A moving medium simulation of Schwarzschild black hole optics

نویسنده

Kjell Rosquist

چکیده

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 Painlevé-Gullstrand coordinates. PACS numbers: 04.70.Bw, 04.70.Dy, 04.80.-y

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