Validation of asteroseismic fitting with the new white dwarf evolution code
Abstract
The new version of the White Dwarf Evolution Code (Bischoff-Kim & Montgomery <xref rid="r3" ref-type="bibr">2018</xref>) overcomes limitations of earlier versions by utilizing MESA modules for the equations of state and opacities, now allowing regions of the model with a mix of helium, carbon, and oxygen. This single improvement allows us to almost exactly replicate models output by other stellar evolution codes. Armed with this new capability, we use as a star to fit, a hydrogen atmosphere white dwarf model from the La Plata group (using the LPCODE). We present results of fitting different subsets of periods for that model. This allows us some validation of our fitting methods, knowing exactly what properties we should be recovering in our best fit model.
- Publication:
-
White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution
- Pub Date:
- 2020
- DOI:
- 10.1017/S1743921320001027
- Bibcode:
- 2020IAUS..357..114K
- Keywords:
-
- stars: interiors;
- stars: oscillations (including pulsations);
- stars: white dwarfs