The evolution of solar active regions towards flares and coronal mass ejections and the role of electric currents

太阳活动区域向耀斑和日冕物质抛射的演化以及电流的作用

• 批准号: 466524561
• 负责人: Dr. Ioannis Kontogiannis, Ph.D.
• 金额: --
• 依托单位: Forschungsschwerpunkt Kosmische Magnetfelder
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/466524561?language=en
• 关键词: evolution; solar; active; regions; towards

The project will study the evolution of active regions and the development of the complicated magnetic configurations that produce flares and coronal mass ejections, utilizing high-quality observations along with techniques and tools developed for data analysis and space weather prediction. During the past decade, these phenomena were under intense scrutiny, mainly for three reasons: (1) As the main drivers of space weather, they can have, potentially, severe consequences on space-borne and ground-based infrastructure, even affecting daily space-technology-based activities. (2) Comprising the most energetic and dramatic effects of our solar system, their study can help understand fundamental processes in the solar atmosphere and, by extension, in other stars as well. (3) Recent advances in instrumentation and techniques enabled constant monitoring of the Sun, with space-borne instruments and state-of-the-art, ground-based, telescopes. However, there are still open questions regarding the origin and development of the electric currents, which are involved in energy storage in active regions, and those characteristics that will allow us to differentiate between quiet, flaring, and eruptive active regions. Motivated by these questions, this project aims to contribute not only to a deeper understanding of fundamental processes but also to practical aspects of solar eruption prediction.

该项目将利用高质量观测沿着为数据分析和空间气象预测开发的技术和工具，研究活动区的演变和产生耀斑和日冕物质抛射的复杂磁结构的发展。在过去十年中，这些现象受到了密切关注，主要原因有三：（1）作为空间气象的主要驱动因素，它们可能对天基和地基基础设施造成严重后果，甚至影响日常的空间技术活动。(2)它们包含了我们太阳系中最具活力和戏剧性的影响，它们的研究可以帮助理解太阳大气层中的基本过程，进而也可以帮助理解其他恒星的基本过程。(3)仪器和技术方面的最新进展使得能够利用空间仪器和最先进的地面望远镜对太阳进行持续监测。然而，关于电流的起源和发展仍然存在一些悬而未决的问题，这些问题涉及活动区域的能量储存，以及那些使我们能够区分安静，燃烧和爆发活动区域的特征。受这些问题的启发，该项目旨在不仅有助于更深入地了解基本过程，而且有助于太阳喷发预测的实际方面。