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arXiv 0904.0871astro-ph.HE
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来自古老超新星遗迹的高能反质子

High-energy antiprotons from old supernova remnants

Pasquale Blasi, Pasquale D. Serpico

摘要:

最近提出的一个模型(arXiv:0903.2794)解释了PAMELA卫星测量的正电子部分能量的上升,即在老化的超新星遗迹中正电子的强子产生和加速。在这里,我们提出了一个由相同的机制产生的反质子通量的初步计算。虽然该模型与目前的数据是一致的,但在高能量下,反质子与质子的比例预计会上升,这与正电子分数的其他天体物理学解释(如质子星)有着显著的区别。我们简要讨论了通过反物质搜索暗物质的重要意义。

英文摘要:

A recently proposed model (arXiv:0903.2794) explains the rise in energy of the positron fraction measured by the PAMELA satellite in terms of hadronic production of positrons in aged supernova remnants, and acceleration therein. Here we present a preliminary calculation of the anti-proton flux produced by the same mechanism. While the model is consistent with present data, a rise of the antiproton to proton ratio is predicted at high energy, which strikingly distinguishes this scenario from other astrophysical explanations of the positron fraction (like pulsars). We briefly discuss important implications for Dark Matter searches via antimatter.

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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