Search Results - "Fryer, C.L."

Relativistic opacities for astrophysical applications by Fontes, C.J., Fryer, C.L., Hungerford, A.L., Hakel, P., Colgan, J., Kilcrease, D.P., Sherrill, M.E.

“…We report on the use of the Los Alamos suite of relativistic atomic physics codes to generate radiative opacities for the modeling of astrophysically relevant…”
Get full text

Forming massive black holes through stellar collapse: Observational diagnostics by Fryer, C.L., Heger, A.

“…Massive black holes are believed to reside in the centers of many galaxies. Their seeds, 1000–100 000 solar mass black holes are believed to have formed during…”
Get full text

Detailed temperature diagnostic studies for Radishock and COAX experiments by Fryer, C.L., Wood, S., Coffing, S.X., Robey, H.F., Fontes, C.J., Johns, H., Kozlowski, P., Urbatsch, T., Lanier, N.E., Meyerhofer, D.D., Byvank, T.

“…Spectral diagnostics provide a powerful probe of high energy-density physics experiments. By shining an x-ray source on a target, absorption features can be…”
Get full text

Designing radiation transport tests: Simulation-driven uncertainty-quantification of the COAX temperature diagnostic by Fryer, C.L., Diaw, A., Fontes, C.J., Hungerford, A.L., Kline, J., Johns, H., Lanier, N.E., Wood, S., Urbatsch, T.

“…One of the difficulties in developing accurate numerical models of radiation flow in a coupled radiation-hydrodynamics setting is accurately modeling the…”
Get full text

A temperature profile diagnostic for radiation waves on OMEGA-60 by Johns, H.M., Fryer, C.L., Wood, S.R., Fontes, C.J., Kozlowski, P.M., Lanier, N.E., Liao, A., Perry, T.S., Morton, J.W., Brown, C.R.D., Schmidt, D.W., Cardenas, T., Urbatsch, T.J., Hakel, P., Colgan, J., Coffing, S., Cowan, J., Capelli, D., Goodwin, L.A., Quintana, T.E., Hamilton, C., Fierro, F., Wilson, C., Randolph, R.B., Donovan, P., Sedillo, T., Gonzales, R., Sherrill, M.E., Douglas, M.R., Garbett, W.J., Hager, J.D., Kline, J.

“…Predicting and matching radiation wave propagation with computational models has proven difficult. Information provided by experiments studying radiation flow…”
Get full text

Uncertainties in radiation flow experiments by Fryer, C.L., Dodd, E., Even, W., Fontes, C.J., Greeff, C., Hungerford, A., Kline, J., Mussack, K., Tregillis, I., Workman, J.B., Benstead, J., Guymer, T.M., Moore, A.S., Morton, J.

“…Although the fundamental physics behind radiation and matter flow is understood, many uncertainties remain in the exact behavior of macroscopic fluids in…”
Get full text

Asymmetries in core-collapse supernovae from maps of radioactive [sup.44]Ti in Cassiopeia A by Grefenstette, B.W, Harrison, F.A, Boggs, S.E, Reynolds, S.P, Fryer, C.L, Madsen, K.K, Wik, D.R, Zoglauer, A, Ellinger, C.I, Alexander, D.M, An, H, Barret, D, Christensen, F.E, Craig, W.W, Forster, K, Giommi, P, Hailey, C.J, Hornstrup, A, Kaspi, V.M, Kitaguchi, T, Koglin, J.E, Mao, P.H, Miyasaka, H, Mori, K, Perri, M, Pivovaroff, M.J, Puccetti, S, Rana, V, Stern, D, Westergaard, N.J, Zhang, W.W

“…Asymmetry is required by most numerical simulations of stellar core-collapse explosions, but the form it takes differs significantly among models. The spatial…”
Get full text

The unusual γ-ray burst GRB101225A from a helium star/neutron star merger at redshift 0.33 by Thone, C.C, de Ugarte Postigo, A, Fryer, C.L, Page, K.L, Gorosabe, J, Aloy, M.A, Perley, D.A, Kouveliotou, C, Janka, H.T, Mimica, P, Racusin, J.L, Krimm, H, Cummings, J, Oates, S.R, Holland, S.T, Siegel, M.H, De Pasquale, M, Sonbas, E, Im, M, Park, W.-k, Kann, D.A, Guziy, S, Garcia, L. Hernandez, Llorente, A, Bundy, K, Choi, C, Jeong, H, Korhonen, H, Kubanek, P, Lim, J, Moskvitin, A, Munoz-Darias, T, Pak, S, Parrish, I

Get full text

The Dynamics and Outcomes of Rapid Infall onto Neutron Stars by Fryer, Chris L., Benz, Willy, Herant, Marc

Get full text

Unified One-Dimensional Simulations of Gamma-Ray Line Emission from Type Ia Supernovae by Milne, P. A, Hungerford, A. L, Fryer, C. L, Evans, T. M, Urbatsch, T. J, Boggs, S. E, Isern, J, Bravo, E, Hirschmann, A, Kumagai, S, Pinto, P. A, The, L.-S

“…The light curves of Type Ia supernovae (SNe Ia) are powered by gamma rays emitted by the decay of radioactive elements such as super(56)Ni and its decay…”
Get full text

Core-collapse model effects on nucleosynthesis by Fryer, C.L.

“…Although simulations of the core-collapse supernova mechanism have not yet converged on a final answer, much of the intuition gained from these simulations can…”
Get full text

Changing the r-Process Paradigm by Fryer, C.L., Hungerford, A.L., Timmes, F.X.

“…Supernovae are now known to be far from symmetric. At the very least, rotation and convective instabilities alter the spherically symmetric picture producing…”
Get full text

Nucleosynthetic Signatures of Asymmetric Supernovae - Lessons from 1-dimensional Explosions by Hungerford, A.L., Fryer, C.L., Timmes, F.X., McGhee, K.

“…We review the evidence for asymmetries in explosions, and in particular, the nucleosynthetic signatures from these asymmetries. To guide our intuition for…”
Get full text

Iron Opacity and the Pulsar of SN 1987A by Fryer, Chris L, Colgate, Stirling A, Pinto, Philip A

Get full text

Evolution and nucleosynthesis of very massive primordial stars by Heger, A., Baraffe, I., Fryer, C.L., Woosley, S.E.

Get full text

The Space Simulator: Modeling the Universe from Supernovae to Cosmology by Warren, Michael S., Fryer, Chris L., Goda, M. Patrick

“…The Space Simulator is a 294-processor Beowulf cluster with theoretical peak performance just below 1.5 Teraflop/s. It is based on the Shuttle XPC SS51G mini…”
Get full text