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Volume 315 - The Golden Age of Cataclysmic Variables and Related Objects IV (GOLDEN 2017) - Classical Novae, Recurrent Novae and Nova-Like Stars
Recurrent novae and long-term evolution of mass-accreting white dwarfs – toward the accurate mass retention efficiency
M. Kato,* I. Hachisu, H. Saio
*corresponding author
Full text: pdf
Pre-published on: 2018 July 11
Published on: 2018 September 13
The mass growth rate of mass-accreting white dwarfs (WDs) is a key factor in binary evolution
scenarios toward Type Ia supernovae. Many authors have reported very different WD mass increasing
rates. In this review, we clarify the reasons for such divergence, some of which come
from a lack of numerical techniques, usage of old opacities, different assumptions for binary configurations,
inadequate initial conditions, and unrealistic mass-loss mechanisms. We emphasize
that these assumptions should be carefully chosen in calculating the long-term evolution of accreting
WDs. Importantly, the mass-loss mechanism is the key process determining the mass
retention efficiency: the best approach involves correctly incorporating the optically thick wind
because it is supported by the multiwavelength light curves of novae.
Open Access
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