Pith. sign in

Brane-world stars with solid crust and vacuum exterior

1 Pith paper cite this work. Polarity classification is still indexing.

1 Pith paper citing it
abstract

The minimal geometric deformation approach is employed to show the existence of brane-world stellar distributions with vacuum Schwarzschild exterior, thus without energy leaking from the exterior of the brane-world star into the extra dimension. The interior satisfies all elementary criteria of physical acceptability for a stellar solution, namely, it is regular at the origin, the pressure and density are positive and decrease monotonically with increasing radius, finally all energy conditions are fulfilled. A very thin solid crust with negative radial pressure separates the interior from the exterior, having a thickness $\Delta $ inversely proportional to both the brane tension $\sigma $ and the radius $R$ of the star, i.e. $\Delta ^{-1}\sim R\,\sigma $. This brane-world star with Schwarzschild exterior would appear only thermally radiating to a distant observer and be fully compatible with the stringent constraints imposed on stellar parameters by observations of gravitational lensing, orbital evolutions or properties of accretion disks.

citation-role summary

background 1

citation-polarity summary

fields

gr-qc 1

years

2019 1

verdicts

CONDITIONAL 1

roles

background 1

polarities

unclear 1

representative citing papers

citing papers explorer

Showing 1 of 1 citing paper.

  • Isotropization and change of complexity by gravitational decoupling gr-qc · 2019-09-04 · conditional · none · ref 13 · internal anchor

    A gravitational decoupling technique that continuously isotropizes anisotropic stellar solutions and generates new solutions with controlled complexity factor, demonstrated on two exact examples.