Crucial Physical Dependencies of the Core-Collapse Supernova Mechanism
Crucial Physical Dependencies of the Core-Collapse Supernova Mechanism
复制标题
核心塌缩超新星机制的关键物理依赖性
DOI:
10.1007/s11214-017-0450-9
复制
发表时间:
2018
影响因子:
10.3
通讯作者:
Radice, D.
中科院分区:
文献类型:
--
作者:
Burrows, A.;Vartanyan, D.;Dolence, J. C.;Skinner, M. A.;Radice, D.
We explore with self-consistent 2D Fornaxsimulations the dependence of the outcome of collapse on many-body corrections to neutrino-nucleon cross sections, the nucleon-nucleon bremsstrahlung rate, electron capture on heavy nuclei, pre-collapse seed perturbations, and inelastic neutrino-electron and neutrino-nucleon scattering. Importantly, proximity to criticality amplifies the role of even small changes in the neutrino-matter couplings, and such changes can together add to produce outsized effects. When close to the critical condition the cumulative result of a few small effects (including seeds) that individually have only modest consequence can convert an anemic into a robust explosion, or even a dud into a blast. Such sensitivity is not seen in one dimension and may explain the apparent heterogeneity in the outcomes of detailed simulations performed internationally. A natural conclusion is that the different groups collectively are closer to a realistic understanding of the mechanism of core-collapse supernovae than might have seemed apparent.
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DOI:
10.1088/2041-8205/778/1/l7
发表时间:
2013-09
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
S. Couch;C. Ott
通讯作者:
S. Couch;C. Ott
影响因子:
4.8
作者:
E. Abdikamalov;A. Zhaksylykov;D. Radice;S. B. N. University;Caltech
通讯作者:
Caltech
影响因子:
1.9
作者:
C. Meakin;T. Sukhbold;D. Arnett
通讯作者:
D. Arnett
DOI:
10.3847/0004-637x/825/1/6
发表时间:
2015-11
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Summa;Florian Hanke;H. Janka;T. Melson;A. Marek;B. Müller
通讯作者:
A. Summa;Florian Hanke;H. Janka;T. Melson;A. Marek;B. Müller
DOI:
10.3847/1538-4357/aa92c5
发表时间:
2017
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Radice, David;Burrows, Adam;Vartanyan, David;Skinner, M. Aaron;Dolence, Joshua C.
通讯作者:
Dolence, Joshua C.