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Gabriel M. Rockefeller

Gabriel Rockefeller

Email
Phone (505) 667-8105

Expertise

Scientific computing

High performance computing

Parallel computing

Education

Ph.D., Physics, The University of Arizona, 2006.

B.S., Physics, Massachusetts Institute of Technology, 2000.

 

LANL Positions

Scientist, Lagrangian Codes, 2016-present.

Scientist, Computational Physics and Methods, 2008-2016.

Director's Postdoctoral Fellow, Computational Physics and Methods, 2006-2008.

Graduate Research Assistant, Theoretical Astrophysics, 2002-2006.

 

Awards

LAAP Award in recognition of outstanding contributions to the Enabling Architectures Project, 2014.

ADX LAAP Award for the CCS Jayenne team response in providing essential capabilities to complete a NNSA 90-day study, 2013.

LAAP Award for successful completion of the ASC L2 milestone “Case Study of In Situ Data Analysis in ASC Integrated Codes”, 2013.

Defense Programs Award of Excellence for sustained excellence in Eulerian Applications Project development, 2011.

Defense Programs Award of Excellence for launch of the Full System Common Model, 2010.

 

Publications

  1. M. Pignatari et al. "NuGrid Stellar Data Set. I. Stellar Yields from H to Bi for Stars with Metallicities Z = 0.02 and Z = 0.01". ApJS 225, 24 (Aug. 2016), p. 24.
  2. S. Diehl et al. “Generating Optimal Initial Conditions for Smoothed Particle Hydrodynamics Simulations”. PASA 32 (Dec. 2015), e048.
  3. M. A. Cleveland et al. “Momentum Deposition in Curvilinear Coordinates”. Joint International Conference on Mathematics and Computation (M&C), Supercomputing in Nuclear Applications (SNA) and the Monte Carlo (MC) Method. (Apr. 19–23, 2015). Nashville, TN, Apr. 23, 2015.
  4. L. F. A. Teodoro et al. “A New Suite of Hydrodynamical Simulations of the Origin of the Obliquity of Uranus”. Lunar and Planetary Science Conference. Vol. 46. Lunar and Planetary Inst. Technical Report. Mar. 2015, p. 2916.
  5. J. Sexton et al. “A case study of nucleosynthesis in multi-dimensional supernova simulations”. American Astronomical Society Meeting Abstracts. Vol. 225. Jan. 2015, #140.30.
  6. C. C. Joggerst et al. “Cross-code comparisons of mixing during the implosion of dense cylindrical and spherical shells”. J. Comp. Phys. 275 (Oct. 2014), pp. 154–173.
  7. L. F. A. Teodoro et al. “A Ten Million SPH Particle Simulation of the Origin of Obliquity of Uranus”. Lunar and Planetary Science Conference. Vol. 45. Lunar and Planetary Inst. Technical Report. Mar. 2014, p. 2542.
  8. J. M. Patchett et al. "LANL CSSE L2: Case Study of In Situ Data Analysis in ASC Integrated Codes". Los Alamos National Laboratory, Aug. 21, 2013.
  9. P. R. Woodward et al. “Simulating Turbulent Mixing from Richtmyer-Meshkov and Rayleigh-Taylor Instabilities in Converging Geometries using Moving Cartesian Grids”. NECDC 2012 Proceedings. (Oct. 22–26, 2012). Livermore, CA, Feb. 13, 2013.
  10. C. I. Ellinger et al. “3D Simulations of Supernovae into the Young Remnant Phase”. American Astronomical Society Meeting Abstracts #221. Vol. 221. Jan. 2013, #214.06.
  11. E. Scannapieco et al. “Constraining Type Ia Supernova Progenitors”. IAU Symposium. Ed. by R. Di Stefano, M. Orio, and M. Moe. Vol. 281. Jan. 2013, pp. 275–279.
  12. M. Pignatari et al. “The 12C + 12C Reaction and the Impact on Nucleosynthesis in Massive Stars”. ApJ 762, 31 (Jan. 2013), p. 31.
  13. C. L. Fryer et al. “Gamma-ray Bursts from Stellar Collapse”. ADTSC Science Highlights. Ed. by Kathy Pallis. Los Alamos, NM, 2012.
  14. C. C. Joggerst et al. “Mixing in Converging Flows”. ADTSC Science Highlights. Ed. by Kathy Pallis. Los Alamos, NM, 2012.
  15. T. J. Urbatsch et al. “Research and Development in the Jayenne Implicit Monte Carlo Project”. ADTSC Science Highlights. Ed. by Kathy Pallis. Los Alamos, NM, 2012.
  16. P. A. Young et al. “Structure Formation and Characterization in Supernova Explosions”. Death of Massive Stars: Supernovae and Gamma-Ray Bursts. Vol. 279. IAU Symposium. Sept. 2012, pp. 429–430.
