Search Results - "Jhingan, Sanjay"

PRIMORDIAL BLACK HOLE FORMATION IN THE MATTER-DOMINATED PHASE OF THE UNIVERSE by Harada, Tomohiro, Yoo, Chul-moon, Kohri, Kazunori, Nakao, Ken-ichi, Jhingan, Sanjay

“…ABSTRACT We investigate primordial black hole formation in the matter-dominated phase of the universe, where nonspherical effects in gravitational collapse…”
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Spherical and nonspherical models of primordial black hole formation: exact solutions by Harada, Tomohiro, Jhingan, Sanjay

“…We construct spacetimes which provide spherical and nonspherical models of black hole formation in the flat Friedmann–Lemaitre–Robertson–Walker (FLRW) universe…”
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Testing the consistency between cosmological measurements of distance and age by Nair, Remya, Jhingan, Sanjay, Jain, Deepak

“…We present a model independent method to test the consistency between cosmological measurements of distance and age, assuming the distance duality relation. We…”
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Constraints on dark energy and modified gravity models by the Cosmological Redshift Drift test by Jain, Deepak, Jhingan, Sanjay

“…We study cosmological constraints on the various accelerating models of the universe using the time evolution of the cosmological redshift of distant sources…”
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The Lovelock gravity in the critical spacetime dimension by Dadhich, Naresh, Ghosh, Sushant G., Jhingan, Sanjay

“…It is well known that the vacuum in the Einstein gravity, which is linear in the Riemann curvature, is trivial in the critical (2+1=3) dimension because vacuum…”
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Cosmological constraints for an Eddington-Born-Infeld field by De Felice, Antonio, Gumjudpai, Burin, Jhingan, Sanjay

“…We consider the Eddington-Born-Infeld (EBI) model here without assuming any cosmological constant. The EBI scalar field is supposed to play a role of both dark…”
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Synergy between ground- and space-based gravitational-wave detectors for estimation of binary coalescence parameters by Nair, Remya, Jhingan, Sanjay, Tanaka, Takahiro

“…We study the advantages of the coexistence of future ground- and space-based gravitational-wave detectors in estimating the parameters of a binary coalescence…”
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Renormalization group approach to Einstein-Rosen waves by Harada, Tomohiro, Jhingan, Sanjay

“…We present a renormalization group analysis to Einstein-Rosen waves or vacuum spacetimes with whole-cylinder symmetry. It is found that self-similar solutions…”
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Gravitational collapse of charged dust cloud in the Lovelock gravity by Ohashi, Seiju, Shiromizu, Tetsuya, Jhingan, Sanjay

“…We study the effect of charge on gravitational collapse of an inhomogeneous dust cloud in the Einstein, Gauss-Bonnet and Lovelock gravity. Dynamics of the…”
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Spherical collapse of inhomogeneous dust cloud in the Lovelock theory by Ohashi, Seiju, Shiromizu, Tetsuya, Jhingan, Sanjay

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XMM–Newton view of a hard X-ray transient IGR J17497–2821 by Alam, Md. Shah, Mukherjee, Dipanjan, Mondal, Aditya S., Dewangan, Gulab C., Jhingan, Sanjay, Raychaudhuri, Biplab

“…We present spectral and energy-dependent timing characteristics of the hard X-ray transient IGR J17497–2821 based on XMM–Newton observations performed five and…”
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Weak cosmic censorship in gravitational collapse with astrophysical parameter values by Miyamoto, Umpei, Jhingan, Sanjay, Harada, Tomohiro

“…The possible violation of the weak cosmic censorship hypothesis in astrophysical phenomena can provide us with information about trans-Planckian physics…”
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Global visibility of a singularity in spherically symmetric gravitational collapse by Jhingan, Sanjay, Kaushik, Sahal

“…We revisit the gravitational collapse of spherically symmetric Lemaitre-Tolman-Bondi dust models. A sufficient condition for global visibility of singularity…”
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Improvement on the metric reconstruction scheme in the Regge-Wheeler-Zerilli formalism by Jhingan, Sanjay, Tanaka, Takahiro

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Spherical and nonspherical models of primordial black hole formation: exact solutions by Harada, Tomohiro, Jhingan, Sanjay

“…Prog.Theor.Exp.Phys. (2016) 093E04 We construct spacetimes which provide spherical and nonspherical models of black hole formation in the flat…”
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Spectrum of end states of gravitational collapse with tangential stresses by Gonçalves, Sérgio M. C. V., Jhingan, Sanjay, Magli, Giulio

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Energy emission from high curvature region and its backreation by Kokubu, Takafumi, Jhingan, Sanjay, Harada, Tomohiro

“…Phys. Rev. D 97, 104014 (2018) A strong gravity naked singular region can give important clues towards understanding classical as well as spontaneous nature of…”
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Bound orbits and gravitational theory by Dadhich, Naresh, Ghosh, Sushant G., Jhingan, Sanjay

“…It can be easily shown that bound orbits around a static source can only exist in four dimensions for any force driven by the Laplace equation. This is true…”
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Gravitational collapse in pure Lovelock gravity in higher dimensions by Dadhich, Naresh, Ghosh, Sushant G., Jhingan, Sanjay

“…We study the collapse of inhomogeneous dust and null dust (Vaidya radiation) in pure Lovelock gravity in higher dimensions. Since pure Lovelock gravity is…”
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Component separation map-making for stochastic gravitational wave background by Parida, Abhishek, Suresh, Jishnu, Mitra, Sanjit, Jhingan, Sanjay

“…Superposition of unresolved sources of gravitational waves (GW) is expected to create a persistent background of stochastic gravitational wave background…”
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