Zobrazeno 1 - 10
of 21
pro vyhledávání: '"D E Willcox"'
Publikováno v:
Physical Review D, vol 104, iss 10
Neutrino flavor instabilities have the potential to shuffle neutrinos between electron, mu, and tau flavor states, modifying the core-collapse supernova mechanism and the heavy elements ejected from neutron star mergers. Analytic methods indicate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ee11ce9777a34a4a2749a80a410c39c
https://escholarship.org/uc/item/21v220kh
https://escholarship.org/uc/item/21v220kh
For astrophysical reacting flows, operator splitting is commonly used to couple hydrodynamics and reactions. Each process operates independent of one another, but by staggering the updates in a symmetric fashion (via Strang splitting) second order ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cfc1052e24f243fc5f11c107d3e5898
http://arxiv.org/abs/2103.13193
http://arxiv.org/abs/2103.13193
Publikováno v:
Physical Review D, vol 103, iss 8
PHYSICAL REVIEW D, vol 103, iss 8
PHYSICAL REVIEW D, vol 103, iss 8
Neutrinos drive core-collapse supernovae, launch outflows from neutron star merger accretion disks, and set the ratio of protons to neutrons in ejecta from both systems that generate heavy elements in the universe. Neutrinos of different flavors inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f70187f164a5647161408e13435a2db
http://arxiv.org/abs/2101.02745
http://arxiv.org/abs/2101.02745
Autor:
D. E. Willcox, Weiqun Zhang, Max P. Katz, Kiran Eiden, Maria Barrios Sazo, Michael Zingale, Ann S. Almgren, Alice Harpole, Kevin Gott, Jean M. Sexton
Publikováno v:
SC
Astrophysical explosions such as supernovae are fascinating events that require sophisticated algorithms and substantial computational power to model. Castro and MAESTROeX are nuclear astrophysics codes that simulate thermonuclear fusion in the conte
Publikováno v:
The Astrophysical Journal, vol 887, iss 2
Author(s): Augustine, CN; Willcox, DE; Brooks, J; Townsley, DM; Calder, AC | Abstract: The creation of "hybrid" white dwarfs, made of a C-O core within an O-Ne shell has been proposed, and studies indicate that ignition in the C-rich central region m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be5db7c7a012bf783051ae1af632f680
https://escholarship.org/uc/item/9pb665j2
https://escholarship.org/uc/item/9pb665j2
Autor:
Michael Zingale, Nicole ford, K. Eiden, Y. Cavecchi, D. E. Willcox, Alice Harpole, Maximilian Katz
Publikováno v:
The Astrophysical Journal. 912:36
We continue to investigate two-dimensional laterally propagating flames in type I X-ray bursts using fully compressible hydrodynamics simulations. In the current study we relax previous approximations where we artificially boosted the flames. We now
Publikováno v:
Journal of Physics Conference Series, vol 1623, iss 1
Journal of Physics: Conference Series, vol 1623, iss 1
Journal of Physics: Conference Series, vol 1623, iss 1
Modelling long-time convective flows in the interiors of stars is extremely challenging using conventional compressible hydrodynamics codes due to the acoustic timestep limitation. Many of these flows are in the low Mach number regime, which allows u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9033bebe7d8a777eeb8f97d2ed58689
http://arxiv.org/abs/1910.12979
http://arxiv.org/abs/1910.12979
Autor:
Desmond Shangase, Michael Zingale, Alan C. Calder, D. E. Willcox, Dean M. Townsley, Christopher J. DeGrendele
Thermonuclear (type Ia) supernovae are bright stellar explosions with the unique property that the light curves can be standardized, allowing them to be used as distance indicators for cosmological studies. Many fundamental questions bout these event
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ced4d334c88949683fc7bf8911fac6c
Autor:
Yuri Cavecchi, M. P. Katz, John B. Bell, Weiqun Zhang, M. Chang, D. E. Willcox, K. Eiden, C. M. Malone, Michael Zingale, Alice Harpole, Andrew Nonaka, Ian Hawke
Publikováno v:
Zingale, M; Eiden, K; Cavecchi, Y; Harpole, A; Bell, JB; Chang, M; et al.(2018). Toward Resolved Simulations of Burning Fronts in Thermonuclear X-ray Bursts. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/1jz319t0
Journal of Physics Conference Series, vol 1225, iss 1
Journal of Physics: Conference Series
Journal of Physics: Conference Series, vol 1225, iss 1
Journal of Physics Conference Series, vol 1225, iss 1
Journal of Physics: Conference Series
Journal of Physics: Conference Series, vol 1225, iss 1
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::866a202885dff95dee25cc666ec7c342
http://www.escholarship.org/uc/item/1jz319t0
http://www.escholarship.org/uc/item/1jz319t0
Autor:
Jean M. Sexton, Alice Harpole, Weiqun Zhang, Maximilian Katz, Maria Barrios Sazo, Ann S. Almgren, John B. Bell, D. E. Willcox, Michael Zingale
Publikováno v:
Journal of Open Source Software. 5:2513