Mode Instability and a Massive, Isolated Outburst in the Pulsating White Dwarf GD 1212

We analyze a large brightening event that lasted for roughly one-half of a day in the pulsating hydrogen-atmosphere white dwarf GD 1212 during K2 Campaign 12 of the extended Kepler Space Telescope mission. For the other 80 days of K2 observations, GD 1212 exhibited a rich spectrum of long-period (∼1...

Ausführliche Beschreibung

Bibliografische Detailangaben

Hauptverfasser:	J. J. Hermes, Keaton J. Bell, Andrew H. Dublin, M. H. Montgomery, Steven D. Kawaler, Ian Clark, Zachary P. Vanderbosch, Bart H. Dunlap, P.-E. Tremblay, Paul Chote, Boris T. Gänsicke
Format:	Artigo
Sprache:	Inglês
Veröffentlicht:	IOP Publishing 2026-01-01
Schriftenreihe:	The Astrophysical Journal
Schlagworte:	White dwarf stars Non-radial pulsations Variable stars Optical bursts
Online-Zugang:	https://doi.org/10.3847/1538-4357/ae8159
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