Timelike Killing vectors and ergo surfaces in non-asymptotically flat spacetimes

Details Timelike Killing vectors and ergo surfaces in non-asymptotically flat spacetimes Timelike Killing vectors and ergo surfaces in non-asymptotically flat spacetimes

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005gregr..37..313p&link_type=abstract

General Relativity and Gravitation, Volume 37, Issue 2, pp.313-326

Mathematics

Logic

Cosmological Constant, Killing Observers, Vorticity, Penrose Process

Scientific paper

Ergo surfaces are investigated in spacetimes with a cosmological constant. We find the existence of multiple timelike Killing vectors, each corresponding to a distinct ergo surface, with no one being preferred. Using a kinematic invariant, which provides a measure of hypersurface orthogonality, we explore its potential role in selecting a preferred timelike Killing vector and consequently a unique ergo surface.

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