Pith. sign in

REVIEW 3 cited by

Gravastar Solutions with Continuous Pressures and Equation of State

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv gr-qc/0511097 v3 pith:NETIRVZ2 submitted 2005-11-17 gr-qc astro-phhep-th

A. DeBenedictis , D. Horvat , S. Ilijic , S. Kloster , K. S. Viswanathan This is my paper · ORCID
classification gr-qcastro-phhep-th
keywords equationgravastarstatebeenconditionscontinuousenergyfluid
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We study the gravitational vacuum star (gravastar) configuration as proposed by other authors in a model where the interior de Sitter spacetime segment is continuously extended to the exterior Schwarzschild spacetime. The multilayered structure in previous papers is replaced by a continuous stress-energy tensor at the price of introducing anisotropy in the (fluid) model of the gravastar. Either with an ansatz for the equation of state connecting the radial $p_r$ and tangential $p_t$ pressure or with a calculated equation of state with non-homogeneous energy/fluid density, solutions are obtained which in all aspects satisfy the conditions expected for an anisotropic gravastar. Certain energy conditions have been shown to be obeyed and a polytropic equation of state has been derived. Stability of the solution with respect to possible axial perturbation is shown to hold.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Herrera Complexity and Shadows of Spherically Symmetric Compact Objects

    gr-qc 2025-01 conditional novelty 6.0 of 10

    The sign of the Herrera complexity factor at a light ring indicates whether that ring is a stable or unstable photon sphere, and zero-complexity compact objects cannot host external photon spheres.

  2. Anisotropic gravastar as horizonless regular black hole spacetime and its images illuminated by thin accretion disk

    gr-qc 2024-11 conditional novelty 6.0 of 10

    The authors build an anisotropic gravastar model whose pressure profile and cut-off make it interpolate between a Hayward regular black hole and a horizonless ultracompact star, then compute shadow images for two accr...

  3. Astrophysical environment around a black hole in the braneworld and its optical signatures

    hep-th 2026-05 unverdicted novelty 3.0 of 10

    Braneworld quadratic and nonlocal corrections weaken gravity in anisotropic Einstein-cluster environments around black holes, blocking horizon formation and shifting Einstein-ring and shadow radii in ways that may con...

Pith tools