Perturbations of Kantowski-Sachs models
2015 (English)In: Proceedings of the Thirteenth Marcel Grossman Meeting on General Relativity / [ed] Robert T Jantzen, Kjell Rosquist, Remo Ruffini, Singapore: World Scientific, 2015, 2547-2549 p.Conference paper (Refereed)
Perturbations of Kantowski-Sachs models with a positive cosmological constant are considered in a harmonic decomposition, in the framework of gauge invariant 1+3 and 1+1+2covariant splits of spacetime. Scalar, vector and tensor modes are allowed, however they remain vorticity-free and of perfect fluid type. The dynamics is encompassed in six evolution equations for six harmonic coefficients.
Place, publisher, year, edition, pages
Singapore: World Scientific, 2015. 2547-2549 p.
Astronomy, Astrophysics and Cosmology
Research subject Theoretical Physics
IdentifiersURN: urn:nbn:se:umu:diva-116120ISBN: 9789814612142OAI: oai:DiVA.org:umu-116120DiVA: diva2:901462
The Thirteenth Marcel Grossman Meeting on General Relativity, July 1 - 7 2012, Stockholm, Sweden