论文标题
冠状间间歇泉部位的磁性特性揭示的复发太阳活性区域喷气机的触发机制
The Trigger Mechanism of Recurrent Solar Active Region Jets Revealed by the Magnetic Properties of a Coronal Geyser Site
论文作者
论文摘要
太阳活动区域喷气机是从嵌入黑子半月区域中的磁性位点触发的小规模的血浆喷发。复发喷气机的多个触发机制正在争论中。来自SDO-HMI观测值的矢量磁场数据用于分析在极端紫外线观测值中鉴定为“冠状间歇泉”中鉴定出的多产光电构型，该配置触发了一组至少10个经常性的太阳能活动区域喷气机。我们专注于解释旨在理解控制射流喷发的过程的小型耀斑位点的磁场。我们对SDO-HMI产品进行自定义重新处理，包括歧义和不确定性估计。我们仔细检查了光球磁结构的配置和动力学。通过分析光球磁垂直场来描述磁性构型，以识别该过程负责驱动喷气喷发。我们报告说，这两个广泛争议的磁触发过程，即取消磁通量和磁通量出现，似乎是按照案例造成我们集合中每次喷发的情况的负责。我们发现，10架喷气机中有4件是由于消除通量而引起的，而其余的则显然不是，并且更有可能是由于出现的出现。
Solar active region jets are small-scale collimated plasma eruptions that are triggered from magnetic sites embedded in sunspot penumbral regions. Multiple trigger mechanisms for recurrent jets are under debate. Vector magnetic field data from SDO-HMI observations are used to analyze a prolific photospheric configuration, identified in extreme ultraviolet observations as a `Coronal Geyser', that triggered a set of at least 10 recurrent solar active region jets. We focus on interpreting the magnetic fields of small-scale flaring sites aiming to understand the processes that govern recurrent jet eruptions. We perform a custom reprocessing of the SDO-HMI products, including disambiguation and uncertainty estimation. We scrutinized the configuration and dynamics of the photospheric magnetic structures. The magnetic configuration is described via the analysis of the photospheric magnetic vertical fields, to identify the process is responsible for driving the jet eruptions. We report that the two widely debated magnetic trigger processes, namely magnetic flux cancellation and magnetic flux emergence, appear to be responsible on a case by case basis for generating each eruption in our set. We find that 4 of 10 jets were due to flux cancellation while the rest were clearly not, and were more likely due to flux emergence.
