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dc.contributor.author | Nagakura, Hiroki | en |
dc.contributor.author | Sumiyoshi, Kohsuke | en |
dc.contributor.author | Yamada, Shoichi | en |
dc.contributor.alternative | 長倉, 洋樹 | ja |
dc.date.accessioned | 2014-11-18T05:47:45Z | - |
dc.date.available | 2014-11-18T05:47:45Z | - |
dc.date.issued | 2014-10-01 | - |
dc.identifier.issn | 0067-0049 | - |
dc.identifier.uri | http://hdl.handle.net/2433/191192 | - |
dc.description.abstract | We propose a novel numerical method for solving multi-dimensional, special relativistic Boltzmann equations for neutrinos coupled with hydrodynamics equations. This method is meant to be applied to simulations of core-collapse supernovae. We handle special relativity in a non-conventional way, taking account of all orders of v/c. Consistent treatment of the advection and collision terms in the Boltzmann equations has been a challenge, which we overcome by employing two different energy grids: Lagrangian remapped and laboratory fixed grids. We conduct a series of basic tests and perform a one-dimensional simulation of core-collapse, bounce, and shock-stall for a 15 M ☉ progenitor model with a minimum but essential set of microphysics. We demonstrate in the latter simulation that our new code is capable of handling all phases in core-collapse supernova. For comparison, a non-relativistic simulation is also conducted with the same code, and we show that they produce qualitatively wrong results in neutrino transfer. Finally, we discuss a possible incorporation of general relativistic effects into our method. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Astronomical Society | en |
dc.rights | © 2014. The American Astronomical Society. | en |
dc.subject | hydrodynamics | en |
dc.subject | neutrinos | en |
dc.subject | supernovae: general | en |
dc.title | THREE-DIMENSIONAL BOLTZMANN HYDRO CODE FOR CORE COLLAPSE IN MASSIVE STARS. I. SPECIAL RELATIVISTIC TREATMENTS | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.ncid | AA00553297 | - |
dc.identifier.jtitle | The Astrophysical Journal Supplement Series | en |
dc.identifier.volume | 214 | - |
dc.identifier.issue | 2 | - |
dc.relation.doi | 10.1088/0067-0049/214/2/16 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 16 | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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