Slowly rotating dark energy stars

Grigoris Panotopoulos, Ángel Rincón, Ilídio Lopes

Research output: Contribution to journalArticlepeer-review

Abstract

We study isotropic and slowly-rotating stars made of dark energy adopting the extended Chaplygin equation-of-state. We compute the moment of inertia as a function of the mass of the stars, both for rotating and non-rotating objects. The solution for the non-diagonal metric component as a function of the radial coordinate for three different star masses is shown as well. We find that (i) the moment of inertia increases with the mass of the star, (ii) in the case of non-rotating objects the moment of inertia grows faster, and (iii) the curve corresponding to rotation lies below the one corresponding to non-rotating stars.

Original languageEnglish
Article number100885
JournalPhysics of the Dark Universe
Volume34
DOIs
StatePublished - Dec 2021
Externally publishedYes

Keywords

  • Composition of astronomical objects
  • Dark energy
  • Relativistic stars

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