Kuchowicz gravastars in the braneworld formalism

Abstract

In the current letter, we study isotropic static spherically symmetric gravastars without charge under the framework of braneworld gravity (dimensionally reduced RS-II braneworld with positive brane tension) using the metric potential of Kuchowicz type (which is physically acceptable, non-singular and stable) in the Mazur-Motolla conjuncture. We derived the Kuchowicz free parameters from the junction conditions assuming Schwarzschild vacuum without cosmological constant. As well, we assume that the interior is filled with Dark Energy (DE-like) fluid, shell with ultrarelativistic stiff fluid. Adopting this conditions, we probed several physical aspects of the gravastars, such as proper length, shell energy and entropy, surface redshift and adiabatic index, interior region mass.

arXiv comment9 pages, 6 figures: Revised version

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• Stable three-dimensional (un)charged AdS gravastars in gravity's rainbow
• Geometrically contracted structure in teleparallel $f(T)$ gravity
• Modeling Gravastar Structure admitting Kuchowicz Spacetime in Rastall Gravity Theory