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Supernova Asymmetries
J. Craig Wheeler, Justyn R. Maund, Shizuka Akiyama
All core collapse supernovae are strongly aspherical. The "Bochum event," with velocity components displaced symmetrically about the principal H line, strongly suggests that SN…
Hydrodynamic and Spectral Simulations of HMXB Winds
Christopher W. Mauche, Duane A. Liedahl, Shizuka Akiyama +1
We describe preliminary results of a global model of the radiatively-driven photoionized wind and accretion flow of the high-mass X-ray binary Vela X-1. The full model combines FLA…
De-leptonization and Non-Axisymmetric Instabilities in Core Collapse Supernovae
J. Craig Wheeler, Shizuka Akiyama
The timescale of de-leptonization by neutrino loss and associated contraction of a proto-neutron star is short compared to the time to progagate a shock through the helium core of…
Magnetic Field in Supernovae
Shizuka Akiyama, J. Craig Wheeler
A relatively modest value of the initial rotation of the iron core, a period of ~ 6-31 s, will give a very rapidly rotating protoneutron star and hence strong differential rotation…