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As examples I here consider double-mode pulsators, solar-like oscillations and 6 Scuti stars. The ongoing expansion in the observational efforts in this area may be expected to lead to increasingly detailed tests of stellar evolution theory.
Pulsating stars are entities that experience a periodic, driven, expansion/contraction cycle in their outer layers – this leads to concurrent variation of the star's luminosity.
Timeline f he Uiverse ast0703 | Cosmology 1: Timeline of the Universe (fact sheet) developed for the Department of Education WA ... Current theories can’t describe the Universe during the time between the : Big Bang and 10-43: s (Planck era) because the Universe was dominated by
ABSTRACT Observed periods of pulsating stars provide information about the properties of the stars. As examples I here consider double-mode pul-sators, solar-like oscillations and 6 Scuti stars. The ongoing expansion in the observational efforts in this area may be expected to lead to increasingly detailed tests of stellar evolution theory.
However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button. Observed periods of pulsating stars provide information about the properties of the stars. As examples I here consider double-mode pulsators, solar-like oscillations and δ Scuti stars.
We start the discussion presenting the general basic equations for stellar oscillations. Then we discuss general properties of adiabatic pulsations and possible excitation mechanisms for stellar pulsations. And finally we mention briefly the effect of rotation on the pulsation frequencies.
The pulsating Universe theory, a variation of the Big Bang theory, in which the Universe goes through successive periods of expansion and contraction.
