Small-scale MHD waves in the solar chromosphere with ALMA | Juan Camilo Guevara Gómez
Rosseland Centre for Solar Physics, University of Oslo, Norway
Natural Sciences (Astrophysics and Astrononmy)
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/
Link to the European Solar Physics Online Seminars (ESPOS) webpage:
If the video contains inappropriate content, please report
the video. You will be redirected to the landing page.