Matches in SemOpenAlex for { <https://semopenalex.org/work/W3103216516> ?p ?o ?g. }
- W3103216516 endingPage "124" @default.
- W3103216516 startingPage "124" @default.
- W3103216516 abstract "We present the first 3D simulation of the last minutes of oxygen shell burning in an 18 solar mass supernova progenitor up to the onset of core collapse. A moving inner boundary is used to accurately model the contraction of the silicon and iron core according to a 1D stellar evolution model with a self-consistent treatment of core deleptonization and nuclear quasi-equilibrium. The simulation covers the full solid angle to allow the emergence of large-scale convective modes. Due to core contraction and the concomitant acceleration of nuclear burning, the convective Mach number increases to ~0.1 at collapse, and an l=2 mode emerges shortly before the end of the simulation. Aside from a growth of the oxygen shell from 0.51 to 0.56 solar masses due to entrainment from the carbon shell, the convective flow is reasonably well described by mixing length theory, and the dominant scales are compatible with estimates from linear stability analysis. We deduce that artificial changes in the physics, such as accelerated core contraction, can have precarious consequences for the state of convection at collapse. We argue that scaling laws for the convective velocities and eddy sizes furnish good estimates for the state of shell convection at collapse and develop a simple analytic theory for the impact of convective seed perturbations on shock revival in the ensuing supernova. We predict a reduction of the critical luminosity for explosion by 12--24% due to seed asphericities for our 3D progenitor model relative to the case without large seed perturbations." @default.
- W3103216516 created "2020-11-23" @default.
- W3103216516 creator A5035138469 @default.
- W3103216516 creator A5056149980 @default.
- W3103216516 creator A5061104637 @default.
- W3103216516 creator A5085822196 @default.
- W3103216516 date "2016-12-12" @default.
- W3103216516 modified "2023-10-11" @default.
- W3103216516 title "THE LAST MINUTES OF OXYGEN SHELL BURNING IN A MASSIVE STAR" @default.
- W3103216516 cites W1493880006 @default.
- W3103216516 cites W1560515057 @default.
- W3103216516 cites W1878301732 @default.
- W3103216516 cites W1964942307 @default.
- W3103216516 cites W1965480387 @default.
- W3103216516 cites W1967858187 @default.
- W3103216516 cites W1971213984 @default.
- W3103216516 cites W1977849798 @default.
- W3103216516 cites W1978692199 @default.
- W3103216516 cites W1991412923 @default.
- W3103216516 cites W1993014671 @default.
- W3103216516 cites W1997572907 @default.
- W3103216516 cites W2006124034 @default.
- W3103216516 cites W2012508632 @default.
- W3103216516 cites W2014612100 @default.
- W3103216516 cites W2019590087 @default.
- W3103216516 cites W2025874547 @default.
- W3103216516 cites W2025893469 @default.
- W3103216516 cites W2029131328 @default.
- W3103216516 cites W2030483871 @default.
- W3103216516 cites W2031418798 @default.
- W3103216516 cites W2034990709 @default.
- W3103216516 cites W2044839096 @default.
- W3103216516 cites W2054993336 @default.
- W3103216516 cites W2055325669 @default.
- W3103216516 cites W2061179643 @default.
- W3103216516 cites W2062443669 @default.
- W3103216516 cites W2063437365 @default.
- W3103216516 cites W2068792026 @default.
- W3103216516 cites W2068929656 @default.
- W3103216516 cites W2073945818 @default.
- W3103216516 cites W2076068263 @default.
- W3103216516 cites W2077310516 @default.
- W3103216516 cites W2078859216 @default.
- W3103216516 cites W2081566810 @default.
- W3103216516 cites W2085607839 @default.
- W3103216516 cites W2087372193 @default.
- W3103216516 cites W2089249153 @default.
- W3103216516 cites W2091312969 @default.
- W3103216516 cites W2095734730 @default.
- W3103216516 cites W2098813469 @default.
- W3103216516 cites W2099388067 @default.
- W3103216516 cites W2105375538 @default.
- W3103216516 cites W2112909127 @default.
- W3103216516 cites W2115842144 @default.
- W3103216516 cites W2117807691 @default.
- W3103216516 cites W2119893119 @default.
- W3103216516 cites W2138070865 @default.
- W3103216516 cites W2149836610 @default.
- W3103216516 cites W2158857374 @default.
- W3103216516 cites W2161133588 @default.
- W3103216516 cites W2167450186 @default.
- W3103216516 cites W2171482804 @default.
- W3103216516 cites W2174816156 @default.
- W3103216516 cites W2285868373 @default.
- W3103216516 cites W2949239618 @default.
- W3103216516 cites W2964077033 @default.
- W3103216516 cites W3097976388 @default.
- W3103216516 cites W3098015749 @default.
- W3103216516 cites W3098046846 @default.
- W3103216516 cites W3098116021 @default.
- W3103216516 cites W3098874394 @default.
- W3103216516 cites W3099770000 @default.
- W3103216516 cites W3099853527 @default.
- W3103216516 cites W3100928491 @default.
- W3103216516 cites W3101182042 @default.
- W3103216516 cites W3101599069 @default.
- W3103216516 cites W3102734396 @default.
- W3103216516 cites W3103000602 @default.
- W3103216516 cites W3103723248 @default.
- W3103216516 cites W3104547646 @default.
- W3103216516 cites W3104909221 @default.
- W3103216516 cites W3105000388 @default.
- W3103216516 cites W3105382724 @default.
- W3103216516 cites W3106070152 @default.
- W3103216516 cites W3106525709 @default.
- W3103216516 cites W3123389522 @default.
- W3103216516 cites W4292861449 @default.
- W3103216516 doi "https://doi.org/10.3847/1538-4357/833/1/124" @default.
- W3103216516 hasPublicationYear "2016" @default.
- W3103216516 type Work @default.
- W3103216516 sameAs 3103216516 @default.
- W3103216516 citedByCount "101" @default.
- W3103216516 countsByYear W31032165162016 @default.
- W3103216516 countsByYear W31032165162017 @default.
- W3103216516 countsByYear W31032165162018 @default.
- W3103216516 countsByYear W31032165162019 @default.
- W3103216516 countsByYear W31032165162020 @default.
- W3103216516 countsByYear W31032165162021 @default.