Anisotropic fluid inside a relativistic star

Abstract

An anisotropic fluid with variable energy density and negative pressure is proposed, both outside and inside stars. The gravitational field is constant everywhere in free space (if we neglect the local contributions) and its value is of the order of $g=10^{-8}cm/s^2$, in accordance with MOND model. With $\rho ,p\propto 1/r$, the acceleration is also constant inside stars but the value is different from one star to another and depends on their mass $M$ and radius $R$. In spite of the fact that the spacetime is of Rindler type and curved even far from a local mass, the active gravitational energy on the horizon is $-1/4g$, as for the flat Rindler space, excepting the negative sign.

9 pages, refs added, new chapter added, no figures

References in corpus (4)

• Tunnelling, Temperature and Taub-NUT Black Holes
• The general relativistic infinite plane
• On surface tension for compact stars
• Is the Rindler horizon energy nonvanishing ?

Cited by in corpus (6)

• Evading Derrick's theorem in curved space: Static metastable spherical domain wall
• Time dependent embedding of spherically symmetric Rindler-like spacetime
• On a particular Morris - Thorne wormhole
• Rindler-type geometry inside a black hole
• A scan of f(R) models admitting Rindler type acceleration
• Comment on "Non-vacuum conformally flat space-times: dark energy"