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

Automatic detection of oscillations on Solar Orbiter EUV images using spectral techniques: Preliminary results

25 Sept 2025, 12:00
15m
Contributed Talk

Speaker

Guillem Castelló i Barceló (Universitat de les Illes Balears, Spain)

Description

Spectral (periodogram) analysis has proved effective for identifying oscillatory behavior in Hα solar filament observations. In this preliminary study, we apply recent periodogram‐based frameworks—those of Luna et al. (2022) and Castelló et al. (2025)—to extreme-ultraviolet (EUV) image sequences from the Solar Orbiter mission. Adopting a Bayesian inference approach with a red-noise background model, we will evaluate whether periodic signals can be robustly detected across the full field of view. Our primary goal is to determine the feasibility of these techniques for automatic oscillation detection and spatial characterization in EUV time sequences, thereby eliminating the need for manually placed analysis slits. The outcomes will inform the development of a systematic, data-driven pipeline for mapping solar oscillations in high-resolution EUV datasets.

Author

Guillem Castelló i Barceló (Universitat de les Illes Balears, Spain)

Co-authors

Dr Jaume Terradas Calafell (Universitat de les Illes Balears) Manuel Luna (Universitat de les Illes Balears)

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