Affiliation

Instituto de Astrofísica de Canarias (IAC), Spain

Main category

Natural Sciences (Astrophysics and Astrononmy)

Caption

The solar atmosphere is filled with clusters of hot small-scale loops commonly known as Coronal Bright Points (CBPs). These ubiquitous structures stand out in the Sun by their strong X-ray and/or extreme-ultraviolet (EUV) emission for hours to days, which makes them a crucial piece when solving the solar coronal heating puzzle. Here we present a novel 3D numerical model using the Bifrost code that explains the sustained CBP heating for several hours. We find that stochastic photospheric convective motions alone significantly stress the CBP magnetic field topology, leading to important Joule and viscous heating concentrated around the CBP’s inner spine at a few megameters above the solar surface. Read more at https://espos.stream/2024/04/04/Nobrega-Siverio/ .

DOI

10.18147/smn.2024/video:363

Link this video

https://science-media.org/video/363