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Separation of solar radio bursts in a complex spectrum
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SYSNO ASEP 0360457 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Separation of solar radio bursts in a complex spectrum Author(s) Mészárosová, Hana (ASU-R) RID, ORCID
Rybák, J. (SK)
Karlický, Marian (ASU-R) RID, ORCID
Jiřička, Karel (ASU-R)Number of authors 4 Source Title Advances in Plasma Astrophysics. - Cambridge : Cambridge University Press, 2011 / Bonanno A. - ISSN 1743-9213 - ISBN 9780521197410 Pages s. 150-152 Number of pages 3 s. Action Symposium of the International Astronomical Union /274./ Event date 06.09.2010-10.09.2010 VEvent location Giardini Naxos Country IT - Italy Event type WRD Language eng - English Country GB - United Kingdom Keywords Sun ; flares ; radio radiation Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects IAA300030701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000305161800030 DOI 10.1017/S1743921311006788 Annotation Radio spectra, observed during solar flares, are usually very complex (many bursts and fine structures). We have developed a new method to separate them into individual bursts and analyze them separately. The method is used in the analysis of the 0.8–2.0 GHz radio spectrum of the April 11, 2001 event, which was rich in drifting pulsating structures (DPSs). Using this method we showed that the complex radio spectrum consists of at least four DPSs separated with respect to their different frequency drifts (-115, -36, -23, and -11 MHz/s). These DPSs indicate a presence of at least four plasmoids expected to be formed in a flaring current sheet. These plasmoids produce the radio emission on close frequencies giving thus a mixture of superimposed DPSs observed in the radio spectrum. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2012
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