Modelling MHD slow body modes in solar pores and sunspot umbrae with light bridges.

Funder	Science and Technology Facilities Council
Recipient Organization	University of Sheffield
Country	United Kingdom
Start Date	Sep 30, 2022
End Date	Mar 30, 2026
Duration	1,277 days
Number of Grantees	2
Roles	Student; Supervisor
Data Source	UKRI Gateway to Research
Grant ID	`2745742`

Grant Description

In this project the approximation of Aldhafeeri et al. (ApJ, 2022) to simplify the numerical modelling of MHD slow body modes will be used to calculate the eigenmodes of pores and sunspot umbrae with light bridges using using an implicitly restarted Arnoldi method.

The modelling will fully take into account the irregular cross-sectional shape of observed magnetic waveguides and allow the background magnetic field strength, pressure, density and temperature to vary in the plane of the photosphere to capture the realstic structure of light bridges. This research is most timely due to now fully operational status of the 4m Daniel K.

Inouye Solar Telescope, the most powerful solar telescope ever built.