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Asteroseismology of WD J004917.14−252556.81, the Most Massive Pulsating White Dwarf

  • Authors: Ozcan Caliskan, Murat Uzundag, Mukremin Kilic, Francisco C. De Gerónimo, Adam Moss, Alejandro H. Córsico, Steven G. Parsons, Ingrid Pelisoli, Gracyn Jewett, Alberto Rebassa-Mansergas, Alex J. Brown, Vikram S. Dhillon, Pierre Bergeron

Ozcan Caliskan et al 2025 The Astrophysical Journal 988 .

  • Provider: AAS Journals

Caption: Figure 8.

Average period spacings for ℓ = 1 (left panel) and ℓ = 2 (right panel) modes for ONe-core ultramassive WDs with thick H envelopes and masses ranging from 1.10 to 1.29M⊙ (colored lines). The location of WD J0049−2525 is based on the effective temperature derived by M. Kilic et al. (2023b), Teff = 13,020 ± 460 K, and the period spacings of ΔΠ = 17.56 ± 1.02 s for ℓ = 1 and ΔΠ = 9.79 ± 0.52 s for ℓ = 2 modes.

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