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Neutron star kick velocity induced by neutrino chirality flip and a lower bound for the neutrino magnetic moment
Astronomische Nachrichten ( IF 0.9 ) Pub Date : 2021-02-14 , DOI: 10.1002/asna.202113906
Alejandro Ayala 1, 2 , Santiago Bernal Langarica 1 , Saul Hernández‐Ortiz 1, 3 , Luis Alberto Hernández 1, 2, 4 , Daryel Manreza‐Paret 1, 5
Affiliation  

We study the neutrino chirality flip during the birth of a neutron star, produced in a core made of strange quark matter. This mechanism is applied to the neutron star kick velocity problem and we show that it is efficient when the neutrino magnetic moment is not smaller than 4.7 × 10−15μB, where μB is the Bohr magneton. When this lower bound is combined with the most stringent upper bound, our results set a range for the neutrino magnetic moment given by 4.7 × 10−15 ≤ μν/μB ≤ (0.1 − 0.4) × 10−11. The obtained kick velocities for natal conditions are consistent with the observed ones and span the correct range of radii for typical magnetic field intensities.

中文翻译:

中微子手性翻转引起的中子星踢速度和中微子磁矩的下界

我们研究了在由奇怪的夸克物质构成的核中产生的中子星诞生期间的中微子手性翻转。这种机制被施加到中子星踢速度的问题,我们表明,它是有效的时中微子磁矩不小于4.7×10 -15 μ,其中μ是玻尔磁子。当此下限与上限最严格的被组合,我们的结果设定的范围为由下式给出中微子磁矩4.7×10 -15  ≤  μ ν / μ ≤(0.1 - 0.4)×10 -11。所获得的针对新生儿状况的脚踢速度与所观察到的一致,并且跨越了典型磁场强度的正确半径范围。
更新日期:2021-03-22
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