Distortion of the stellar sky by a Schwarzschild black hole

Details Distortion of the stellar sky by a Schwarzschild black hole Distortion of the stellar sky by a Schwarzschild black hole

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010amjph..78..204m&link_type=abstract

American Journal of Physics, Volume 78, Issue 2, pp. 204-214 (2010).

Statistics

Computation

6

Black Holes, Differential Geometry, Fraunhofer Diffraction, Gravitational Lenses, Physics Education, Schwarzschild Metric, Stellar Spectra, General Relativity And Gravitation, Computational Techniques, Simulations

Scientific paper

The optical appearance of the stellar sky for an observer in the vicinity of a black hole is dominated by bending of light, the frequency shift, and the magnification caused by gravitational lensing and aberration. Due to the finite aperture of an observer's eye or a telescope, Fraunhofer diffraction has to be taken into account. We have used high performance graphics hardware and developed a program that enables the user to interactively explore the stellar sky in the vicinity of a Schwarzschild black hole. To do so, we determine what an observer, who can either move quasistatically around the black hole or follow a timelike radial geodesic, would actually see.

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