Diffuse emission of TeV neutrinos and gamma-rays from young pulsars by photomeson interaction in the Galaxy

作     者：Zhi-Xiong Li Gui-Fang Lin Wei-Wei Na 

作者机构：Department of Physics Yunnan University Yunnan Astronomical Observatory National Astronomical Observatories Chinese Academy of Sciences Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of Sciences Department of Physics Yuxi Normal University 

基　　金：partially supported by the Science Research Foundation Department of Education Yunnan Province (Grant No. 2012Y316) Yunnan Province under Grant No. 2010CD112 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2013年第13卷第9期

页      码：1097-1106页

摘      要：It is generally believed that young, rapidly rotating pulsars are important sites of particle acceleration, in which protons can be accelerated to relativistic energy above the polar cap region if the magnetic moment is antiparallel to the spin axis （μ·Ω 〈 0）. To obtain diffuse neutrinos and gamma-rays at TeV that originate in our Galaxy, we use the Monte Carlo method to generate a sample of young pulsars with ages less than 106 yr in our galaxy; the neutrinos and high-energy gamma-rays can be produced through a photomeson process with the interaction of energetic protons and soft X-ray photons （p ＋γ→△＋→n＋π＋/p＋π0） for a single pulsar, and these X-ray photons come from the surface of the neutron star. The results suggest that the flux of diffuse neutrinos at TeV energies is lower than the background flux, indicating they are difficult to detect using current neutrino telescopes.

主 题 词：pulsars: general    stars: neutron    neutrinos and gamma rays: stars   elementary: neutrinos 

学科分类：07[理学] 070401[070401] 070202[070202] 0704[理学-天文学类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1088/1674-4527/13/9/008

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