ULTRA-NARROW NEGATIVE FLARE FRONT OBSERVED IN HELIUM-10830 USING THE 1.6m NEW SOLAR TELESCOPE
文献类型：期刊论文
| 作者 | Xu, Yan1,2; Cao, Wenda2; Ding, Mingde3; Kleint, Lucia4; Su, Jiangtao5,6; Liu, Chang1,2; Ji, Haisheng7 ; Chae, Jongchul8; Jing, Ju1,2; Cho, Kyuhyoun8
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2016-03-10 |
| 卷号 | 819期号:2 |
| 关键词 | Sun: activity Sun: chromosphere Sun: flares Sun: infrared Sun: UV radiation |
| 英文摘要 | Solar flares are sudden flashes of brightness on the Sun and are often associated with coronal mass ejections and solar energetic particles that have adverse effects on the near-Earth environment. By definition, flares are usually referred to as bright features resulting from excess emission. Using the newly commissioned 1.6. m New Solar Telescope at Big Bear Solar Observatory, we show a striking "negative" flare with a narrow but unambiguous "dark" moving front observed in He I 10830 angstrom, which is as narrow as 340 km and is associated with distinct spectral characteristics in Ha and Mg II lines. Theoretically, such negative contrast in He I 10830 angstrom can be produced under special circumstances by nonthermal electron collisions or photoionization followed by recombination. Our discovery, made possible due to unprecedented spatial resolution, confirms the presence of the required plasma conditions and provides unique information in understanding the energy release and radiative transfer in astronomical objects. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | I 10830 ANGSTROM ; HIGH-RESOLUTION OBSERVATIONS ; STELLAR FLARES ; BIG BEAR ; K LINES ; REGION ; IRIS ; SPECTROGRAPH ; ATMOSPHERE ; EMISSIONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000372305700001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/16169]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.New Jersey Inst Technol, Space Weather Res Lab, Ctr Solar Terr Res, 323 Martin Luther King Blvd, Newark, NJ 07102 USA 2.New Jersey Inst Technol, Big Bear Solar Observ, 323 Martin Luther King Blvd, Newark, NJ 07102 USA 3.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China 4.Inst 4D Technol, Fachhsch Nordwestschweiz FHNW, Bahnhofstr 6, CH-5210 Windisch, Switzerland 5.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 6.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 7.Purple Mt Observ, 2 Beijing Xi Lu, Nanjing 210008, Peoples R China 8.Seoul Natl Univ, Dept Phys & Astron, Astron Program, Seoul 151747, South Korea 9.Korea Astron & Space Sci Inst, Daedeokdae Ro 776, Daejeon 305348, South Korea |
| 推荐引用方式 GB/T 7714 | Xu, Yan,Cao, Wenda,Ding, Mingde,et al. ULTRA-NARROW NEGATIVE FLARE FRONT OBSERVED IN HELIUM-10830 USING THE 1.6m NEW SOLAR TELESCOPE[J]. ASTROPHYSICAL JOURNAL,2016,819(2). |
| APA | Xu, Yan.,Cao, Wenda.,Ding, Mingde.,Kleint, Lucia.,Su, Jiangtao.,...&Wang, Haimin.(2016).ULTRA-NARROW NEGATIVE FLARE FRONT OBSERVED IN HELIUM-10830 USING THE 1.6m NEW SOLAR TELESCOPE.ASTROPHYSICAL JOURNAL,819(2). |
| MLA | Xu, Yan,et al."ULTRA-NARROW NEGATIVE FLARE FRONT OBSERVED IN HELIUM-10830 USING THE 1.6m NEW SOLAR TELESCOPE".ASTROPHYSICAL JOURNAL 819.2(2016). |
入库方式： OAI收割
来源：紫金山天文台
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