates gravitational lensing in modified gravity theories,
focusing on the lensing phenomenon in strong and weak gravitational fields.
We derive the weak bending angle of light using modified gravity spacetimes,
highlighting deviations from standard General Relativity. We analyze image
formation and magnification for strong lensing, incorporating modified gravity
effects into the lens equations. We calculate key parameters such as the
angular radius of Einstein rings, the time delays and magnification ratios.
Our findings indicate distinct observational signatures in modified gravity
models, providing valuable insights for distinguishing these theories through
gravitational lensing observations.
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