MHD Waves and Coronal Seismology: an overview of recent results

Details MHD Waves and Coronal Seismology: an overview of recent results MHD Waves and Coronal Seismology: an overview of recent results

2012-02-09

arxiv.org/abs/1202.1944v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Scientific paper

Recent observations have revealed that MHD waves and oscillations are ubiquitous in the solar atmosphere, with a wide range of periods. We give a brief review of some aspects of MHD waves and coronal seismology which have recently been the focus of intense debate or are newly emerging. In particular, we focus on four topics: (i) the current controversy surrounding propagating intensity perturbations along coronal loops, (ii) the interpretation of propagating transverse loop oscillations, (iii) the ongoing search for coronal (torsional) Alfven waves and (iv) the rapidly developing topic of quasi-periodic pulsations (QPP) in solar flares.

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