2001A&A...376..708M

Query : 2001A&A...376..708M

2001A&A...376..708M - Astronomy and Astrophysics, volume 376, 708-712 (2001/9-3)

The effect of time-dependent random mass density field on frequencies of solar sound waves.

MURAWSKI K., NOCERA L. and MEDREK M.

Abstract (from CDS):

The effect of a time-dependent random mass density field on the frequencies and amplitudes of solar p-modes approximated as sound waves is considered by analytical perturbative means and numerical simulations for one-dimensional hydrodynamic equations. The analytical results, which are worked out for a Gaussian spectrum of the random mass fluctuations, show frequency increase and amplitude amplification, in agreement with numerical simulations.

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Journal keyword(s): convection - Sun: oscillations - turbulence

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