1996-2008年期间活动区与耀斑活动的特征分析  

Analysis of the Properties of Solar Active Regions and the Solar Flares during 1996-2008

作　　者：陆阳平[1,2] 赵浩峰[1] 乐贵明[2] 尹志强[3] 陈旻昊[1,2] 李仲怡 

机构地区：[1]南京信息工程大学数学与统计学院,南京210093 [2]中国气象局国家空间天气监测预警中心空间天气重点实验室,北京100081 [3]中国科学院国家天文台,北京100012

出　　处：《空间科学学报》2016年第1期12-17,共6页Chinese Journal of Space Science

基　　金：国家重大科学研究计划项目(2012CB957801);国家自然科学基金项目(41074132;41274193;41474166);质检总局行业专项(200710123)共同资助

摘　　要：在1996—2008年期间,可见日面共出现3067个活动区,其中活动区面积S满足10μh≤S≤90μh(μh为太阳半球面积的百万分之一)的活动区数量占活动区总数的58.52%,100μh≤S≤490μh的活动区数量占活动区总数的31.43%,而S≥500μh的活动区数量仅约占活动区总数的6%,S≥1000μh的活动区数量仅约占活动区总数的1%,面积为0的活动区约占活动区总数的4%.1996—2008年期间,除面积低于50μh的活动区外,不同面积活动区的数量占该年活动区总数比例的最大值通常都在太阳活动峰年之后,即相对太阳黑子数平滑月均值都有一定的延迟.在1997—2008年期间,至少能够产生一个A级耀斑的活动区数量为1408个,而在此期间,共产生了7706个C级耀斑、1141个M级耀斑和110个X级耀斑.C级耀斑在1~8A波段流量的积分值为22.711 J·m^(-2),M级耀斑在1~8 A波段流量的积分值为29.443 J·m^(-2),X级耀斑在1~8 A波段流量的积分值为36.178 J·m^(-2).第23太阳活动周期间,南半球的耀斑活动比北半球强.The total number of solar Active Regions （AR） Nt that occurred during 1996--2008 is 3067. And 58.52% of the Nt are the AR with the area satisfying the condition 10μh≤ S ≤ 90μh,31.43% of the Nt are the AR with the area satisfying the condition 100μh≤ S ≤ 490μh. The AR with area S≥ 500 #h only accounted for about 6% and the ARs with area S≥ 1000 ph only accounted for about 1% of the total AR. The AR with area being 0 accounted for 4.01%. For each year during 1996-2008, the ratio of AR with different area S to the total number of AR usually reached its maximum at the time several years after solar maximum except the AR with area S ≤ 50 ph. The number that can produce at least one solar X-ray flare during 1997-2008 is 1408. The total number of C-class flares is 7706, while the total number of M-class flare is 1141 and the total number of X-class flare is 110 during 1997-2008. The sum of time integral of X-ray flux in 1-8A produced by all C-class, M-class and X-class flares are 22.711, 29.443 and 36.178 J·m-2. The Soft X-Ray （SXR） flare activities in the southern hemisphere are stronger that in the northern hemisphere during Solar Cycle 23.

关 键 词：太阳黑子 太阳耀斑 日面活动区 

分 类 号：P353[天文地球—空间物理学]