592 citations · 4.9k across the 75 of their papers we have counts for
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Gamma Ray Burst Production and Supernova Signatures in Slowly Rotating Collapsars
Diego Lopez-Camara, William H. Lee, Enrico Ramirez-Ruiz
We consider accretion onto newborn black holes following the collapse of rotating massive stellar cores, at the threshold where a centrifugally supported disk gives way to nearly r…
The tightening of wide binaries in dSph galaxies through dynamical friction as a test of the Dark Matter hypothesis
X. Hernandez, William H. Lee
We estimate the timescales for orbital decay of wide binaries embedded within dark matter halos, due to dynamical friction against the dark matter particles. We derive analytical s…
What is the optimum stellar rotation rate for a collapsar?
William H. Lee
We consider low angular momentum, neutrino cooled accretion flows onto newborn black holes in the context of the collapsar model for long Gamma Ray Bursts, and find a considerable…
The Progenitors of Short Gamma-Ray Bursts
William H. Lee, Enrico Ramirez-Ruiz
Recent months have witnessed dramatic progress in our understanding of SGRBs. There is now general agreement that SGRBs can produce directed outflows of relativistic matter with a…
Forced Oscillations in Fluid Tori and Quasi-Periodic Oscillations
William H. Lee
The kilo-Hertz Quasi--Periodic Oscillations in X-ray binaries could originate within the accretion flow, and be a signature of non--linear fluid oscillations and mode coupling in s…
Accretion modes in collapsars - prospects for GRB production
William H. Lee, Enrico Ramirez-Ruiz
We explore low angular momentum accretion flows onto black holes formed after the collapse of massive stellar cores. In particular, we consider the state of the gas falling quasi-s…