Diagnosing the Source Region of a Solar Burst on 26 September 2011 by Using Microwave Type-III Pairs
文献类型：期刊论文
| 作者 | Tan, B. L.1,2 ; Karlicky, M.3; Meszarosova, H.3; Kashapova, L.4; Huang, J.1,2; Yan, Y.1,2; Kontar, E. P.5
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| 刊名 | SOLAR PHYSICS
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| 出版日期 | 2016-10-01 |
| 卷号 | 291期号:8页码:2407-2418 |
| 关键词 | Sun: microwave emission Sun: magnetic reconnection Sun: flares |
| 英文摘要 | We report a peculiar and interesting train of microwave Type-III pair bursts in the impulsive rising phase of a solar flare on 26 September 2011. The observations include radio spectrometers at frequencies of 0.80 -aEuroe2.00 GHz from the OndA (TM) ejov radiospectrograph in the Czech Republic (ORSC), hard X-ray from the Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) and Gamma-Ray Burst Monitor onboard the Fermi Space Telescope (Fermi/GRB), EUV images from the Sun Watcher using APS detectors and image Processing instrument onboard the Project for Onboard Autonomy 2 (SWAP/PROBA2), and magnetograms from the Helioseismic and Magnetic Imager onboard the Solar Dynamic Observatory (SDO/HMI). By using a recently developed method (Tan et al., Res. Astron. Astrophys. 16, 82, 2016a), we diagnosed the plasma density, temperature, plasma-, magnetic field near the source region, the energy of energetic electrons, and the distance between the acceleration region and the emission start sites of Type-III bursts. From the diagnostics, we find that i) The plasma density, temperature, magnetic field, and the distance between the acceleration region and the emission start sites have almost no obvious variations during the period of Type-III pair trains, while the energy of electrons has an obvious peak value that is consistent with the hard X-ray emission. ii) The plasma- is much higher than unity, showing a highly dynamic process near the emission start site of Type-III bursts. iii) Although the reversed-slope Type-III branches drift more slowly by one order of magnitude than that of the normal Type-IIIs, the related descending and ascending electrons still could have energy of the same order of magnitude. These facts indicate that both the ascending and descending electrons are possibly accelerated by a similar mechanism and in a small source region. These diagnostics can help us to understand the physics in the source region of solar bursts. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | MAGNETIC RECONNECTION ; CHROMOSPHERIC EVAPORATION ; RADIO-EMISSION ; ELECTRON-BEAMS ; X-RAY ; RHESSI ; IMAGER ; GENERATION ; SIGNATURES ; DYNAMICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000385207200011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6863]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Acad Sci Czech Republic, Inst Astron, CS-25165 Ondrejov, Czech Republic 4.Inst Solar Terr SB RAS, Lermontov St 126a, Irkutsk 6640333, Russia 5.Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland |
| 推荐引用方式 GB/T 7714 | Tan, B. L.,Karlicky, M.,Meszarosova, H.,et al. Diagnosing the Source Region of a Solar Burst on 26 September 2011 by Using Microwave Type-III Pairs[J]. SOLAR PHYSICS,2016,291(8):2407-2418. |
| APA | Tan, B. L..,Karlicky, M..,Meszarosova, H..,Kashapova, L..,Huang, J..,...&Kontar, E. P..(2016).Diagnosing the Source Region of a Solar Burst on 26 September 2011 by Using Microwave Type-III Pairs.SOLAR PHYSICS,291(8),2407-2418. |
| MLA | Tan, B. L.,et al."Diagnosing the Source Region of a Solar Burst on 26 September 2011 by Using Microwave Type-III Pairs".SOLAR PHYSICS 291.8(2016):2407-2418. |
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来源：国家天文台
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