X-ray bursts: We are performing 3-d models of the convective burning in accreted layers on neutron stars.

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sub-Chandra SNe Ia: We are studying how ignition takes place in the helium layer on low mass white dwarfs.

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merging WDs: We are modeling the final inspiral and merging of two white dwarfs as a model of SNe Ia.

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Learn more about what I do on my research page. All of this research is computationally intensive. We develop a number of codes with our collaborators to model our astrophysical systems. Our main codes are listed below.

  • Maestro

    Maestro is a low Mach number hydrodynamics code that efficiently models convective burning in stratified astrophysical flows. It is developed in collaboration with the Center for Computational Sciences and Engineering at LBNL and is freely available.

  • Castro

    Castro is a fully-compressible hydrodynamics code developed at CCSE/LBNL. We collaborate with that group on the hydrodynamics solvers in the code.

  • pyro

    pyro is a teaching code designed to be introduce students to some of the methods commonly used in astrophysical simulations. It was solvers for advection, compressible, incompressible, and low Mach number hydrodynamics, diffusion, and elliptic problems (through multigrid).

  • other codes

    I make available a number of simple codes demonstrating astronomical concepts for introductory lectures and basic computational techniques. These are available on my codes page.