Transient induced MHD oscillations : A tool to probe the solar active regions

Details Transient induced MHD oscillations : A tool to probe the solar active regions Transient induced MHD oscillations : A tool to probe the solar active regions

2011-10-04

arxiv.org/abs/1110.0705v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 2 figures, to be appear in the Proc. of the 1st Asian-Pacific Solar Phys. Meeting

Scientific paper

Solar transients and eruptive phenomena which are ubiquitous in the solar atmosphere, can shed new light to the understanding of the outstanding problems like coronal heating and the solar wind acceleration. Observations in the entire electromagnetic spectrum of such dynamical processes of large and small-scale transient/eruptive events, with highly dynamic magnetic field configuration, and energetic particles, provide crucial information about the plasma processes at mega-Kelvin temperature embedded in a complex magnetic field, and also energy build-up/energy-release processes, taking place in such events. One of the most important phenomenological aspects of solar eruptive phenomena is the induced magnetohydrodynamic (MHD) waves generated during these energetic processes, which carry a potential signature to probing the solar active regions. In this paper, we briefly review the recent trends of the transient (e.g., flares) induced quasi-periodic oscillations in the solar atmosphere and discuss their implications in diagnosing the solar active regions, providing the clue to understanding local plasma dynamics and heating.

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