NOAA AR 8210: EVOLUTION AND FLARES FROM MULTIBAND DIAGNOSTICS
NOAA AR 8210: EVOLUTION AND FLARES FROM MULTIBAND DIAGNOSTICS
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NOAA AR 8210：多频带诊断的演变和耀斑
DOI：
10.1023/a:1005284918367
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发表时间：
2000
期刊：
影响因子：
2.8
通讯作者：
W. Otruba
中科院分区：
文献类型：
--
作者：
A. Warmuth;A. Hanslmeier;M. Messerotti;A. Cacciani;P. Moretti;W. Otruba
NOAA 8210是一个在太阳活动极大期之前就显示出显着活动水平的区域。它被一个巨大的快速旋转的δ斑所控制，在1998年4月底至5月初通过盘面期间产生了几次强烈的耀斑。我们研究了AR 8210在Hα和白色光（WL）中的发展，并研究了其复杂的磁性拓扑结构的演变。在简要回顾其他主要耀斑的同时，详细研究了5月2日在SOHO/UNOPS地面支持活动期间在Kanzelhöhe太阳天文台观测到的X1.1/3B大耀斑。这一事件已被记录在全磁盘Hα和Na-D强度图，多普勒和磁图，每个时间节奏为一分钟。耀斑与CME有关，并产生了显著的地磁效应。此外，我们还指出了我们计划的火炬监测和警报系统的前景，因为在该活动中首次运行的两台新仪器（磁光滤波器和数字Hα相机）是该计划的关键组成部分。
NOAA 8210 has been a region showing a remarkable level of activity well before solar maximum. Dominated by a large, rapidly rotating δ spot, it produced several intense flares during its disk passage at the end of April–beginning of May 1998. We examine the development of AR 8210 in Hα and white light (WL) and study the evolution of its complex magnetic topology. While the other principal flares are briefly reviewed, the great X1.1/3B flare of 2 May, which was observed at Kanzelhöhe Solar Observatory during a SOHO/UVCS ground support campaign, is studied in detail. This event has been documented in full-disk Hα and Na-D intensitygrams, Dopplergrams, and magnetograms, with a time cadence of one minute each. The flare was associated with a CME and produced significant geomagnetic effects. Furthermore, we point out the perspectives for our planned Flare Monitoring and Alerting System, since the two new instruments (Magneto-Optical Filter and Digital Hα camera), which made their first operational run with the campaign, are crucial components for this program.