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Cosmic Chandlery with Thermonuclear Supernovae
Alan C. Calder, Brendan K. Krueger, Aaron P. Jackson +3
Thermonuclear (Type Ia) supernovae are bright stellar explosions, the light curves of which can be calibrated to allow for use as "standard candles" for measuring cosmological dist…
Model Atmospheres for X-ray Bursting Neutron Stars
Zach Medin, Marina von Steinkirch, Alan C. Calder +3
The hydrogen and helium accreted by X-ray bursting neutron stars is periodically consumed in runaway thermonuclear reactions that cause the entire surface to glow brightly in X-ray…
A Tracer Method for Computing Type Ia Supernova Yields: Burning Model Calibration, Reconstruction of Thickened Flames, and Verification for Planar Detonations
Dean M. Townsley, Broxton J. Miles, F. X. Timmes +2
We refine our previously introduced parameterized model for explosive carbon-oxygen fusion during thermonuclear supernovae (SN Ia) by adding corrections to post-processing of recor…
Type Ia Supernova Explosions from Hybrid Carbon-Oxygen-Neon White Dwarf Progenitors
Donald E. Willcox, Dean M. Townsley, Alan C. Calder +2
Motivated by recent results in stellar evolution that predict the existence of hybrid white dwarf (WD) stars with a C-O core inside an O-Ne shell, we simulate thermonuclear (Type I…
White Dwarf Mergers on Adaptive Meshes I. Methodology and Code Verification
Max P. Katz, Michael Zingale, Alan C. Calder +3
The Type Ia supernova progenitor problem is one of the most perplexing and exciting problems in astrophysics, requiring detailed numerical modeling to complement observations of th…