On the possibility of detecting black holes by the gravitational mirror effect.
Abstract
The article deals with the effect of the 'gravitational mirror', i.e., a specific reverberation of the signal in the blackhole's gravitational field caused by strong light deflection in such a field. The intensity of reflected 'echo' is obtained as a function of the distance to the black hole and of the angular distance from the black-hole signal source line. Intensification of the backscattered signal is shown. The conclusion is made that detection of black holes by the echo effect from the gravitational mirror is possible in principle. The effect of the 'echo' splitting into a series of pulses ('multiple echo') is considered. Exact determination of the black-hole radius from the time interval between these pulses is shown to be possible.
- Publication:
-
Astrometriia i Astrofizika
- Pub Date:
- 1977
- Bibcode:
- 1977AAfz...33...35F
- Keywords:
-
- Black Holes (Astronomy);
- Gravitational Effects;
- Light (Visible Radiation);
- Reflected Waves;
- Backscattering;
- Luminous Intensity;
- Radii;
- Signal Reflection;
- Astrophysics