Curriculum Vitae

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Member – American Physical Society Committee on Informing the Public (2018–2020)

Technical Papers Committee – ACM/IEEE Supercomputing Conference (SC16, SC17, SC18, SC19)

Co-Chair – Nuclear Astrophysics, ASCR-NP Exascale Requirements Review (2016)

Working Group Organizer – Astrophysics Theory and Computing, Division of Nuclear Physics Town Meeting on Nuclear Astrophysics (2014)


  • stellar astrophysics
  • supernovae
  • weak interaction physics
  • nucleosynthesis
  • high-performance computing


  • PhD in Physics, 2000

    University of Tennessee

  • BS in Physics, 1991

    University of Tennessee



ExaStar is a collaboration between Berkeley Lab, Oak Ridge Lab, Argonne Lab, and Stony Brook University, and is an application development project within the DOE Exascale Computing Project.


CHIMERA is our multi-dimensional core-collapse supernova code, capable of tracking the evolution of these systems from the pre-collapse stellar stage to up to a second of evolution time after the core bounce.


Toward Exascale Astrophysics of Mergers and Supernovae: This SciDAC project aims to study the sites of R-process nucleosynthesis using realistic simualtions of core-collapse supernovae and neutron star mergers.


A collaborative effort of application development teams and staff from the OLCF Scientific Computing group, CAAR is focused on redesigning, porting, and optimizing application codes for Frontier’s hybrid CPU–GPU architecture.

Recent Publications

For a complete list, see Google Scholar or MyADS

Implications for Post-Processing Nucleosynthesis of Core-Collapse Supernova Models with Lagrangian Particles


Developing MiniApps on Modern Platforms Using Multiple Programming Models


Gravitational Wave Signatures of ab initio Two-Dimensional Core-collapse Supernova Explosion Models for 12-25 Solar Mass Stars


Near Real-time Data Analysis of Core-collapse Supernova Simulations with Bellerophon