Gravitational Lensing by a Dark Compact Object in Modified Gravity

dc.contributor.author	Rehman, Nagina
dc.date.accessioned	2025-01-06T05:56:31Z
dc.date.available	2025-01-06T05:56:31Z
dc.date.issued	2024-12-17
dc.identifier.other	403037
dc.identifier.uri	http://10.250.8.41:8080/xmlui/handle/123456789/48795
dc.description	MS-Mathematics Thesis 2024	en_US
dc.description.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. XI	en_US
dc.description.sponsorship	Dr. Mubasher Jamil	en_US
dc.language.iso	en	en_US
dc.publisher	National University of Science and Technology NUST H-12 Islamabad	en_US
dc.title	Gravitational Lensing by a Dark Compact Object in Modified Gravity	en_US
dc.type	Thesis	en_US