# Torsional Alfven waves in stratified and expanding magnetic flux tubes

Source: [Torsional Alfven waves in stratified and expanding magnetic flux tubes](<https://www.sota2.com/research/paper/68fa2a521e209131ce83c6df>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T13:28:29.118Z

Authors: K. Karami, K. Bahari

Published: 2011-02-08T16:15:32.000Z

## Abstract

The effects of both density stratification and magnetic field expansion on torsional Alfven waves in magnetic flux tubes are studied. The frequencies, the period ratio P1/P2 of the fundamental and its first-overtone, and eigenfunctions of torsional Alfven modes are obtained. Our numerical results show that the density stratification and magnetic field expansion have opposite effects on the oscillating properties of torsional Alfven waves.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1102.1638>)

[PDF](<https://arxiv.org/pdf/1102.1638.pdf>)