3 papers
astro-ph.SR2021
R Coronae Borealis Star Evolution: Simulating 3D Merger Events to 1D Stellar Evolution Including Large Scale Nucleosynthesis
Bradley Munson, Emmanouil Chatzopoulos, Juhan Frank +4
R Coronae Borealis (RCB) stars are rare hydrogen-deficient carbon-rich variable supergiants thought to be the result of dynamically unstable white dwarf mergers. We attempt to mode…
astro-ph.SR2020
Modeling R Coronae Borealis Stars: Effects of He-Burning Shell Temperature and Metallicity
Courtney L. Crawford, Geoffrey C. Clayton, Bradley Munson +2
The R Coronae Borealis (RCB) stars are extremely hydrogen-deficient carbon stars which produce large amounts of dust, causing sudden deep declines in brightness. They are believed…
astro-ph.SR2018
The Age of the Galactic Stellar Halo from Gaia White Dwarfs
Mukremin Kilic, P. Bergeron, Kyra Dame +3
We use 156 044 white dwarf candidates with significant parallax measurements from the Gaia mission to measure the velocity dispersion of the Galactic disc; $(σ_U,σ_V,σ_W)…