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73 papers
Radioactive nuclei in the early Solar System: analysis of the 15 isotopes produced by core-collapse supernovae
Thomas V. Lawson, Marco Pignatari, Richard J. Stancliffe +5
Short-lived radioactive isotopes (SLRs) with half-lives between 0.1 to 100 Myr can be used to probe the origin of the Solar System. In this work, we examine the core-collapse super…
Titanium and Iron in the Cassiopeia A Supernova Remnant
Gregory S. Vance, Patrick A. Young, Christopher L. Fryer +1
Mixing above the proto-neutron star is believed to play an important role in the supernova engine, and this mixing results in a supernova explosion with asymmetries. Elements produ…
Axisymmetric Radiative Transfer Models of Kilonovae
Oleg Korobkin, Ryan Wollaeger, Christopher Fryer +9
The detailed observations of GW170817 proved for the first time directly that neutron star mergers are a major production site of heavy elements. The observations could be fit by a…
Full Transport General Relativistic Radiation Magnetohydrodynamics for Nucleosynthesis in Collapsars
Jonah M. Miller, Trevor M. Sprouse, Christopher L. Fryer +4
We model a compact black hole-accretion disk system in the collapsar scenario with full transport, frequency dependent, general relativistic radiation magnetohydrodynamics. We exam…
Full Transport Model of GW170817-Like Disk Produces a Blue Kilonova
Jonah M. Miller, Benjamin R. Ryan, Joshua C. Dolence +7
The 2017 detection of the inspiral and merger of two neutron stars in gravitational waves and gamma rays was accompanied by a quickly-reddening transient. Such a transient was pred…
Understanding the Engines and Progenitors of Gamma-Ray Bursts
Chris L. Fryer, Nicole Lloyd-Ronning, Ryan Wollaeger +5
Our understanding of the engines and progenitors of gamma-ray bursts has expanded through the ages as a broader set of diagnostics has allowed us to test our understanding of these…