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We present a new, better-constrained asteroseismic analysis of thehelium-atmosphere (DB) white dwarf discovered in the field of view of theoriginal Kepler mission. Observations obtained over the course of two yearsyield at least seven independent modes, two more than were found in thediscovery paper for the object. With several triplets and doublets, we are ableto fix the $\ell$ and $\rm{m}$ identification of several modes beforeperforming the fitting, greatly reducing the number of assumptions we must makeabout mode identification. We find a very thin helium layer for this relativelyhot DB, which adds evidence to the hypothesis that helium diffuses outwardduring DB cooling. At least a few of the modes appear to be stable onevolutionary timescales and could allow us to obtain a measurement of the rateof cooling with monitoring of the star over the course of the next few yearswith ground-based follow-up.

Seven-Period Asteroseismic Fit of the Kepler DBV