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arXiv 2201.10810astro-ph.HEhep-ph
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来自新星快风的高能中微子

High energy neutrinos from fast winds in Novae

W. Bednarek, A. Śmiałkowski

摘要:

我们讨论的情况下,TeV中微子产生的新星爆炸。有人认为,强子在新星风的内部被加速到非常高的能量,这是白矮星强磁场重联的结果。强子预计将有效地与风的稠密物质相互作用,无论是在加速过程中还是在它们与赤道风的平流过程中。我们计算的中微子光谱,并估计μ介子中微子事件率在冰立方望远镜,在几个新星的情况下。一般来说,这些事件率不太可能被现有的中微子探测器探测到。然而,对于观测者的有利位置,一些中微子事件不仅可以从最近由{ \it Fermi}-LAT望远镜在GeV $γ$ -射线中检测到的新星中检测到,而且可以从在$γ$ -射线中未检测到的新星中检测到。从新星观测到的GeV $γ$射线发射不能起源于这里讨论的模型,因为质子在白矮星的几个恒星半径内被加速,即在GeV $γ$射线与辐射场和风物质相互作用时被严重吸收的区域。

英文摘要:

We discuss a scenario in which TeV neutrinos are produced during explosions of Novae. It is argued that hadrons are accelerated to very high energies in the inner part of a Nova wind, as a result of reconnection of the strong magnetic field of a White Dwarf. Hadrons are expected to interact efficiently with a dense matter of the wind, either already during the acceleration process or during their advection with the equatorial wind. We calculate the neutrino spectra, and estimate the muon neutrino event rates in the IceCube telescope, in the case of a few Novae. In general, those event rates are unlikely to be detected with the present neutrino detectors. However, for favourable location of the observer, some neutrino events might be detected not only from the class of Novae recently detected in the GeV $γ$-rays by the {\it Fermi}-LAT telescope but also from novae not detected in $γ$-rays. The GeV $γ$-ray emission observed from Novae cannot originate in terms of the model discussed here, since protons are accelerated within a few stellar radii of the White dwarf, i.e. in the region in which GeV $γ$-rays are expected to be severely absorbed in the interactions with the radiation field and the matter of the wind.

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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