Speaker
Description
First Name: Sudip
Last Name: Mandal
Email Address: mandals@mps.mpg.de
Affiliation: Max Planck Institute for Solar System Research, Germany
All Authors: Sudip Mandal, Hardi Peter, Cosima Breu, Lakshmi Pradeep Chitta, Patrick Antolin, Sami K Solanki, and the EUI team
Abstract: Decayless kink oscillations are ubiquitous in solar loops. Since these oscillations do not exhibit the typical signs of decay often observed in kink oscillations driven by transient events, it is essential to identify the drivers or mechanisms powering these waves. Several candidates have been proposed, but conclusive evidence for any of them has yet to be identified. In this talk, I will present the evidence, or lack thereof, regarding the postulated wave drivers, based on high-resolution observations obtained from the Solar Orbiter spacecraft. Combining Solar Orbiter data with Atmospheric Imaging Assembly (AIA) images, I will provide a stereoscopic perspective on these oscillations, revealing a new aspect of this phenomenon. Furthermore, I will discuss how these findings compare with the results obtained from a 3D magnetohydrodynamic (MHD) self-consistent simulation of a coronal loop using MURaM. This comparison shows the necessity to identify atypical proxies, such as the wave polarization properties, that shed light on the characteristics of wave drivers and improve our understanding of the phenomena involved.