240 citations · 2.6k across the 67 of their papers we have counts for
5 papers · 1 filter
Running gravitational constant induced dark energy as a solution to tension
Tilek Zhumabek, Azamat Mukhamediya, Hrishikesh Chakrabarty +1
We consider a modified gravity model with a running gravitational constant coupled to a varying dark energy fluid and test its imprint on the growth of structure in the universe. U…
Intermediate mass ratio inspirals in dark matter halos
Darkhan Shadykul, Hrishikesh Chakrabarty, Daniele Malafarina
We study eccentric equatorial orbits of a stellar-mass black hole around an intermediate-mass slowly rotating Kerr black hole in the presence of gravitational radiation and a dark…
Gravitational lensing of neutrinos in the Rezzolla-Zhidenko spacetime
Mirzabek Alloqulov, Hrishikesh Chakrabarty, Daniele Malafarina +2
We consider gravitational lensing of neutrinos in the Rezzolla-Zhidenko spacetime in the weak-field limit with plane-wave approximation. We apply the analysis to an hypothetical sy…
Observational properties of Coherent Quantum Black Holes
Abdybek Urmanov, Hrishikesh Chakrabarty, Daniele Malafarina
We consider null and time-like geodesics around a spherically symmetric, non-rotating Coherent Quantum Black Hole (CQBH). The classical limit of the geometry of CQBH departs from t…
An emergent cosmological model from running Newton constant
Aknur Zholdasbek, Hrishikesh Chakrabarty, Daniele Malafarina +1
We propose an emergent cosmological model rooted in the Asymptotically Safe antiscreening behavior of the Newton constant at Planckian energies. Distinguishing itself from prior ap…