Note on the properties of the Schwarzschild-de-Sitter spacetime

Details Note on the properties of the Schwarzschild-de-Sitter spacetime Note on the properties of the Schwarzschild-de-Sitter spacetime

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990baicz..41..341s&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 41, no. 5, Sept. 1990, p. 341-343.

Astronomy and Astrophysics

Astronomy

16

Circular Orbits, Cosmology, Photons, Schwarzschild Metric, Space-Time Functions, Black Holes (Astronomy), Curves (Geometry), Geodesic Lines

Scientific paper

The static region of the Schwarzschild-de Sitter spacetime is studied from the point of view of the optical reference geometry introduced by Abramowicz et al. (1988). It is shown that, in this geometry, the geodesic curvature of circles r = const is independent of the parameter Lambda (cosmological constant) of the spacetime. The consequence of this fact for circular photon orbits is discussed.

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