复杂型爆发事件的特征  

Observational Characteristics of Complex-Type Solar Bursts

作　　者：刘玉英[1] 傅其骏[1] 谭程明[1] 

机构地区：[1]中国科学院太阳活动重点实验室(国家天文台),北京100012

出　　处：《天文研究与技术》2012年第4期370-373,共4页Astronomical Research & Technology

基　　金：国家自然科学基金(10921303;10873021);国家973项目(2011CB811401)资助

摘　　要：太阳射电宽带动态频谱仪1.10～2.06 GHz、2.6～3.8 GHz、5.2～7.6 GHz从2000年～2005年同时在3个频段上观测到复杂型频谱事件(45C爆发:双峰或多峰结构,单频辐射流量小于500 sfu)158个,有139个事件对应高能事件,其中对应X级耀斑3个,对应M级耀斑86个,对应C级耀斑44个。36个爆发对应发生日冕物质抛射(Coronal Mass Ejection,CME)事件,29个事件对应有II型爆发,20个事件对应IV型爆发。在76个事件中显示了丰富的毫秒级精细结构,有尖峰辐射(Spike)、鱼群结构(Fish)、斑马纹结构(Zebra)、纤维结构(Fiber)、漂移脉动结构(DPS)、准周期振荡(QPPS)、M型结构以及II、III型爆发等。举两例说明复杂爆发的观测特征。There were 158 solar bursts （45C, with two or more peaks and the single-frequency fluxes of 〈 500 s. f. u. ） recorded during 2000- 2005 with the Chinese Solar Broadband Radiospectrometer simultaneously in the frequency ranges of 1.10-2.06GHz, 2.6-3.6GHz, and 5.2-7.6GHz. Among them 139 bursts are associated with high-energy events; 3 events are with X-class flares; 86 events are with M-class flares; and 44 events are with C-class flares. There are 36, 29, and 20 events associated with CME, type II bursts, and type IV bursts, respectively. In the 76 bursts among them there are a variety of fine structures, such as spike emission, fish structures, Zebra pattern, fiber bursts, DPSs （Drift Pulsation Structures）, QPPs （Quasi Period Pulsations）, type-M structures, fast-drifting structures, and so on.

关 键 词：太阳射电频谱仪 爆发事件 观测特征 

分 类 号：P182.52[天文地球—天文学]