Gravitational deflection of null radiation by relativistic, spherical masses

Details Gravitational deflection of null radiation by relativistic, spherical masses Gravitational deflection of null radiation by relativistic, spherical masses

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230..249l&link_type=abstract

Astrophysical Journal, Part 1, vol. 230, May 15, 1979, p.249-254.

Astronomy and Astrophysics

Astronomy

4

Gravitational Fields, Mass Distribution, Neutron Stars, Particle Mass, Radiation Distribution, Relativistic Particles, Active Galaxies, Approximation, Black Holes (Astronomy), Energy Distribution, Quasars, Schwarzschild Metric, Spheres

Scientific paper

We consider bursts of null radiation emitted from point sources at rest within a relativistic, spherical mass distribution whose gravitational field is represented by the interior and exterior Schwarzschild metrics. Numerical calculations are presented, in the geometrical optics approximation, of the resulting distributions of energy radiated to infinity. It is found that gravitational 'focal points' exist within the mass in analogy with the external focal points discussed earlier in the weak-field case. The possible relevance of the present model to emission of null radiation by neutron stars, active galaxies, and quasars is discussed.

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