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Related papers: Alternative zebra-structure models in solar radio …

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Discussion about the nature of zebra-structure (ZS) in the type IV radio bursts continues, despite the ten proposed models. First of all, this is due to the wide variety of stripes in each new phenomenon, when the explanation of all the…

Solar and Stellar Astrophysics · Physics 2017-04-11 G. P. Chernov , V. V. Fomichev , R. A. Sych

The publications of the last three years concerning the study of the most intriguing fine structure in type IV solar radio bursts, zebra pattern (ZP), are surveyed. The main attention is paid to new observations, irrespective of whether a…

Solar and Stellar Astrophysics · Physics 2016-03-15 Gennady Chernov

We analyze complex zebra patterns and fiber bursts during type-IV solar radio bursts on August 1, 2010. It was shown that all of the main details of sporadic zebra patterns can be explained within the model of zebra patterns and fiber…

Solar and Stellar Astrophysics · Physics 2018-12-12 G. P. Chernov , V. V. Fomichev , R. A. Sych

The analysis of the spectral characteristics of the burst radio emission on June 21, 2011 was carried out on the basis of an improved methodology for determining harmonic numbers for the corresponding stripes of the zebra structure. By…

Solar and Stellar Astrophysics · Physics 2020-02-05 L. V. Yasnov , G. P. Chernov

Microwave zebra pattern structure is an intriguing fine structure on the dynamic spectra of solar type IV radio burst. Up to now, there isn't a perfect physical model for the origin of the solar microwave zebra pattern. Recently, Ledenev,…

Solar and Stellar Astrophysics · Physics 2014-11-20 Baolin Tan

The so-called zebra structures in radio dynamic spectra, specifically their frequencies and frequency drifts of emission stripes, contain information on the plasma parameters in the coronal part of flare loops. This paper presents…

Solar and Stellar Astrophysics · Physics 2011-09-28 A. T. Altyntsev , S. V. Lesovoi , N. S. Meshalkina , R. A. Sych , Y. Yan

We investigate the formation of zebra-like fine spectral structures (consisting of several parallel bands in the dynamic spectrum) in the Jovian broadband kilometric radiation; such radio bursts were observed by Cassini in 2000/2001. We…

Earth and Planetary Astrophysics · Physics 2015-06-11 A. A. Kuznetsov , V. G. Vlasov

Sausage modes that are axisymmetric fast magnetoacoustic oscillations of solar coronal loops are characterized by variation of the plasma density and magnetic field, and hence cause time variations of the electron plasma frequency and…

Solar and Stellar Astrophysics · Physics 2016-08-17 Sijie Yu , V. M. Nakariakov , Yihua Yan

The reason for the occurrence of different elements of the fine structure of solar radio bursts in the decimeter and centimeter wavelength ranges has been determined based on all available data from terrestrial and satellite observations.…

Solar and Stellar Astrophysics · Physics 2017-11-22 G. P. Chernov , V. V. Fomichev , Y. Yan , B. Tan , Ch. Tan , Q. Fu

Zebra pattern structure (ZP) is the most intriguing fine structure on the dynamic spectrograph of solar microwave burst. On 15 February 2011, there erupts an X2.2 flare event on the solar disk, it is the first X-class flare since the solar…

Solar and Stellar Astrophysics · Physics 2015-05-30 Baolin Tan , Yihua Yan , Chengming Tan , Robert Sych , Guannan Gao

The unusual radio burst of May 29, 2003 connected with the M1.5 flare in AR 10368 has been analyzed. It was observed by the Solar Broadband Radio Spectrometer (SBRS/Huairou station, Beijing) in the 5.2-7.6 GHz range. It proved to be only…

Solar and Stellar Astrophysics · Physics 2015-06-03 G. P. Chernov , R. A. Sych , N. S. Meshalkina , Y. Yan , C. Tan

Microwave emission with spectral zebra pattern structures (ZPs) is observed frequently in solar flares and the Crab pulsar. The previous observations show that ZP is only a structure overlapped on the underlying broadband continuum with…

Solar and Stellar Astrophysics · Physics 2015-06-22 Baolin Tan , Chengming Tan , Yin Zhang , Jing Huang , Hana Meszarosova , Marian Karlicky , Yihua Yan

A simple mechanism for the generation of electromagnetic Zebra pattern emission is proposed. The mechanism is based on the generation of an ion-ring distribution in a magnetic mirror geometry in the presence of a properly directed…

Space Physics · Physics 2011-10-03 R. A. Treumann , R. Nakamura , W. Baumjohann

Zebra-like patterns have been observed in the electron cyclotron emission spectra from strongly nonequilibrium plasma confined in a table-top mirror magnetic trap. The analysis of the experimental data suggests that the formation of…

Plasma Physics · Physics 2020-06-16 M. E. Viktorov , A. G. Shalashov , E. D. Gospodchikov , N. Yu. Semin , S. V. Golubev

The microwave zebra pattern (ZP) is the most interesting, intriguing, and complex spectral structure frequently observed in solar flares. A comprehensive statistical study will certainly help us to understand the formation mechanism, which…

Solar and Stellar Astrophysics · Physics 2015-06-18 Baolin Tan , Chengming Tan , Yin Zhang , H. Meszarosova , M. Karlicky

The measurement of positions and sizes of radio sources in the observations of solar radio spectral fine structures in an M6.5 flare on April 11, 2013 were observed simultaneously by several radio instruments at four different…

Solar and Stellar Astrophysics · Physics 2016-02-17 Gennady Chernov , Robert Sych , Baolin Tan , Yihua Yan , Chengming Tan , Qijun Fu , Marian Karlicky , Valery Fomichev

It is generally considered that the emission of microwave zebra pattern (ZP) structures requires high density and high temperatures, which is similar to the situation of the flaring region where primary energy releases. Therefore, the…

Solar and Stellar Astrophysics · Physics 2015-06-11 Sijie Yu , Yihua Yan , Baolin Tan

The microwave radio dynamic spectra of the Crab pulsar interpulse contain fine structures represented via narrowband quasiharmonic stripes. The pattern significantly constrains any potential emission mechanism. Similar to the zebra patterns…

High Energy Astrophysical Phenomena · Physics 2024-01-31 M. Labaj , J. Benáček , M. Karlický

In this review we summarize results of our analysis of the observations of solar eruptive flares made by the Ond\v{r}ejov radiospectrograph for more than twenty years. We also present some Potsdam-Tremsdorf radio spectra from our common…

Solar and Stellar Astrophysics · Physics 2023-07-17 Marian Karlický

The double plasma resonance (DPR) instability plays a basic role in the generation of solar radio zebras. In the plasma, consisting of the loss-cone type distribution of hot electrons and much denser and colder background plasma, this…

Plasma Physics · Physics 2018-03-28 Jan Benáček , Marian Karlický
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