期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 691, 期 2, 页码 L99-L102出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/691/2/L99
关键词
Sun: corona; Sun: flares
资金
- JAXA
- NAOJ
- STFC
- NASA
- ESA
- NSC
- Science and Technology Facilities Council [PP/E001173/1] Funding Source: researchfish
- STFC [PP/E001173/1] Funding Source: UKRI
We explore the pre-flare behavior of the corona in a three-day period building up to an X-class flare on 2006 December 13 by analyzing EUV spectral profiles from the Hinode EUV Imaging Spectrometer (EIS) instrument. We found an increase in the coronal spectral line widths, beginning after the time of saturation of the injected helicity as measured by Magara & Tsuneta. In addition, this increase in line widths (indicating nonthermal motions) starts before any eruptive activity occurs. The Hinode EIS has the sensitivity to measure changes in the buildup to a flare many hours before the flare begins.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据