منابع مشابه
The evolution of AGB stars with convective overshoot
The influence of extended convective mixing (overshoot) on asymptotic giant branch stellar evolution is investigated in detail. The extended mixing is treated timedependently, and the efficiency declines exponentially with the geometric distance from the convective boundary. It has been considered at all convective boundaries, including the He-flash convection zone in the intershell region whic...
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15 صفحه اولOn the convective envelope of AGB stars
We discuss evolutionary computations investigating the efficiency of the convective ”drift” which should affect the location of the inner boundary of the convective envelope in cool giant stars. We find that the drift is at the work in structures undergoing the second dredge up, accelerating the sinking of the envelope into the inner He rich layers and producing smaller C-O cores at the onset o...
متن کاملConvective and non-convective mixing in AGB stars
We review the current state of modeling convective mixing in AGB stars. The focus is on results obtained through multi-dimensional hydrodynamic simulations of AGB convection, both in the envelope and the unstable He-shell. Using two different codes and a wide range of resolutions and modeling assumptions we find that mixing across convective boundaries is significant for He-shell flash convecti...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1940
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/100.5.362