Abstract Details


Name: Yogesh Kumar Maurya
Affiliation: Udaipur Solar Observatory/Physical Research Laboratory, India
Conference ID: TVS202510188
Title: Evolution of magnetic topology of active region AR13664 producing many X-class flares and coronal mass ejections
Authors and Co-Authors: Ramit Bhattacharyya
Abstract Type: Contributory Presentation
Abstract: Magnetic topology provides a powerful framework to quantify the Sun’s magnetic field and to investigate the dynamics of magnetic field lines underlying solar transients across both large and small scales. The evolution of specific topological features---such as three-dimensional (3D) nulls, separators, and flux ropes---can drive eruptive phenomena including solar flares, jets, and particle acceleration. While recent research has advanced our understanding of how magnetic topology evolves to trigger such events, many aspects remain unresolved. In this work, we examine the evolution of magnetic topology, along with the triggering and driving mechanisms of eruptive events originating from active region AR 13664, which produced numerous X-class flares and coronal mass ejections during its lifetime. The goal is achieved by combining different observations of magnetic topology based on photospheric magnetic vector magnetogram and its non-force free field extrapolations clubbed with different numerical tools which quantify the topology, MHD simulations and Atmospheric Imaging Assembly observations at different wavelengths. The study provides new insights into the mechanisms governing solar transients and contribute toward improving their predictability.