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arXiv 2109.09446astro-ph.HEastro-ph.GA
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Fermi-LAT谱到VHE的数据驱动外推方案

Data-driven extrapolation schemes of Fermi-LAT spectra to the VHE

M. Nievas Rosillo, T. Hassan

摘要:

在费米卫星上的大面积望远镜(LAT)运行了10年之后,费米合作组织已经产生了两个主要的目录:4FGL和3FHL。这些目录代表了可能由成像大气切伦科夫望远镜(IACTs)研究的潜在甚高能量(VHE)发射体的最佳样本。几种方法被用来外推的费米-LAT光谱TeV的能量,一般使用简单的分析功能。IACT最近的成功促使了目录的创建,列出了这些实验的发现。在这些举措中,gamma-cat作为一种开放获取工具,可以归档VHE领域的高级结果,如目录,光谱和光变曲线。通过使用这些资源,我们提出了一个数据驱动的方法来测试文献中使用的不同VHE外推方案的可靠性,并评估其准确性再现真实VHE观测。

英文摘要:

After 10 years of operations of the Large Area Telescope (LAT), a high-energy pair-creation telescope onboard the Fermi satellite, the Fermi Collaboration has produced two major catalogs: the 4FGL and the 3FHL. These catalogs represent the best sample of potential very high energy (VHE) emitters that may be studied by Imaging Atmospheric Cherenkov Telescopes (IACTs). Several methods are used to extrapolate the Fermi-LAT spectra to TeV energies, generally using simple analytical functions. The recent success of IACTs has motivated the creation of catalogs listing the discoveries of these experiments. Among these initiatives, gamma-cat excels as an open-access tool to archive high-level results in the VHE field, such as catalogs, spectra and light curves. By using these resources, we present a data-driven methodology to test the reliability of different VHE extrapolation schemes used in the literature and evaluate their accuracy reproducing real VHE observations.

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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