Radiation from ultrarelativistic particles in a strong gravitational field

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6283565

Gal'tsov, D V; Matyukhin, A A

The emission of spin-0, 1, and 2 waves by particles moving with ultrarelativistic velocity along circular geodesics in spacetime described by the Kerr metric is studied. The method of reducing the Teukolsky equation to an equation with a real effective potential is used, which makes it possible to obtain wave fields of nonzero spin by differentiating the scalar field. Analytic expressions for the spectra and multipole distributions of the fields are obtained and analyzed and the results are compared to the corresponding characteristics of synchrotron radiation in flat spacetime. It is shown that a black hole absorbs exactly half of the emitted radiation intensity and a qualitative interpretation of this phenomenon is suggested.

• Research Organization: D. I. Mendeleev Chemico Technological Institute, Moscow
• OSTI ID: 6283565
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 45:3; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

657003* -- Theoretical & Mathematical Physics-- Relativity & Gravitation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTIVITY
BLACK HOLES
ELEMENTARY PARTICLES
EMISSION SPECTRA
ENERGY RANGE
GEODESICS
GRAVITATIONAL FIELDS
KERR METRIC
METRICS
MULTIPOLES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RELATIVISTIC RANGE
SPACE-TIME
SPECTRA