Rahul Kumar

Rahul Kumar is a Fulbright Postdoctoral Researcher at the University of Arizona, conducting cutting-edge research in theoretical astrophysics and gravitational physics. His work focuses on testing gravity theories through observations of black holes using the Event Horizon Telescope (EHT), particularly examining photon ring observables, spacetime measurements, and horizon-scale phenomena.

Key research interests include black hole shadows, gravitational lensing effects, modified gravity theories (Einstein-Gauss-Bonnet, Horndeski, Rastall), and quantum gravity signatures in astrophysical observations. His studies explore how spacetime structures influence observable phenomena like accretion dynamics and electromagnetic radiation patterns.

Recent work analyzes rotating black holes in higher-dimensional and nonlinear frameworks, with a focus on distinguishing between general relativity and alternative theories through EHT data from Sagittarius A* and M87. His articles consistently address the interplay between black hole geometry, horizon properties, and observational constraints from cutting-edge telescopic data.

No scientific awards are listed, but his contributions to black hole physics have advanced understanding of regular metrics, horizonless solutions, and quantum gravity phenomenology. Current research extends into parameter estimation techniques and gravitational lensing analysis for non-vacuum spacetime models.