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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v71.i4.60
pages 365-377

PARAMETRIC SOURCE OF ELF TRANSIENTS

A. P. Nickolaenko
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine

RESUMO

We address changes in the global electric circuit, which were caused by arrival of the giant gamma flare from SGR 1806-20 to the dayside of the globe. It is shown that a parametric source of radio emission depends on the structure of the global electric circuit. We consider the formation of a discrete radio pulse in the framework of realistic exponential height profile of air resistance. We show that altitudes around the tropopause play a significant role in pulse formation. Spectral density radiated is inversely proportional to the frequency. Waveforms are computed of a parametric pulse caused by the gamma rays arrival.

Referências

  1. Nickolaenko, A.P., Parametric excitation of an extremely low-frequency radio pulse by an extragalactic gamma-ray burst on December 27, 2004.

  2. Nickolaenko, A.P., Kudintseva, I.G., Pechonaya, O., Hayakawa, M., Nakamura, T., Hobara, Y., and Tanaka, Y., Impact of a gamma-ray burst on the Schumann resonance.

  3. Nickolaenko, A.P. and Schekotov, A.Yu., Experimental detection of an ELF radio pulse associated with the gamma-ray burst of December 27, 2004.

  4. Rycroft, M.J., Israelsson, S., and Price, C., The global atmospheric electric circuit, solar activity and climate change.

  5. Rycroft, M.J., Odzimek, A., Arnold, N.F., Fullekrug, M., Kulak, A., and Neubert, T., New model simulations of the global atmospheric electric circuit driven by thunderstorms and electrified shower clouds: The roles of lightning and sprites.

  6. Inan, U.S., Lehtinen, N.G., Moore, R.C., Hurley, K., Boggs, S., Smith, D.M., and Fishman, G.J., Massive disturbance of the daytime lower ionosphere by the giant g-ray flare from magnetar SGR 1806-20.


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