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11 papers · 1 filter
Possible features of galactic halo with electric field and observational constraints
Koushik Chakraborty, Farook Rahaman, Saibal Ray +2
Observed rotational curves of neutral hydrogen clouds strongly support the fact that galactic halo contains huge amount of nonluminous matter, the so called gravitational dark matt…
Topology of desiccation crack patterns in clay and invariance of crack interface area with thickness
Tajkera Khatun, Tapati Dutta, Sujata Tarafdar
We study the crack patterns developed on desiccating films of an aqueous colloidal suspension of bentonite on a glass substrate. Varying the thickness of the layer gives the fo…
Exact solutions in (2 + 1)-dimensional anti-de Sitter space-time admitting a linear or non-linear equation of state
Ayan Banerjee, Farook Rahaman, Kanti Jotania +2
Gravitational analyzes in lower dimensions has become a field of active research interest ever since Banados, Teitelboim and Zanelli (BTZ) (Phys. Rev. Lett. 69, 1849, 1992) proved…
Interacting holographic dark energy models: A general approach
S. Som, A. Sil
Dark energy models inspired by the cosmological holographic principle are studied in homogeneous isotropic spacetime with a general choice for the dark energy density $ρ_d=3(αH^2+β…
Singularity free anisotropic strange quintessence star
Piyali Bhar
Present paper provides a new model of anisotropic strange star corresponding to the exterior schwarzschild metric. The Einstein field equations have been solved by utilizing the Kr…
A cosmographic analysis of holographic dark energy models
Supriya Pan, Subenoy Chakraborty
The present work deals with a detailed study of interacting holographic dark energy model for three common choices of the interaction term. Also, two standard choices of IR cut-off…