  17. C. I. Ellinger et al. “A Case Study of Small-scale Structure Formation in Three-dimensional Supernova Simulations”. ApJ 755, 160 (Aug. 2012), p. 160.
  18. P. Ramaprabhu et al. “The late-time dynamics of the single-mode Rayleigh-Taylor instability”. Physics of Fluids 24.7 (July 2012), p. 074107.
  19. C. Massimi et al. “Resonance neutron-capture cross sections of stable magnesium isotopes and their astrophysical implications”. Phys. Rev. C 85.4, 044615 (Apr. 2012), p. 044615.
  20. M. E. Bennett et al. “The effect of 12C +12C rate uncertainties on the evolution and nucleosynthesis of massive stars”. MNRAS 420 (Mar. 2012), pp. 3047–3070.
  21. C. Raskin et al. “Remnants of Binary White Dwarf Mergers”. ApJ 746, 62 (Feb. 2012), p. 62.
  22. C. I. Ellinger et al. “Formation and Initial Evolution of Rayleigh-Taylor Clumps in the Ejecta of Supernova Simulations”. American Astronomical Society Meeting Abstracts #219. Vol. 219. Jan. 2012, #203.02.
  23. J.-C. Passy et al. “Simulating the Common Envelope Phase of a Red Giant Using Smoothed-particle Hydrodynamics and Uniform-grid Codes”. ApJ 744, 52 (Jan. 2012), p. 52.
  24. C. L. Fryer et al. “Nucleosynthesis in the Universe, Understanding 44Ti”. ADTSC Science Highlights. Ed. by Kathy Pallis. Los Alamos, NM, 2011.
  25. J.-C. Passy et al. “Simulations of the Common Envelope Interaction Between a Red Giant Branch Star and Low-Mass Companions”. Evolution of Compact Binaries. Ed. by L. Schmidtobreick, M. R. Schreiber, and C. Tappert. Vol. 447. Astronomical Society of the Pacific Conference Series. Sept. 2011, p. 107.
  26. F. Herwig et al. “Convective-reactive Proton-12C Combustion in Sakurai’s Object (V4334 Sagittarii) and Implications for the Evolution and Yields from the First Generations of Stars”. ApJ 727, 89 (Feb. 2011), p. 89.
  27. C. I. Ellinger et al. “Development of Structure in Supernova Simulations From the Explosion out to Late Times”. American Astronomical Society Meeting Abstracts #217. Vol. 43. Bulletin of the American Astronomical Society. Jan. 2011, #423.05.
  28. P. R. Woodward et al. “Simulating Rayleigh-Taylor (RT) instability using PPM hydrodynamics @Scale on Roadrunner”. NECDC 2010 Proceedings. (Oct. 18– 22, 2010). Los Alamos, NM, Jan. 5, 2011.
  29. C. L. Fryer et al. “Modeling Progenitors and Spectra from White Dwarf Collisions: Thermonuclear and Core-Collapse Supernovae”. ADTSC Science Highlights. Ed. by Suzanne King and Kathy Pallis. Los Alamos, NM, 2010.
  30. T. M. Kelley et al. “Using Roadrunner to Model Shock Breakout in Supernovae and National Ignition Facility Experiments”. ADTSC Science Highlights. Ed. by Suzanne King and Kathy Pallis. Los Alamos, NM, 2010.
  31. M. E. Bennett et al. “The effect of 12C + 12C rate uncertainties on the weak s-process component”. Nuclei in the Cosmos 2010.
  32. C. Ellinger et al. “Delivery of Supernova Material to the ISM through Ejecta Knots”. Nuclei in the Cosmos 2010.
  33. K. Mahadevan Muthuraman et al. “Revised Froude number for Rayleigh-Taylor flow with secondary instabilities”. APS Division of Fluid Dynamics Meeting Abstracts. Nov. 2010, A6.
  34. C. Raskin et al. “56Ni Production in Double-degenerate White Dwarf Collisions”. ApJ 724 (Nov. 2010), pp. 111–125.
  35. M. E. Bennett et al. “The effect of 12C + 12C rate uncertainties on s-process yields”. Journal of Physics Conference Series 202.1, 012023 (Jan. 2010), p. 012023.
  36. C. L. Fryer et al. “Modeling Emission from Supernovae: Preparation for the Joint Dark Energy Mission”. ADTSC Science Highlights. Ed. by Suzanne King and Kathy Pallis. Los Alamos, NM, 2009.
  37. T. J. Urbatsch et al. “Jayenne Implicit Monte Carlo Project: Y2008 Improvements”. ADTSC Science Highlights. Ed. by Suzanne King and Kathy Pallis. Los Alamos, NM, 2009.
  38. C.-k. Chan et al. “MHD Simulations of Accretion onto Sgr A*: Quiescent Fluctuations, Outbursts, and Quasiperiodicity”. ApJ 701 (Aug. 2009), pp. 521–534.
