TL;DR
This review summarizes recent observational advances in understanding various magnetohydrodynamic waves in solar coronal loops, highlighting their characteristics, significance for coronal seismology, and emerging research topics.
Contribution
It provides a comprehensive overview of recent observational findings on four types of MHD waves in active region coronal loops, emphasizing new and debated topics.
Findings
Identification of flare-induced slow mode oscillations
Observation of fast kink mode oscillations in coronal loops
Detection of propagating slow magnetoacoustic and kink waves
Abstract
Recent observations have revealed the ubiquitous presence of magnetohydrodynamic (MHD) waves and oscillations in the solar corona. The aim of this review is to present recent progress in the observational study of four types of wave (or oscillation) phenomena mainly occurring in active region coronal loops, including (i) flare-induced slow mode oscillations, (ii) fast kink mode oscillations, (iii) propagating slow magnetoacoustic waves, and (iv) ubiquitous propagating kink (Alfvenic) waves. This review not only comprehensively outlines various aspects of these waves and coronal seismology, but also highlights the topics that are newly emerging or hotly debated, thus can provide readers a useful guidance on further studies of their interested topics.
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