Magneto-acoustic wave propagation and mode conversion in a magnetic solar atmosphere: comparing results from the CO5BOLD code with ray theory

TL;DR

This paper compares numerical simulations of magneto-acoustic wave propagation in a magnetic solar atmosphere using the CO5BOLD code with ray theory, focusing on mode conversion and energy fluxes.

Contribution

It demonstrates the effectiveness of the CO5BOLD code in modeling wave propagation and mode conversion, aligning well with ray theory predictions in a stratified magnetic solar atmosphere.

Findings

Good qualitative agreement between simulations and ray theory

Validation of CO5BOLD code for energy flux calculations

Analysis of wave behavior in different magnetic field orientations

Abstract

We present simulations of magneto-acoustic wave propagation in a magnetic, plane-parallel stratified solar model atmosphere, employing the CO5BOLD-code. The tests are carried out for two models of the solar atmosphere, which are similar to the ones used by Cally (2007) and Schunker & Cally (2006). The two models differ only in the orientation of the magnetic field. A qualitative comparison shows good agreement between the numerical results and the results from ray theory. The tests are done in view of the application of the present numerical code for the computation of energy fluxes of propagating acoustic waves into a dynamically evolving magnetic solar atmosphere. For this, we consider waves with frequencies above the acoustic cut-off frequency.