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Journal Article

Gravitational redshifts in electromagnetic bursts occuring near Schwarzschild horizon

MPS-Authors

Malec,  Edward
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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3107.pdf
(Preprint), 147KB

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Citation

Karkowski, J., & Malec, E. (2002). Gravitational redshifts in electromagnetic bursts occuring near Schwarzschild horizon. Classical and Quantum Gravity, 20(1), 85-91.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-54A0-6
Abstract
It was suggested earlier that the gravitational redshift formula can be invalid when the effect of the backscattering is strong. It is demonstrated here, for an exemplary electromagnetic pulse that is: i) initially located very close to the horizon of a Schwarzschild black hole and ii) strongly backscattered, that a mean frequency does not obey the standard redshift formula. Redshifts appear to depend on the frequency and there manifests a backscatter-induced blueshift in the outgoing radiation.