The period ratio P_1/P_2 of torsional Alfvén waves with steady flows in spicules
arXiv:1603.05370 · doi:10.1007/s10509-016-2716-1
Abstract
The aim here is to model the standing torsional oscillations in solar spicules in the presence of density stratification, magnetic field expansion, and steady flows. By implementing cylindrical geometry, the eigenfrequencies, eigenfunctions, and the period ratio P_1/P_2 of these waves is obtained for finite plasma-beta. The shifts created by the steady flow justifies the divergence of the observed period ratio for the first and second periods from the number 2.
arXiv commentAccepted for publication in Astrophysics and Space Science
References in corpus (15)
- Alfven Waves in the Lower Solar Atmosphere
- Oscillations and waves in solar spicules
- Propagating waves along spicules
- Observation of kink waves in solar spicules
- Doppler shift oscillations in solar spicules
- Observation of coronal loop torsional oscillation
- Suzaku observations of the HMXB 1A 1118-61
- The Effect of Twisted Magnetic Field on the Period Ratio P_1/P_2 of Nonaxisymmetric MHD Waves
- Observation of standing kink waves in solar spicules
- The effects of twisted magnetic field on coronal loops oscillations and dissipation
- Torsional Alfven waves in stratified and expanding magnetic flux tubes
- Observation of kink waves and their reconnection-like origin in solar spicules
- Evidences to the pulse like origin of double spicules based on Hinode/SOT observations
- Observation of the period ratio P_1/P_2 of transversal oscillations in solar macro-spicules
- Torsional Alfven waves and the period ratio P_1/P_2 in spicules