Sreekanth Harikumar
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Microlensing of long-duration gravitational wave signals originating from Galactic sources Open
Detection of quasi-monochromatic, long-duration (continuous) gravitational wave radiation emitted by, e.g., asymmetric rotating neutron stars in our Galaxy requires a long observation time to distinguish it from the detector's noise. If th…
View article: Investigating the redshift evolution of lensing galaxy density slopes via model-independent distance ratios
Investigating the redshift evolution of lensing galaxy density slopes via model-independent distance ratios Open
Context. Strong-lensing systems are expected to be discovered in great numbers by next-generation surveys. They provide a powerful tool for studying cosmology and the galaxy evolution. The coupling of the galaxy structure and cosmology thr…
View article: Investigating the Redshift Evolution of Lensing Galaxy Density Slopes via Model-Independent Distance Ratios
Investigating the Redshift Evolution of Lensing Galaxy Density Slopes via Model-Independent Distance Ratios Open
Strong lensing systems, expected to be abundantly discovered by next-generation surveys, offer a powerful tool for studying cosmology and galaxy evolution. The connection between galaxy structure and cosmology through distance ratios highl…
Probing massive gravitons in f(R) with lensed gravitational waves Open
We investigate the novel features of gravitational wave solutions in f(R) gravity under proper gauge considerations in the shifted Ricci scalar background curvature (R1+ϵ). The solution is further explored to study the modified dispersion …
Propagation and lensing of gravitational waves in Palatini $f(\hat R)$ gravity Open
Accelerated expansion of the Universe prompted searches of modified gravity theory beyond general relativity, instead of adding a mysterious dark energy component with exotic physical properties. One such alternative gravity approach is me…
Probing massive gravitons in $f(R)$ with lensed gravitational waves Open
We investigate the novel features of gravitational wave solutions in $f(R)$ gravity under proper gauge considerations in the shifted Ricci scalar background curvature ($R^{1+ε}$). The solution is further explored to study the modified disp…
Moffat MOdified Gravity (MOG) Open
Scalar Tensor Vector Gravity (STVG) or MOdified Gravity (MOG) is a metric theory of gravity with dynamical scalar fields and a massive vector field introduced in addition to the metric tensor. In the weak field approximation, MOG modifies …
Gravitational Lensing of Continuous Gravitational Waves Open
Continuous gravitational waves are analogous to monochromatic light and could therefore be used to detect wave effects such as interference or diffraction. This would be possible with strongly lensed gravitational waves. This article revie…