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Stochastic Seismic Emission from Acoustic Glories in New Active Regions of cycle 24

Auteur

Donea Alina

Institution

School of Mathematical Sciences

Theme

Local helioseismology
Auteur(s) supplémentaire(s)Marie Newington
Institution(s) supplémentaire(s)Monash University

Abstract

We analyse the high-frequency power excess surrounding two active regions that occurred in January 2010. The most intense seismic emitters observed in these halos tend to form strings in non-magnetic regions, sometimes marking the borders of weak magnetic regions and the separation between weak magnetic regions of opposite polarity. This study compares the temporal character of seismic emission from acoustic glories with that from the quiet Sun. The magnitudes of the halos and its seismic structure allow us to make predictions of its behaviour and compare the data with present theoretical models.
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