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arXiv 0810.2555astro-ph
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用半轻子和强子模型研究GRB瞬发相同步辐射

Synchrotron Emissions in GRB Prompt Phase Using a Semi Leptonic and Hadronic Model

S. Guiriec, D. Gialis, G. Pelletier, F. Piron

摘要:

在这篇关于伽玛暴的即时发射的文章中,我们声称与磁场相关的一些重要参数,如它的指数分布,它的湍流谱指数和它的不规则性水平,将可以用GLAST测量。特别是峰值能量Epeak与总能量E的关系定律(如Amati定律)限制了湍流谱指数,并且在所有现有的MHD湍流理论中,仅与Kolmogorov标度兼容。因此,这些数据将允许一个更好地确定伽玛暴的性能作为粒子加速器。这为更认真地描述电子和质子加速提供了可能性。我们讨论了可能产生的UHECR和它的签名通过GeV-TeV同步辐射。

英文摘要:

In this communication devoted to the prompt emission of GRBs, we claim that some important parameters associated to the magnetic field, such as its index profile, the index of its turbulence spectrum and its level of irregularities, will be measurable with GLAST. In particular the law relating the peak energy Epeak with the total energy E (like Amati's law) constrains the turbulence spectrum index and, among all existing theories of MHD turbulence, is compatible with the Kolmogorov scaling only. Thus, these data will allow a much better determination of the performances of GRBs as particle accelerators. This opens the possibility to characterize both electron and proton acceleration more seriously. We discuss the possible generation of UHECRs and of its signature through GeV-TeV synchrotron emission.

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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