Meredith L. Rawls edited figures/mesastar1/caption.tex  almost 10 years ago

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\label{fig:mesastar} Evolution models from MESAstar for 0.9, 1.2, 1.5, and 2 $M_{\s}$ $M_{\odot}$  stars. The top panel shows the evolution tracks on a traditional Hertzsprung-Russell diagram while the bottom panel shows the same tracks in the central temperature/central density ($T_c - \rho_c$) plane. The solid red point is the location of each star on the zero-age main sequence, and the metallicity of all stars is set at $Z = 0.02$. In the bottom panel, the He core flash and subsequent evolution of the C/O core is shown. The dashed blue and heavy gray lines show two different constant electron degeneracies, and the dashed red line is a line of constant pressure relevant to the He core flash. Figure from \citet{pax11}.