Acoustic-gravity wave propagation characteristics in 3D radiation hydrodynamic simulations of the solar atmosphere

Abstract

There has been tremendous progress in the degree of realism of three-dimensional radiation magneto-hydrodynamic simulations of the solar atmosphere in the past decades. Four of the most frequently used numerical codes are Bifrost, CO5BOLD, MANCHA3D, and MURaM. Here we test and compare the wave propagation characteristics in model runs from these four codes by measuring the dispersion relation of acoustic-gravity waves at various heights. We find considerable differences between the various models. The height dependence of wave power, in particular of high-frequency waves, varies by up to two orders of magnitude between the models, and the phase difference spectra of several models show unexpected features, including $\pm 180^{\circ }$ phase jumps.

19 pages, 15 figures

References in corpus (7)

• The Solar Optical Telescope for the Hinode Mission: An Overview
• A Substantial Amount of Hidden Magnetic Energy in the Quiet Sun
• Numerical simulations of quiet Sun magnetism: On the contribution from a small-scale dynamo
• Penumbral structure and outflows in simulated sunspots
• On the generation of solar spicules and Alfvénic waves
• Numerical simulations of quiet Sun magnetic fields seeded by Biermann battery
• Observed local dispersion relations for magneto-acoustic-gravity waves in the Sun's atmosphere: Mapping the acoustic cut-off frequency

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• A Refined Model of Convectively-Driven Flicker in Kepler Light Curves
• On the influence of magnetic topology on the propagation of internal gravity waves in the solar atmosphere