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arXiv 1801.06246astro-ph.HE
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中微子各向异性发射引起的磁化奇异夸克星的反冲

Kicks of magnetized strange quark stars induced by anisotropic emission of neutrinos

Alejandro Ayala, D. Manreza Paret, A. Pérez Martínez, Gabriella Piccinelli, Angel Sánchez, Jorge S. Ruíz Montaño

摘要:

本文研究了中子星核在磁场作用下的各向异性中微子辐射。我们将核心模拟为由奇异夸克物质的磁化理想气体构成,并在这种环境中实现恒星平衡的条件。进行计算,而不诉诸分析简化和温度,密度和磁场值对应的典型条件下的中子星的演变。各向异性的中微子发射产生火箭效应,有助于恒星的反冲速度。我们发现,反冲速度的计算值位于观测值的范围内,达到速度的顺序$\sim1000$公里的$^{-1}$之间的磁场$10^{15}-10^{18}$ G和半径为20至5公里,分别。

英文摘要:

We study the anisotropic neutrino emission from the core of neutron stars induced by the star's magnetic field. We model the core as made out of a magnetized ideal gas of strange quark matter and implement the conditions for stellar equilibrium in this environment. The calculation is performed without resorting to analytical simplifications and for temperature, density and magnetic field values corresponding to typical conditions for a neutron star's evolution. The anisotropic neutrino emission produces a rocket effect that contributes to the star's kick velocity. We find that the computed values for the kick velocity lie within the range of the observed values, reaching velocities of the order of $\sim1000$ km s$^{-1}$ for magnetic fields between $10^{15}-10^{18}$ G and radii of 20 to 5 km, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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