A Schwarzschild black hole as a focusing reflector

Details A Schwarzschild black hole as a focusing reflector A Schwarzschild black hole as a focusing reflector

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979azh....56..541f&link_type=abstract

Astronomicheskii Zhurnal, vol. 56, May-June 1979, p. 541-548. In Russian.

Astronomy and Astrophysics

Astronomy

Astronomical Models, Black Holes (Astronomy), Gravitational Lenses, Schwarzschild Metric, Crab Nebula, Milky Way Galaxy, Point Sources, Supernovae

Scientific paper

It is noted that a Schwarzschild black hole is a unique 'gravitational mirror' that reflects part of the radiation from a distant source. The reflected radiation (the 'echo') is shown to be focused along a line joining the source and the black hole. The dependence of 'echo' intensity on detector position is obtained, taking into account the finite source size. The possibility is considered of observing and investigating black holes on the basis of the gravitational-reflector effect.

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