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A moving medium simulation of Schwarzschild black hole optics

Kjell Rosquist
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Abstract

An explicit fluid flow simulation of electromagnetic wave propagation in the gravitational field of a Schwarzschild black hole is given. The fluid has a constant refractive index and a spherically symmetric inward directed flow. The resulting form of the metric leads to a new coordinate system in which the Schwarzschild vacuum is written in Gordon's form. It is shown that a closely related coordinate system interpolates between the Kerr-Schild and Painleve-Gullstrand coordinates.

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Kjell Rosquist. 2003-09-25. A moving medium simulation of Schwarzschild black hole optics. https://doi.org/10.1023/b%3Agerg.0000036055.82140.06

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