Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Malone, C. M."'
Autor:
Zingale, M., Eiden, K., Cavecchi, Y., Harpole, A., Bell, J. B., Chang, M., Hawke, I., Katz, M. P., Malone, C. M., Nonaka, A. J., Willcox, D. E., Zhang, W.
We discuss the challenges of modeling X-ray bursts in multi-dimensions, review the different calculations done to date, and discuss our new set of ongoing simulations. We also describe algorithmic improvements that may help in the future to offset so
Externí odkaz:
http://arxiv.org/abs/1810.04720
Autor:
Zingale, M., Almgren, A. S., Sazo, M. G. Barrios, Beckner, V. E., Bell, J. B., Friesen, B., Jacobs, A. M., Katz, M. P., Malone, C. M., Nonaka, A. J., Willcox, D. E., Zhang, W.
Publikováno v:
Journal of Physics: Conference Series, 2018, volume 1031, 012024
We describe the AMReX suite of astrophysics codes and their application to modeling problems in stellar astrophysics. Maestro is tuned to efficiently model subsonic convective flows while Castro models the highly compressible flows associated with st
Externí odkaz:
http://arxiv.org/abs/1711.06203
Our understanding of stars and their fates is based on coupling observations to theoretical models. Unlike laboratory physicists, we cannot perform experiments on stars, but rather must patiently take what nature allows us to observe. Simulation offe
Externí odkaz:
http://arxiv.org/abs/1510.05061
Autor:
Zand, J. J. M. in 't, Altamirano, D., Ballantyne, D. R., Bhattacharyya, S., Brown, E. F., Cavecchi, Y., Chakrabarty, D., Chenevez, J., Cumming, A., Degenaar, N., Falanga, M., Galloway, D. K., Heger, A., José, J., Keek, L., Linares, M., Mahmoodifar, S., Malone, C. M., Méndez, M., Miller, M. C., Paerels, F. B. S., Poutanen, J., Rózanska, A., Schatz, H., Serino, M., Strohmayer, T. E., Suleimanov, V. F., Thielemann, F. -K., Watts, A. L., Weinberg, N. N., Woosley, S. E., Yu, W., Zhang, S., Zingale, M.
This is a White Paper in support of the mission concept of the Large Observatory for X-ray Timing (LOFT), proposed as a medium-sized ESA mission. We discuss the potential of LOFT for the study of thermonuclear X-ray bursts on accreting neutron stars.
Externí odkaz:
http://arxiv.org/abs/1501.02776
We perform the first detailed three-dimensional simulation of low Mach number convection preceding thermonuclear ignition in a mixed H/He X-ray burst. Our simulations include a moderate-sized, approximate network that captures hydrogen and helium bur
Externí odkaz:
http://arxiv.org/abs/1410.5796
Type I X-ray Bursts (XRBs) are thermonuclear explosions of accreted material on the surfaces of a neutron stars in low mass X-ray binaries. Prior to the ignition of a subsonic burning front, runaway burning at the base of the accreted layer drives co
Externí odkaz:
http://arxiv.org/abs/1404.6286
Autor:
Malone, C. M., Nonaka, A., Woosley, S. E., Almgren, A. S., Bell, J. B., Dong, S., Zingale, M.
We present high-resolution, full-star simulations of the post-ignition phase of Type Ia supernovae using the compressible hydrodynamics code Castro. Initial conditions, including the turbulent velocity field and ignition site, are imported directly f
Externí odkaz:
http://arxiv.org/abs/1309.4042
A leading model for Type Ia supernovae (SNe Ia) begins with a white dwarf near the Chandrasekhar mass that ignites a degenerate thermonuclear runaway close to its center and explodes. In a series of papers, we shall explore the consequences of igniti
Externí odkaz:
http://arxiv.org/abs/1305.2433
We assess the robustness of a low Mach number hydrodynamics algorithm for modeling helium shell convection on the surface of a white dwarf in the context of the sub-Chandrasekhar model for Type Ia supernovae. We use the low Mach number stellar hydrod
Externí odkaz:
http://arxiv.org/abs/1212.4380
We present multidimensional simulations of the early convective phase preceding ignition in a Type I X-ray burst using the low Mach number hydrodynamics code, MAESTRO. A low Mach number approach is necessary in order to perform long-time integration
Externí odkaz:
http://arxiv.org/abs/1012.0609