137 citations · 795 across the 13 of their papers we have counts for
14 papers
Predicting asteroid material properties from a DART-like kinetic impact
Kathryn M. Kumamoto, J. Michael Owen, Megan Bruck Syal +7
NASA's Double Asteroid Redirection Test (DART) mission is the first full-scale test of the kinetic impactor method for asteroid deflection, in which a spacecraft intentionally impa…
The role of dredge-up in double white dwarf mergers
Jan E. Staff, Brandon Wiggins, Dominic Marcello +6
We present the results of an investigation of the dredge-up and mixing during the merger of two white dwarfs with different chemical compositions by conducting hydrodynamic simulat…
Shadows of our Former Companions: How the Single-Degenerate Binary Type Ia Supernova Scenario Affects Remnants
William J Gray, Cody Raskin, J. Michael Owen
Here we present three-dimensional high resolution simulations of Type Ia supernova in the presence of a non-degenerate companion. We find that the presence of a nearby companion le…
Examining the Accuracy of Astrophysical Disk Simulations With a Generalized Hydrodynamical Test Problem
Cody Raskin, J. Michael Owen
We discuss a generalization of the classic Keplerian disk test problem allowing for both pressure and rotational support, as a method of testing astrophysical codes incorporating b…
Rapid Optimal SPH Particle Distributions in Spherical Geometries For Creating Astrophysical Initial Conditions
Cody Raskin, J. Michael Owen
Creating spherical initial conditions in smoothed particle hydrodynamics simulations that are spherically conformal is a difficult task. Here, we describe two algorithmic methods f…
Type Ia Supernovae from Merging White Dwarfs II) Post-Merger Detonations
Cody Raskin, Daniel Kasen, Rainer Moll +2
Merging carbon-oxygen (CO) white dwarfs are a promising progenitor system for Type Ia supernovae (SN Ia), but the underlying physics and timing of the detonation are still debated.…
Type Ia Supernovae from Merging White Dwarfs I. Prompt Detonations
Rainer Moll, Cody Raskin, Daniel Kasen +1
Merging white dwarfs are a possible progenitor of Type Ia supernovae (SNe Ia). While it is not entirely clear if and when an explosion is triggered in such systems, numerical model…
Tidal Tail Ejection as a Signature of Type~Ia Supernovae from White Dwarf Mergers
Cody Raskin, Daniel Kasen
The merger of two white dwarfs may be preceded by the ejection of some mass in "tidal tails", creating a circumstellar medium around the system. We consider the variety of observat…
Remnants of Binary White Dwarf Mergers
Cody Raskin, Evan Scannapieco, Chris Fryer +2
We carry out a comprehensive smooth particle hydrodynamics simulation survey of double-degenerate white dwarf binary mergers of varying mass combinations in order to establish corr…
56Ni Production in Double Degenerate White Dwarf Collisions
Cody Raskin, Evan Scannapieco, Gabriel Rockefeller +3
We present a comprehensive study of white dwarf collisions as an avenue for creating type Ia supernovae. Using a smooth particle hydrodynamics code with a 13-isotope, α-chain nucle…
Spectra of Type Ia Supernovae from Double Degenerate Mergers
Chris L. Fryer, Ashley J. Ruiter, Krzysztof Belczynski +13
The merger of two white dwarfs (a.k.a. double degenerate merger) has often been cited as a potential progenitor of type Ia supernovae. Here we combine population synthesis, merger…
Prompt Ia Supernovae Are Significantly Delayed
Cody Raskin, Evan Scannapieco, James Rhoads +1
The time delay between the formation of a population of stars and the onset of type Ia supernovae (SNe Ia) sets important limits on the masses and nature of SN Ia progenitors. Here…
On Type Ia Supernovae From The Collisions of Two White Dwarfs
Cody Raskin, F. X. Timmes, Evan Scannapieco +2
We explore collisions between two white dwarfs as a pathway for making Type Ia Supernovae (SNIa). White dwarf number densities in globular clusters allow 10-100 redshift <1 collisi…
Using Spatial Distributions to Constrain Progenitors of Supernovae and Gamma Ray Bursts
Cody Raskin, Evan Scannapieco, James Rhoads +1
We carry out a comprehensive theoretical examination of the relationship between the spatial distribution of optical transients and the properties of their progenitor stars. By con…