Correlation between CME and Flare Parameters (with and without Type II Bursts)
Correlation between CME and Flare Parameters (with and without Type II Bursts)
复制标题
CME 和耀斑参数之间的相关性（有和没有 II 型爆发）
DOI：
10.1007/s11207-011-9752-3
复制
发表时间：
2011
期刊：
影响因子：
2.8
通讯作者：
B. Vršnak
中科院分区：
文献类型：
--
作者：
A. Shanmugaraju;Y. Moon;B. Vršnak
日冕物质抛射和耀斑是太阳上产生激波的两种高能现象。我们的主要目的是研究与II型射电暴相关或不相关的日冕物质抛射和耀斑的物理性质之间的关系。我们考虑了在1997年1月至2000年12月期间观测到的290个与GOES x射线耀斑有关的SOHO/LASCO日冕物质抛射。研究了两组耀斑与日冕物质抛射之间的关系：i)有公制型ii和ii)没有公制型ii。物理性质，如上升时间，持续时间和耀斑的强度和宽度，速度和日冕物质抛射的加速度被考虑在内。我们研究了日冕物质抛射和耀斑之间的能量关系和时间关系。首先考虑每组的所有项目，然后分别考虑每组的肢体项目。虽然在有ii型的情况下，耀斑的时间特征与CME性质之间存在关系，但在所有没有ii型的情况下，这种关系都不存在。在所有研究的关系中，耀斑持续时间与日冕物质抛射特性之间的相关性比其他关系更为显著。此外，在有II型事件中发现的耀斑强度与CME速度之间的关系在所有没有II型事件的情况下都不存在。然而，当单独研究没有II型事件（耀斑与日冕物质抛射之间的时间窗减小）时，我们发现了能量关系和时间关系。
CMEs and flares are the two energetic phenomena on the Sun responsible for generating shocks. Our main aim is to study the relation between the physical properties of CMEs and flares associated with and without type II radio bursts. We considered a set of 290 SOHO/LASCO CMEs associated with GOES X-ray flares observed during the period from January 1997 to December 2000. The relationship between the flares and CMEs is examined for the two sets i) with metric-type IIs and ii) without metric-type IIs. Physical properties such as rise time, duration, and strength of the flares and width, speed, and acceleration of CMEs are considered. We examined the energy relationship and temporal relationship between the CMEs and flares. First, all the events in each group were considered, and then the limb events in each group were considered separately. While there is a relationship between the temporal characteristics of flares and CME properties in the case of with-type IIs, it is absent in the case of all without-type IIs. Among all the relations studied, the correlation between flare duration and CME properties is found to be highly significant compared to the other relations. Also, the relationship between flare strength and CME speed found in the with-type II events is absent in the case of all without-type II events. However, when the limb without-type II events (with reduced time window between flare and CME) are studied separately, we found the energy relationship and the temporal relationship.