Study of Flare Energy Release Using Events with Numerous Type III-like Bursts in Microwaves
| العنوان: | Study of Flare Energy Release Using Events with Numerous Type III-like Bursts in Microwaves |
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| المؤلفون: | A. A. Kochanov, S. V. Lesovoi, D. A. Zhdanov, N. S. Meshalkina, A. T. Altyntsev, Tan Chengming, Yan Yihua |
| المصدر: | Solar Physics. 280:537-549 |
| بيانات النشر: | Springer Science and Business Media LLC, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Physics, Solar flare, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Electron, Astrophysics, Spectral line, Radio spectrum, law.invention, Narrowband, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, law, Temporal resolution, Solar and Stellar Astrophysics (astro-ph.SR), Microwave, Flare |
| الوصف: | The analysis of narrowband drifting of type III-like structures in radio bursts dynamic spectra allows to obtain unique information about primary energy release mechanisms in solar flares. The SSRT spatially resolved images and a high spectral and temporal resolution allow direct determination not only the positions of its sources but also the exciter velocities along the flare loop. Practically, such measurements are possible during some special time intervals when the SSRT (about 5.7 GHz) is observing the flare region in two high-order fringes; thus, two 1D scans are recorded simultaneously at two frequency bands. The analysis of type III-like bursts recorded during the flare 14 Apr 2002 is presented. Using-muliwavelength radio observations recorded by SSRT, SBRS, NoRP, RSTN we study an event with series of several tens of drifting microwave pulses with drift rates in the range from -7 to 13 GHz/s. The sources of the fast-drifting bursts were located near the top of the flare loop in a volume of a few Mm in size. The slow drift of the exciters along the flare loop suggests a high pitch-anisotropy of the emitting electrons. Comment: 16 pages, 6 figures, Solar Physics, in press, 2012 |
| تدمد: | 1573-093X 0038-0938 |
| DOI: | 10.1007/s11207-012-0065-y |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c8c4398217ecf75081543a299ea8b29 https://doi.org/10.1007/s11207-012-0065-y |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8c8c4398217ecf75081543a299ea8b29 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1573093X 00380938 |
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| DOI: | 10.1007/s11207-012-0065-y |