this is for holding javascript data
Matteo Cantiello edited Stellar evolution calculations.tex
over 10 years ago
Commit id: bb0e8e5623906371942772e2bf66b31c76f5d992
deletions | additions
diff --git a/Stellar evolution calculations.tex b/Stellar evolution calculations.tex
index af1df7f..2f0317d 100644
--- a/Stellar evolution calculations.tex
+++ b/Stellar evolution calculations.tex
...
%the presence of magnetic fields can lead to efficient transport of angular momentum through magnetic torques. In radiative zones the presence of %magnetic fields has been discussed to explain the final rotation rate of compact remnants \citep[both white dwarfs and neutron stars,][]%{Heger_Langer_Woosley_2000,larends_Yoon_Heger_Herwig_2008}.
We chose an initial metallicity of $Z=0.02$ with a mixture taken from \citet{Asplund:2005}. We adopt the OPAL opacity tables \citep{Iglesias:1996} accounting for the carbon- and oxygen- enhanced opacities during helium burning \citep[Type 2 OPAL,][]{Iglesias:1993}.
Solid body rotation is set at the zero age main sequence (ZAMS). Convective regions are calculated using the mixing length theory (MLT) in the \citet{Henyey:1965} formulation with $\alphaMLT=1.6$. Transport of angular momentum in convective regions is accounted for using the resulting MLT diffusion coefficient (turbulent diffusivity), which is generally very high and leads to rigid rotation in convective zones.
The boundaries of convective regions are determined using the Ledoux criterion. Semiconvection is accounted for in the Langer prescription \citep{Langer:1983,Langer:1985} with an efficiency $\alphasc=$0.003.
A step function overshooting extends for 0.2 pressure scale heights
the mixing region beyond the convective boundary during core H-burning. %MC: Check if it's also extending core He-burning