Generation and Propagation of Torsional Tube Waves in the Solar Atmosphere
Abstract
Recent observational evidence for the existence of torsional tube waves in the solar atmosphere (e.g., Bonet et al. 2008; Jess et al. 2009) has triggered theoretical work on the generation and propagation of these waves. We modify our previous theory of generation of torsional tubes waves by the solar turbulent convection and compute the resulting the wave energy spectra and fluxes. We also demonstrate that tube thickness and temperature gradients lead to the origin of cutoff frequencies for torsional tube waves. Using the cutoffs, we calculate a range of frequencies corresponding to the propagating waves and compare it to that given by the observations. We use the obtained result to discuss the role of torsional tube waves in heating of the solar atmosphere. This work is supported by NSF under grant ATM-0538278.
- Publication:
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American Astronomical Society Meeting Abstracts #215
- Pub Date:
- January 2010
- Bibcode:
- 2010AAS...21532204M