Name: Nitin vashishtha
Affiliation: Aryabhatta Research Institute of Observational Sciences
Conference ID : ASI2022_485
Title : Numerical simulations and forward modelling of a breakout CME
Authors : Nitin vashishtha, Vaibhav Pant, Dipankar Banerjee
Abstract Type: Poster
Abstract Category : Sun and the Solar System
Abstract : Coronal Mass Ejections(CMEs) being one of the main drivers for space weather, it becomes essential to understand their initiation and evolution in the solar corona. It is also crucial to perform numerical simulations to probe the dynamics of CMEs in the inner corona for a better understand the CME initiation and evolution in this region. We have performed the numerical simu- lations of CMEs in the Magnetohydrodynamics framework using MPI-AMRVAC in 2.5D. For the initiation, we have adopted the breakout model in which we have three magnetic arcades with alternative polarities embedded in a dipole magnetic field. In this multipolar topology, when we impose the shear stress at the solar base of one of the arcades, this sheared arcade reconnects with the neighbouring arcade and gives rise to the CME. We perform the forward modelling on this simulated data in Fe XIV and Fe XI emission lines visible in Visible Emission Line Coronagraph (VELC) on-board Aditya-L1 and estimate how line intensity, Doppler velocities, and line widths vary. The VELC will also be looking at the inner corona, so the comparison between the observation and the simulated data will help us to understand the kinematics of the CMEs.