منابع مشابه
Radial stellar oscillations under the influence of the dynamics of the atmosphere — a one-dimensional approach I. Linear adiabatic oscillations of a special model
The dynamics of the quiet solar atmosphere are highly nonlinear. Both the standing waves of solar oscillations and acoustic waves generated in the upper convection zone become nonlinear in the atmosphere and transform into shock waves. Interactions of shock waves, the formation of contact discontinuities, and interactions of shocks with these discontinuities will occur. The strong nonlinear dyn...
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Over the past two decades, helioseismology has revolutionized our understanding of the interior structure and dynamics of the Sun. Asteroseismology will soon place this knowledge into a broader context by providing structural data for hundreds of Sun-like stars. Solar-like oscillations have already been detected from the ground in several stars, and NASA’s Kepler mission is poised to unleash a ...
متن کاملCoupling between radial and torsional oscillations in a magnetized plasma and possible stellar applications
The weakly non-linear interaction of slow magnetoacoustic and torsional Alfvén waves propagating along an unperturbed poloidal magnetic field in a stellar interior is studied in the high plasma β limit. It is shown that slow magnetoacoustic waves parametrically drive torsional modes with the half frequency and wave number. Therefore global slow magnetoacoustic waves which have a radial velocity...
متن کاملStellar Oscillations Network Group
Stellar Oscillations Network Group (SONG) is an initiative aimed at designing and building a network of 1m-class telescopes dedicated to asteroseismology and planet hunting. SONG will have 8 identical telescope nodes each equipped with a high-resolution spectrograph and an iodine cell for obtaining precision radial velocities and a CCD camera for guiding and imaging purposes. The main asterosei...
متن کاملStochastic Excitation of Stellar Oscillations
Excitation of solar oscillations is attribued to turbulent motions in the solar convective zone. It is also currently believed that oscillations of low massive stars (M < 2 M⊙) which possess an upper convective zone are stochastically excited by turbulent convection in their outer layers. A recent theoretical work (Samadi and Goupil, 2001; Samadi et al., 2001) supplements and reinforces this th...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1949
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/109.1.103