3 papers
gr-qc2025
Strong Lensing Effect and Quasinormal Modes of Oscillations of Black Holes in Gravity Theory
Gayatri Mohan, Ronit Karmakar, Rupam Jyoti Borah +1
In this work, we analyze the strong lensing phenomenon and quasinormal modes (QNMs) in the case of black holes (BHs) surrounded by fluids within the framework of gravity,…
gr-qc2025
Investigating the effects of gravitational lensing by Hu-Sawicki gravity black holes
Gayatri Mohan, Nashiba Parbin, Umananda Dev Goswami
In this work, gravitational lensing in the weak and strong field limits is investigated for black hole spacetime within the framework of Hu-Sawicki gravity. We employ the Is…
gr-qc2024
Galactic dynamics in the presence of scalaron: A perspective from gravity
Gayatri Mohan, Umananda Dev Goswami
We consider modified gravity theory incorporating the chameleon mechanism to address galactic dynamics. By employing the metric formalism and utilizing a conformal transform…