Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978gregr...9..165s&link_type=abstract
General Relativity and Gravitation, vol. 9, Feb. 1978, p. 165-174.
Astronomy and Astrophysics
Astronomy
9
Black Holes (Astronomy), Gravitation Theory, Neutron Stars, Stellar Mass, Stellar Models, Gravitational Collapse, Gravitational Waves, Monopoles, Orbit Calculation, Range (Extremes), Relativistic Effects, Topography
Scientific paper
Since Rosen's bimetric theory of gravity provides at present a worthy devil's advocate for the black hole hypothesis, it is important for eventual observational work to elaborate the astrophysical consequences and possibilities peculiar to it. This work is begun by deriving the orbital topography of the spherically symmetric solution to Rosen's field equations - which is relevant to the behavior of relativistic axisymmetric accretion flows - and calculating predicted accretion disk efficiencies, which can be as much as 2.5 times higher than for a disk in Schwarzschild. Thereafter, a brief treatment of the shortest kinematic time scale and the time dilations for in-falling material is given. Finally it is shown that Birkhoff's theorem does not hold in Rosen's theory, and, therefore, that genuine gravitational monopole radiation is possible. The energy it carries, however, is not positive definite.
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