Excitation rates of p modes: mass luminosity relation across the HR diagram
msra(2004)
摘要
We compute the rates P at which energy is injected into the p modes for a set
of 3D simulations of outer layers of stars.
We found that Pmax - the maximum in P - scales as (L/M)^s where s is the slope
of the power law, L and M are the luminosity and the mass of the 1D stellar
models associated with the simulations. The slope is found to depend
significantly on the adopted representation for the turbulent eddy-time
correlation function, chi_k. According to the expected performances of COROT,
it will likely be possible to measure Pmax as a function of L/M and to
constrain the properties of stellar turbulence as the turbulent eddy
time-correlation.
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关键词
correlation function,power law
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