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Hybrid C-O-Ne White Dwarfs as Progenitors of Diverse SNe Ia
Pavel Denissenkov, James Truran, Falk Herwig +5
When carbon is ignited off-center in a CO core of a super-AGB star, its burning in a convective shell tends to propagate to the center. Whether the C flame will actually be able to…
The primordial and evolutionary abundance variations in globular-cluster stars: a problem with two unknowns
Pavel Denissenkov, Don VandenBerg, David Hartwick +3
We demonstrate that among the potential sources of the primordial abundance variations of the proton-capture elements in globular-cluster stars proposed so far, such as the hot-bot…
Dark Stars: Improved Models and First Pulsation Results
Tanja Rindler-Daller, Michael H. Montgomery, Katherine Freese +2
We use the stellar evolution code MESA to study dark stars. Dark stars (DSs), which are powered by dark matter (DM) self-annihilation rather than by nuclear fusion, may be the firs…
Hybrid C-O-Ne white dwarfs as progenitors of type Ia supernovae: dependence on Urca process and mixing assumptions
P. Denissenkov, J. W. Truran, F. Herwig +5
When carbon is ignited off-centre in a CO core of a super-AGB star, its burning in a convective shell tends to propagate to the centre. Whether the C flame will actually be able to…
Angular momentum transport within evolved low-mass stars
Matteo Cantiello, Christopher Mankovich, Lars Bildsten +2
Asteroseismology of 1.0-2.0 Msun red giants by the Kepler satellite has enabled the first definitive measurements of interior rotation in both first ascent red giant branch (RGB) s…