22–27 Sept 2025
INAF, Osservatorio Astronomico di Roma
Europe/Rome timezone

Using Solar Pore Shapes to Extract Horizontal Velocity Profiles

Not scheduled
2m
Aula Gratton (INAF, Osservatorio Astronomico di Roma)

Aula Gratton

INAF, Osservatorio Astronomico di Roma

Via Frascati, 33, 00078 Monteporzio Catone (RM)
Poster Contribution

Speaker

Jack Gillam (The University of Sheffield)

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.

Sessions Wave generation, energy transport, dissipation and heating

Authors

Jack Gillam (The University of Sheffield) Gary Verth Dr Istvan Ballai (University of Sheffield) Viktor Fedun (The University of Sheffield)

Presentation materials

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