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DOI | 10.1126/science.aah5412 |
On the generation of solar spicules and Alfvenic waves | |
Martinez-Sykora, J.1,2; De Pontieu, B.2,3; Hansteen, V. H.2,3; van der Voort, L. Rouppe3; Carlsson, M.3; Pereira, T. M. D.3 | |
2017-06-23 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6344页码:1269-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Norway |
英文摘要 | In the lower solar atmosphere, the chromosphere is permeated by jets known as spicules, in which plasma is propelled at speeds of 50 to 150 kilometers per second into the corona. The origin of the spicules is poorly understood, although they are expected to play a role in heating the million-degree corona and are associated with Alfvenic waves that help drive the solar wind. We compare magnetohydrodynamic simulations of spicules with observations from the Interface Region Imaging Spectrograph and the Swedish 1-m Solar Telescope. Spicules are shown to occur when magnetic tension is amplified and transported upward through interactions between ions and neutrals or ambipolar diffusion. The tension is impulsively released to drive flows, heat plasma (through ambipolar diffusion), and generate Alfvenic waves. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403881700036 |
WOS关键词 | REGION ; SIMULATION ; CORONA ; POWER |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196322 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Bay Area Environm Res Inst, Petaluma, CA 94952 USA; 2.Lockheed Martin Solar & Astrophys Lab LMSAL, Palo Alto, CA 94304 USA; 3.Univ Oslo, Inst Theoret Astrophys, POB 1029, N-0315 Oslo, Norway |
推荐引用方式 GB/T 7714 | Martinez-Sykora, J.,De Pontieu, B.,Hansteen, V. H.,et al. On the generation of solar spicules and Alfvenic waves[J]. SCIENCE,2017,356(6344):1269-+. |
APA | Martinez-Sykora, J.,De Pontieu, B.,Hansteen, V. H.,van der Voort, L. Rouppe,Carlsson, M.,&Pereira, T. M. D..(2017).On the generation of solar spicules and Alfvenic waves.SCIENCE,356(6344),1269-+. |
MLA | Martinez-Sykora, J.,et al."On the generation of solar spicules and Alfvenic waves".SCIENCE 356.6344(2017):1269-+. |
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