19 papers
Five-Dimensional Traversable Wormholes in Einstein-Gauss-Bonnet Gravity with a Cloud of Strings
Jaydeep Goswami, Umananda Dev Goswami
We present an exact static and spherically symmetric traversable wormhole solution in 5D Einstein-Gauss-Bonnet (EGB) gravity supported by a Letelier cloud of strings. The physicall…
A systematic comparison of green valley selection criteria across multiparameter spaces using a homogeneous ultraviolet-optical dataset
Pius Privatus, Umananda Dev Goswami
We present a systematic comparison of commonly adopted green valley (GV) selection criteria by examining their distributions across multiple observational and physical parameter sp…
Perturbative Renormalisation Group Improved Black Hole Solution and its Quasinormal Modes
Rupam Jyoti Borah, Umananda Dev Goswami
In this work, we construct a perturbative black hole (BH) solution motivated by renormalization group (RG) improvement and investigate the quasinormal modes (QNMs) of the BH under…
Strong field lensing and shadows of gravity black holes
Rahul Das, Umananda Dev Goswami
We investigate the strong field lensing of light by black holes (BHs)emerging in theory of gravity, which is an extension of gravity theory by including…
Probing CDM-mimicking gravity model using gravitational waves from compact binary coalescences
Sikha Gogoi, Umananda Dev Goswami
The direct detection of gravitational waves (GWs) is a very significant achievement in the history of physics and has opened a new window to probe the possible deviations of physic…
Traversable wormholes in gravity: Energy conditions, stability and quasinormal modes
Jaydeep Goswami, Rupam Jyoti Borah, Umananda Dev Goswami
We investigate static and spherically symmetric traversable wormhole solutions in the framework of gravity by considering a power-law model of the form . By a…