7–11 Jul 2025
Teaching and Learning Centre (TLC)
Europe/London timezone

Using Solar Pore Shape Changes to Extract Horizontal Velocity Profiles

Not scheduled
1h 30m
Teaching and Learning Centre (TLC)

Teaching and Learning Centre (TLC)

Durham University South Road Durham DH1 3LS
Poster Magnetohydrodynamic waves in the solar atmosphere: new insights from advanced observations and modelling Magnetohydrodynamic waves in the solar atmosphere: new insights from advanced observations and modelling

Description

Solar pores unlike Sunspots are difficult to analyse, due to being much smaller in size, the absence of a penumbra and its shape evolution appearing more unstable, giving no fixed boundary of the pore. By using shape analysis tool Deformetrica created by Bone et al (2018), we can fix grid points over the shape of the pore and track the changes as it evolves over time. By doing this, we can extract the horizontal velocity profile of the pore, which we can use for various different analysis, such as combining with magnetic field and line of sight(los) velocity of the same dataset around the pore to derive the poynting flux, or potentially applying Proper Orthogonal Decomposition(POD) to verify any oscillatory behaviour.

Primary author

Jack Gillam (University of Sheffield)

Co-authors

Dr Gary Verth (University of Sheffield) Dr Istvan Ballai (University of Sheffield) Prof. Viktor Fedun (University of Sheffield)

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