Neutrino emission due to pair – annihilation in the neutron star magnetic field

IF 10.2 4区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of High Energy Astrophysics Pub Date : 2024-11-01 DOI:10.1016/j.jheap.2024.11.005

Shiladittya Debnath , Brajagopal Majumder

引用次数: 0

Abstract

In this paper, we have calculated the energy loss in terms of luminosity for neutrinos produced by the annihilation of electron–positron pair in the light of Photo – Neutrino weak interaction with an intense magnetic field. After analytical calculation, we may conclude that the neutrino luminosity increases with the magnetic field in the temperature range of 10⁸ to 10¹² Kelvins giving rise to an energy loss channel. This may provide an alternate cooling mechanism for highly magnetized neutron stars. We have also conducted a comparative study of neutrino emission from magnetized neutron stars based on both Photo–Neutrino interaction and Conventional (current – current) weak interaction. We found a remarkable similarity between the two models on temperature versus energy loss behaviour of neutron stars. However, these are found to differ from one another on the overall time scale of evolution.

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中子星磁场中的成对湮灭导致的中微子发射

在本文中，我们以光度的形式计算了在强磁场下电子-正电子对湮灭产生的中微子的能量损失。经过分析计算，我们可以得出这样的结论：在 108 至 1012 开尔文的温度范围内，中微子的光度会随着磁场的增加而增加，从而产生一个能量损失通道。这可能为高磁化中子星提供了另一种冷却机制。我们还根据光-中微子相互作用和常规（电流-电流）弱相互作用对磁化中子星的中微子发射进行了比较研究。我们发现这两种模型在中子星的温度与能量损失行为上有明显的相似性。然而，我们发现这两种模型在演化的总体时间尺度上有所不同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of High Energy Astrophysics Earth and Planetary Sciences-Space and Planetary Science

CiteScore

9.70

自引率

5.30%

发文量

审稿时长

65 days

期刊介绍： The journal welcomes manuscripts on theoretical models, simulations, and observations of highly energetic astrophysical objects both in our Galaxy and beyond. Among those, black holes at all scales, neutron stars, pulsars and their nebula, binaries, novae and supernovae, their remnants, active galaxies, and clusters are just a few examples. The journal will consider research across the whole electromagnetic spectrum, as well as research using various messengers, such as gravitational waves or neutrinos. Effects of high-energy phenomena on cosmology and star-formation, results from dedicated surveys expanding the knowledge of extreme environments, and astrophysical implications of dark matter are also welcomed topics.