Affiliation

Rosseland Centre for Solar Physics, University of Oslo, Norway

Main category

Natural Sciences (Astrophysics and Astrononmy)

Caption

Magnetohydrodynamic (MHD) waves are thought to be one of the key mechanisms for transferring energy and momentum through the Sun’s atmosphere, hence maintaining the temperature profile of the outer atmospheric layers. Here, we have studied small-scale chromospheric bright features, exhibiting oscillations in brightness temperature, size, and horizontal velocity, in Bands 3 (∼3 mm) and 6 (∼1.2 mm) of 2 seconds cadence solar observations with ALMA, as well as in associated synthetic lines from a Bifrost simulation, degraded to match the ALMA’s spatial and temporal resolutions. In total, 486 and 235 features were analysed in the observations and simulations, respectively. See more at https://espos.stream/2022/03/17/Guevara-Gomez/

DOI

requested

Link this video

https://science-media.org/video/325