30 citations · 91 across the 9 of their papers we have counts for
10 papers
A Reissner-Nordström black hole in the Friedman-Robertson-Walker universe
Safiqul Islam, Priti Mishra, Somi Aktar +1
A charged, non-rotating, spherically symmetric black hole which has cosmological constant (Reissner-Nordström+ or RN+), active gravitational mass and electric charge…
Curious case of gravitational lensing by binary black holes: a tale of two photon spheres, new relativistic images and caustics
Mandar Patil, Priti Mishra, D. Narasimha
Binary black holes have been in limelight off late due to the detection of gravitational waves from coalescing compact binaries in the events GW150914 and GW151226. In this paper w…
Thermodynamics and Lemaitre-Tolman-Bondi void models
Priti Mishra, Tejinder P. Singh
It has been argued in the literature that in order to make a matter dominated Friedmann-Lemaitre-Robertson-Walker universe compatible with the generalized second law of thermodynam…
Redshift and redshift-drift in quasi-spherical Szekeres cosmological models and the effect of averaging
Priti Mishra, Marie-Noëlle Célérier
Since the advent of the accelerated expanding homogeneous universe model, some other explanations for the supernova Ia dimming have been explored, among which there are inhomogeneo…
Redshift-drift as a test for discriminating between decelerating inhomogeneous and accelerating universe models
Priti Mishra, Marie-Noëlle Célérier, Tejinder P. Singh
Exact inhomogeneous solutions of Einstein's equations have been used in the literature to build models reproducing the cosmological data without dark energy. However, owing to the…
Fully Characterizing Axially Symmetric Szekeres Models With Three Data Sets
Marie-Noëlle Célérier, Priti Mishra, Tejinder P. Singh
Inhomogeneous exact solutions of General Relativity with zero cosmological constant have been used in the literature to challenge the ΛCDM model. From one patch Lemaître-Tolman-Bon…
Galaxy rotation curves from a fourth order gravity
Priti Mishra, Tejinder P. Singh
While the standard and most popular explanation for the flatness of galaxy rotation curves is dark matter, one cannot at this stage rule out an explanation based on a modified law…
Redshift drift in axially symmetric quasi-spherical Szekeres models
Priti Mishra, Marie-Noëlle Célérier, Tejinder P. Singh
Models of inhomogeneous universes constructed with exact solutions of Einstein's General Relativity have been proposed in the literature with the aim of reproducing the cosmologica…
Modified gravity as a common cause for cosmic acceleration and flat galaxy rotation curves
Priti Mishra, Tejinder P. Singh
Flat galaxy rotation curves and the accelerating Universe both imply the existence of a critical acceleration, which is of the same order of magnitude in both the cases, in spite o…
Fourth Order Gravity, Scalar-Tensor-Vector Gravity, and Galaxy Rotation Curves
Priti Mishra, Tejinder P. Singh
The Lambda-CDM model is the best fit to cosmological data, and to the observed galactic rotation curves. However, in the absence of a direct detection of dark matter one should exp…