Fast neutrino cooling of nuclear pasta in neutron stars: Molecular dynamics simulations
Fast neutrino cooling of nuclear pasta in neutron stars: Molecular dynamics simulations
复制标题
中子星中核意大利面的快速中微子冷却:分子动力学模拟
DOI:
10.1103/physrevc.102.045801
复制
发表时间:
2020
影响因子:
3.1
通讯作者:
Lunardini, Cecilia
中科院分区:
文献类型:
--
作者:
Lin, Zidu;Caplan, Matthew E.;Horowitz, Charles J.;Lunardini, Cecilia
The direct Urca process of rapid neutrino emission can occur in nonuniform nuclear pasta phases that are expected in the inner crusts of neutron stars. Here, the periodic potential for a nucleon in nuclear pasta allows momentum conservation to be satisfied for direct Urca reactions. We improve on earlier work by modeling a rich variety of pasta phases (gnocchi, waffle, lasagna, and anti-spaghetti) with large-scale molecular dynamics simulations. We find that the neutrino luminosity due to direct Urca reactions in nuclear pasta can be 3 to 4 orders of magnitude larger than that from the modified Urca process in the NS core. Thus neutrino radiation from pasta could dominate radiation from the core and this could significantly impact the cooling of neutron stars.
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影响因子:
4.8
作者:
D. Yakovlev;M. Gusakov;P. Haensel
通讯作者:
P. Haensel
影响因子:
3.1
作者:
A. Schneider;D. Berry;M. Caplan;C. Horowitz;Zidu Lin
通讯作者:
Zidu Lin
影响因子:
3.1
作者:
M. Alford;S. Harris
通讯作者:
M. Alford;S. Harris
DOI:
10.1016/j.nuclphysa.2005.02.061
发表时间:
2004-02
期刊:
Nuclear Physics
影响因子:
--
作者:
D. Yakovlev;O. Gnedin;M. Gusakov;A. Kaminker;K. Levenfish;A. V. A. I. Institute-A.-V.-A.-I.-Institute-93046036;S. University
通讯作者:
D. Yakovlev;O. Gnedin;M. Gusakov;A. Kaminker;K. Levenfish;A. V. A. I. Institute-A.-V.-A.-I.-Institute-93046036;S. University