Ground-based and spacecraft observations of lightning activity on Saturn

被引：15

作者：

Zakharenko, V. ^{[1
]}

Mylostna, C. ^{[1
]}

Konovalenko, A. ^{[1
]}

Zarka, P. ^{[2
]}

Fischer, G. ^{[3
]}

Griessmeier, J-M ^{[4
]}

Litvinenko, G. ^{[1
]}

Rucker, H. ^{[3
]}

Sidorchuk, M. ^{[1
]}

Ryabov, B. ^{[1
,5
]}

Vavriv, D. ^{[1
]}

Ryabov, V.

Cecconi, B. ^{[2
]}

Coffre, A. ^{[6
]}

Denis, L. ^{[6
]}

Fabrice, C. ^{[6
]}

Pallier, L. ^{[2
]}

Schneider, J. ^{[7
]}

Kozhyn, R. ^{[1
]}

Vinogradov, V. ^{[1
]}

Mukha, D. ^{[1
]}

Weber, R. ^{[8
]}

Shevchenko, V. ^{[1
]}

Nikolaenko, V. ^{[1
]}

机构：

[1] Inst Radio Astron, Kharkov, Ukraine

[2] Univ Paris Diderot, UPMC, CNRS, LESIA,Observ Paris, F-92190 Meudon, France

[3] Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria

[4] LPC2E, F-45071 Orleans 2, France

[5] Future Univ, Hakodate, Hokkaido, Japan

[6] CNRS, Observ Paris, Stn Radioastron, F-18330 Nancay, France

[7] Observ Paris, LUTH, F-92190 Meudon, France

[8] Univ Orleans, LESI, F-45067 Orleans, France

来源：

PLANETARY AND SPACE SCIENCE | 2012年 / 61卷 / 01期

关键词：

Saturn electrostatic discharges; Time differences; Spectrum; Storm activity; ELECTROSTATIC DISCHARGES; RADIO; SPECTRA; STORM;

D O I：

10.1016/j.pss.2011.07.021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In late 2007, Saturn electrostatic discharges (SED) were simultaneously observed at the radio telescope UTR-2 and with the Cassini spacecraft. Observations at UTR-2 were performed with a multichannel receiver in the frequency range 12-33 MHz, and those performed on Cassini-with a swept frequency receiver that is part of the RPWS (Radio and Plasma Wave Science) instrument in the frequency band 1.8-16 MHz. We got a very good coincidence between data of UTR-2 and Cassini. It is shown for the first time that ground-based radio astronomy lets us detect Saturn's lightning with a high degree of reliability despite terrestrial interferences. This is the necessary basis for further detailed study of the temporal and spectral characteristics of the SEDs with ground based radio telescopes. Based on six observation sessions, several parameters of SEDs were determined, in particularly a correlation of 0.77 +/- 0.15 between the average intensity of storms and the e-folding time. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：53 / 59

页数：7

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