ON THE ADDITIONAL ABSORPTION OF RADIO EMISSION FROM DISCRETE COSMIC SOURCES UNDER HF MODIFICATION OF THE LOWER IONOSPHERE

DOI: https://doi.org/10.15407/rpra20.04.305

V. G. Bezrodny, O. V. Charkina, Yu. M. Yampolski

Abstract


PACS numbers: 94.20.de,
94.20.Tt, 94.20.ws

The possibilities of modification of a weakly ionized plasma are investigated theoretically and experimentally within different electron density behavior models. The dependence of the additional absorption of radiation of discreet cosmic sources Cassiopeia A and Cygnus A in the artificially disturbed ionospheric D-region on the amplitude of heating signal during the special measuring campaigns of February and October 2008 has been analyzed. The ionosphere has been modified with using the world most powerful HAARP heater, Alaska, USA. The 64 beam riometer located in the immediate vicinity of the heater was used as the recording system.

Key words: riometer, absorption, discrete cosmic source, transionospheric sounding

Manuscript submitted 10.11.2015

Radio phys. radio astron. 2015, 20(4): 305-310

REFERENCES

1. BEZRODNY, V. G., CHARKINA, O. V., YAMPOLSKI, Yu. M., WATKINS, B. and GROVES, K., 2010. Stimulated ionospheric scintillations and absorption of discreet cosmic sources radiation investigated with an imaging HF riometer. Radio Phys. Radio Astron. vol. 15, no. 2, pp. 151–163 (in Russian).

2. GUREVICH, A. V., 2007. Nonlinear effects in the ionosphere. Uspekhi Fizicheskikh Nauk. vol. 177, no. 11, pp. 1145–1177 (in Russian).

3. GUREVICH, A. V., 1965. On the theory of nonlinear effects associated with radio wave propagation in the ionosphere. Geomagnetizm i Aeronomiya. vol. 5, no 1, pp. 70–80 (in Russian).

4. GUREVICH, A. V., 1967. Radio wave influence on the ionosphere in the F-layer. Geomagnetizm i Aeronomiya. vol. 7, no. 2, pp. 291–299 (in Russian).

5. ILLENBERGER, E. and SMIRNOV, B. M., 1998. Electron attachment to atomic systems. Uspekhi Fizicheskikh Nauk. vol. 168, no. 7, pp. 731–766 (in Russian).

6. GINSBURG, V. L., 1967. Electromagnetic wave propagation in plasmas. Moscow: Nauka Publ. (in Russian).

7. GUREVICH, A. V. and SHVARTSBURG, A. B., 1973. Nonlinear theory of propagation of radio waves in the ionosphere. Moscow: Nauka Publ. (in Russian).


Keywords


riometer; absorption; discrete cosmic source; transionospheric sounding

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