High-frequency radiation from a particle falling into a Kerr black hole

Details High-frequency radiation from a particle falling into a Kerr black hole High-frequency radiation from a particle falling into a Kerr black hole

Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..51..229d&link_type=abstract

Astrophysics and Space Science, vol. 51, no. 1, Sept. 1977, p. 229-234.

Astronomy and Astrophysics

Astronomy

5

Black Holes (Astronomy), Electromagnetic Radiation, Gravitational Waves, Relativistic Particles, Angular Distribution, Kerr Effects, Spectral Energy Distribution

Scientific paper

The high-frequency electromagnetic and gravitational radiation from a relativistic particle falling into a Kerr and a Schwarzschild black hole is considered. The spectral and angular distributions of the radiated energy are calculated by applying the WKB technique to Teukolsky's (1973) equations. The spectra obtained have a characteristic exponential cutoff at a frequency that is proportional to the particle Lorentz factor. At frequencies as low as those comparable to the cutoff, both electromagnetic and gravitational spectra are flat. The amount of the energy emitted in low-frequency modes depends strongly on the radiation 'spin'.

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