Study of Flare Energy Release Using Events with Numerous Type III-like Bursts in Microwaves
文献类型:期刊论文
作者 | Meshalkina, N. S.1; Altyntsev, A. T.1; Zhdanov, D. A.1; Lesovoi, S. V.1; Kochanov, A. A.1; Yan, Y. H.2; Tan, C. M.2 |
刊名 | SOLAR PHYSICS
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出版日期 | 2012-10-01 |
卷号 | 280期号:2页码:537-549 |
关键词 | Solar flares Radio bursts Microwave emission Dynamic spectrum Drifting bursts |
英文摘要 | The analysis of narrowband drifting of type III-like structures in radio bursts dynamic spectra allows one to obtain unique information about the primary energy release mechanisms in solar flares. The SSRT (Siberian Solar Radio Telescope) spatially resolved images and its high spectral and temporal resolution allow for direct determination not only of the source positions but also of the exciter velocities along the flare loop. Practically, such measurements are possible during some special time intervals when SSRT is observing the flare region in two high-order fringes near 5.7 GHz; thus, two 1D brightness distributions are recorded simultaneously at two frequency bands. The analysis of type III-like bursts recorded during the flare 14 April 2002 is presented. Using multiwavelength radio observations recorded by the SSRT, the Huairou Solar Broadband Radio Spectrometer (SBRS), the Nobeyama Radio Polarimeters (NoRP), and the Radio Solar Telescope Network (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(-1). The sources of the fast-drifting bursts were located near the top of a 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. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000309865800020 |
源URL | [http://ir.bao.ac.cn/handle/114a11/6324] ![]() |
专题 | 国家天文台_太阳物理研究部 |
作者单位 | 1.Inst Solar Terr Phys SB RAS, Irkutsk 664033, Russia 2.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China |
推荐引用方式 GB/T 7714 | Meshalkina, N. S.,Altyntsev, A. T.,Zhdanov, D. A.,et al. Study of Flare Energy Release Using Events with Numerous Type III-like Bursts in Microwaves[J]. SOLAR PHYSICS,2012,280(2):537-549. |
APA | Meshalkina, N. S..,Altyntsev, A. T..,Zhdanov, D. A..,Lesovoi, S. V..,Kochanov, A. A..,...&Tan, C. M..(2012).Study of Flare Energy Release Using Events with Numerous Type III-like Bursts in Microwaves.SOLAR PHYSICS,280(2),537-549. |
MLA | Meshalkina, N. S.,et al."Study of Flare Energy Release Using Events with Numerous Type III-like Bursts in Microwaves".SOLAR PHYSICS 280.2(2012):537-549. |
入库方式: OAI收割
来源:国家天文台
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