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Fig. 1.

image

Comparison between the optimal seismic model obtained by Giammichele et al. (2018) for KIC 08626021 which does not incorporate neutrino cooling (black dotted lines), and an equivalent model using the same parameters and chemical structure that includes this effect (red solid curves). Top panel: composition stratification and surface parameters characterizing the two models. Lower panels: from top to bottom, profiles as functions of fractional mass depth (logq) of the temperature (T), luminosity (Lr/L*), logarithm of the squared Brunt-Väisälä, and ℓ = 1 Lamb frequencies (logN2 and ), and relative difference of the squared Brunt-Väisälä frequencies of the two models (E(N2), as defined by Timmes et al. 2018). An evolution model matching the properties of KIC 08626021 is also shown (blue dashed lines) for comparison with profiles obtained from the new white-dwarf static models incorporating neutrino cooling.

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