On the 100th anniversary of the birth of V.L. Ginzburg. Reviews of topical problems

Double plasma resonance nd its manifestations in radio astronomy

 a, ,  a,
a Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, ul. Ulyanova 46, Nizhny Novgorod, 603000, Russian Federation

Double plasma resonance occurs when the upper hybrid frequency coincides with one of the cyclotron harmonic frequencies in a magnetized plasma. This gives rise to a sharp intensification of the plasma wave instability. The radiation mechanism based on this effect allows one to explain the origin of the "zebra pattern" in radio spectra of the Sun, Jupiter and the Crab pulsar. Successful interpretation of spectra of diverse astronomical objects in terms of the double plasma resonance effect points to the universal character of this phenomenon under a broad range of astrophysical conditions.

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Keywords: solar corona, Jupiter's magnetosphere, Crab pulsar, plasma instability, radio emission
PACS: 96.60.P−, 96.60.Tf, 97.60.Gb, 52.35.−g, 52.35.Hr, 52.35.Qz (all)
DOI: 10.3367/UFNe.2016.05.037813
Citation: Zheleznyakov V V, Zlotnik E Ya, Zaitsev V V, Shaposhnikov V E "Double plasma resonance nd its manifestations in radio astronomy" Phys. Usp. 59 997–1020 (2016)
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Received: 26th, April 2016, 24th, May 2016

:   ,   ,   ,    « » 186 1090–1116 (2016); DOI: 10.3367/UFNr.2016.05.037813

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