کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1768977 | 1020251 | 2007 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The CME-productivity associated with flares from two active regions The CME-productivity associated with flares from two active regions](/preview/png/1768977.png)
We report on two flare-productive adjacent active regions (ARs), with different levels of coronal mass ejection (CME) association. AR 10039 and AR 10044 produced strong X-ray flares during their disk passages. We examined the CME association rate of X-ray flares and found it to be different between the two ARs. AR 10039 was CME-rich with 72% association with flares, while AR 10044 was CME-poor with an association rate of only 14%. CMEs from the CME-rich AR were faster and wider than the ones from the CME-poor AR. The flare activity of AR 10044 was temporally concentrated over a short interval and spatially localized over a compact area between the major sun spots. We suggest that different pre-eruption evolution and magnetic configuration in the two regions might have contributed to the difference between the two ARs.
Journal: Advances in Space Research - Volume 39, Issue 9, 2007, Pages 1467–1470