Bronson Messer is a Distinguished Scientist and Director of Science at the Oak Ridge Leadership Computing Facility (OLCF) at ORNL. He is also Joint Faculty Professor in the Department of Physics & Astronomy at the University of Tennessee. His primary research interests are related to the explosion mechanisms and phenomenology of supernovae (both thermonuclear and core-collapse), especially neutrino transport and signatures, dense matter physics, and the details of turbulent nuclear combustion.

Dr. Messer is a member of the American Astronomical Society, the American Physical Society, and the American Association for the Advancement of Science.


2022 — R&D 100 Award – Flash-X (software category)

2020 — Oak Ridge Postdoctoral Association Mentor of the Year


A. Mezzacappa, P. Marronetti, R. E. Landfield, E. J. Lentz, R. D. Murphy, W. Raphael Hix, J. A. Harris, S. W. Bruenn, J. M. Blondin, O. E. B. Messer, J. Casanova, and L. L. Kronzer. “Core collapse supernova gravitational wave emission for progenitors of 9.6, 15, and 25 solar masses.” Phys. Rev. D 107, 043008 (2023).
A. Sieverding, P. G. Waldrop, J. A. Harris, W. R. Hix, E. J. Lentz, S. W. Bruenn, and O. E. B. Messer. “Tracer Particles for Core-collapse Supernova Nucleosynthesis: The Advantages of Moving Backward.” The Astrophysical Journal 950, 34 (2023).
A. Dubey, K. Weide, J. O’Neal, A. Dhruv, S. Couch, J. A. Harris, T. Klosterman, R. Jain, J. Rudi, B. Messer, M. Pajkos, J. Carlson, R. Chu, M. Wahib, S. Chawdhary, P. M. Ricker, D. Lee, K. Antypas, K. M. Riley, C. Daley, M. Ganapathy, F. X. Timmes, D. M. Townsley, M. Vanella, J. Bachan, P. M. Rich, S. Kumar, E. Endeve, W. R. Hix, A. Mezzacappa, and T. Papatheodore. “Flash-X: A multiphysics simulation software instrument.” SoftwareX 19, 101168 (2022).
F. Rivas, J. A. Harris, W. R. Hix, and O. E. B. Messer. “The Impact of Resolution on Double-detonation Models for Type Ia Supernovae.” The Astrophysical Journal 937, 2 (2022).
A. Mezzacappa, E. Endeve, O. E. B. Messer, and S. W. Bruenn. “Physical, numerical, and computational challenges of modeling neutrino transport in core-collapse supernovae.” Living Reviews in Computational Astrophysics 6, 4 (2020).
E. O’Connor, R. Bollig, A. Burrows, S. Couch, T. Fischer, H.-T. Janka, K. Kotake, E. J. Lentz, M. Liebendoerfer, O. E. B. Messer, A. Mezzacappa, T. Takiwaki, and D. Vartanyan. “Global comparison of core-collapse supernova simulations in spherical symmetry.” Journal of Physics G: Nuclear and Particle Physics 45, 104001 (2018).
O. E. B. Messer, E. D’Azevedo, J. Hill, W. Joubert, M. Berrill, and C. Zimmer. “MiniApps derived from production HPC applications using multiple programing models.” The International Journal of High Performance Computing Applications 32, 582–593 (2018).