Mapping Convection Using Pulsating White Dwarf Stars

Details Mapping Convection Using Pulsating White Dwarf Stars Mapping Convection Using Pulsating White Dwarf Stars

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..352..261m&link_type=abstract

New Horizons in Astronomy: Frank N. Bash Symposium ASP Conference Series, Vol. 352, Proceedings of the Conference Held 16-18 Oct

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We demonstrate how pulsating white dwarfs can be used as an astrophysical laboratory for empirically constraining convection in these stars. We do this using a technique for fitting observed non-sinusoidal light curves, which allows us to recover the thermal response timescale of the convection zone (its ``depth'') as well as how this timescale changes as a function of effective temperature. We also obtain mode identifications for the pulsation modes, allowing us to use asteroseismology to study the interior structure of these stars.

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