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arXiv 0707.0577astro-ph
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夸克物质各向异性中微子发射引起的脉冲星反冲

Pulsar kicks by anisotropic neutrino emission from quark matter

I. Sagert, J. Schaffner-Bielich

摘要:

本文基于夸克物质在强磁场作用下的非对称中微子发射,讨论了超新星遗迹中中微子的加速机制。极化的电子自旋将来自直接夸克Urca过程的中微子发射固定在沿磁场的一个方向上。我们计算了电子自旋自旋所需的磁场强度以及成功加速机制所需的原始中子星初始温度。此外,我们还讨论了中微子在夸克和中子物质中的平均自由程,结果表明中微子的平均自由程很小。因此,高的中微子相互作用率将消除中微子发射的不对称性。作为一个可能的解决方案,这个问题,我们考虑到颜色超导性的影响。

英文摘要:

We discuss an acceleration mechanism for pulsars out of their supernova remnants based on asymmetric neutrino emission from quark matter in the presence of a strong magnetic field. The polarized electron spin fixes the neutrino emission from the direct quark Urca process in one direction along the magnetic field. We calculate the magnetic field strength which is required to polarize the electron spin as well as the required initial proto-neutron star temperature for a successfull acceleration mechanism. In addition we discuss the neutrino mean free paths in quark as well as in neutron matter which turn out to be very small. Consequently, the high neutrino interaction rates will wash out the asymmetry in neutrino emission. As a possible solution to this problem we take into account effects from colour superconductivity.

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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