  39. P. A. Young et al. “Finding Tracers for Supernova Produced 26Al”. ApJ 699 (July 2009), pp. 938–947.
  40. T. Fragos et al. “Understanding Compact Object Formation and Natal Kicks. II. The Case of XTE J1118 + 480”. ApJ 697 (June 2009), pp. 1057–1070.
  41. C. L. Fryer, G. Rockefeller, and P. A. Young. “Studying Gamma-Ray Burst Progenitors under the NASA Swift Guest Investigator Program”. ADTSC Science Highlights. Ed. by Suzanne King and Kathy Pallis. Los Alamos, NM, 2008.
  42. S. Diehl et al. “NuGrid: Nuclear Burning in 3-D Double Degenerate Merger Simulations”. Nuclei in the Cosmos (NIC X). 2008.
  43. C. Fryer et al. “Nucleosynthesis from Supernovae as a Function of Explosion Energy from NuGrid”. Nuclei in the Cosmos (NIC X). 2008.
  44. F. Herwig et al. “Nucleosynthesis simulations for a wide range of nuclear production sites from NuGrid”. Nuclei in the Cosmos (NIC X). 2008.
  45. R. Hirschi et al. “NuGrid: s process in massive stars”. Nuclei in the Cosmos (NIC X). 2008.
  46. A. Hungerford et al. “Trends in 56Ni and 44Ti Synthesis in Core-Collapse Supernovae from NuGrid”. Nuclei in the Cosmos (NIC X). 2008.
  47. G. Magkotsios et al. “Ti44 and Ni56 in core-collapse supernovae”. Nuclei in the Cosmos (NIC X). 2008.
  48. M. Pignatari et al. “Complete nucleosynthesis calculations for low-mass stars from NuGrid”. Nuclei in the Cosmos (NIC X). 2008.
  49. G. Rockefeller et al. “Nucleosynthetic Yields from Gamma-Ray Bursts”. Nuclei in the Cosmos (NIC X). 2008.
  50. P. Young et al. “Spatial Distribution of Nucleosynthesis Products in Cassiopeia A: Comparison Between Observations and 3D Explosion Models”. Nuclei in the Cosmos (NIC X). 2008.
  51. C. L. Fryer, A. L. Hungerford, and G. Rockefeller. “Supernova Explosions: Understanding Mixing”. International Journal of Modern Physics D 16 (2007), pp. 941–981.
  52. C. L. Fryer et al. “Constraints on Type Ib/c Supernovae and Gamma-Ray Burst Progenitors”. PASP 119 (Nov. 2007), pp. 1211–1232.
  53. C. L. Fryer et al. “Probing the Density in the Galactic Center Region: Wind-blown Bubbles and High-Energy Proton Constraints”. ApJ 659 (Apr. 2007), pp. 389–406.
  54. G. M. Rockefeller. “A comprehensive study of hydrodynamic processes at the Galactic center”. PhD thesis. The University of Arizona, USA, 2006.
  55. A. L. Hungerford, G. Rockefeller, and C. L. Fryer. “Neutrino signals from stellar collapse: Comparing GRBs to SNe”. Nuovo Cimento B Serie 121 (Oct. 2006), pp. 1327–1330.
  56. C. L. Fryer, G. Rockefeller, and P. A. Young. “The Environments around Long-Duration Gamma-Ray Burst Progenitors”. ApJ 647 (Aug. 2006), pp. 1269– 1285.
  57. C. L. Fryer, G. Rockefeller, and M. S. Warren. “SNSPH: A Parallel Three-dimensional Smoothed Particle Radiation Hydrodynamics Code”. ApJ 643 (May 2006), pp. 292–305.
  58. P. A. Young et al. “Constraints on the Progenitor of Cassiopeia A”. ApJ 640 (Apr. 2006), pp. 891–900.
  59. C. L. Fryer et al. “The Sgr B2 X-Ray Echo of the Galactic Center Supernova Explosion that Produced Sgr A East”. ApJ 638 (Feb. 2006), pp. 786–796.
  60. C. L. Fryer et al. “Open Issues in Core-Collapse Supernovae - Progenitors and 3-Dimensional Simulations”. Open Issues in Core Collapse Supernova Theory. Ed. by A. Mezzacappa and G. M. Fuller. Dec. 2005, pp. 136–155.
  61. A. L. Hungerford, C. L. Fryer, and G. Rockefeller. “Gamma Rays from Single-Lobe Supernova Explosions”. ApJ 635 (Dec. 2005), pp. 487–501.
  62. G. Rockefeller, C. L. Fryer, and F. Melia. “Spin-induced Disk Precession in Sagittarius A*”. ApJ 635 (Dec. 2005), pp. 336–340.
  63. G. Rockefeller et al. “The X-Ray Ridge Surrounding Sagittarius A* at the Galactic Center”. ApJ 635 (Dec. 2005), pp. L141–L144.
  64. G. Rockefeller et al. “Diffuse X-Rays from the Arches and Quintuplet Clusters”. ApJ 623 (Apr. 2005), pp. 171–180.
  65. G. Rockefeller et al. “Diffuse X-Rays from the Inner 3 Parsecs of the Galaxy”. ApJ 604 (Apr. 2004), pp. 662–670.