论文标题
Cherenkov望远镜阵列将测试Pulsars是否产生银河系中心伽马射线过量
The Cherenkov Telescope Array Will Test Whether Pulsars Generate the Galactic Center Gamma-Ray Excess
论文作者
论文摘要
从银河中心周围的区域观察到的GEV尺度伽马射线过量已被解释为歼灭暗物质颗粒的产物，或者是从大量微弱和中央划分的毫秒脉冲的大群中的发射。如果脉冲星负责此信号，则还应产生可检测到的TEV尺度发射水平。在这项研究中，我们采用了基于模板的模拟数据分析，以评估Cherenkov望远镜阵列（CTA）检测或限制这种发射的存在的能力，从而提供了一种新的强大手段，以测试是否造成观察到的过剩量是否负责毫秒。我们发现，即使对内星系进行了相对简短的观察，CTA也能够确定检测到TEV规模的发射，或排除脉冲星作为银河系中心伽马射线过量的来源。
The GeV-scale gamma-ray excess observed from the region surrounding the Galactic Center has been interpreted as either the products of annihilating dark matter particles, or as the emission from a large population of faint and centrally-located millisecond pulsars. If pulsars are responsible for this signal, they should also produce detectable levels of TeV-scale emission. In this study, we employ a template-based analysis of simulated data in an effort to assess the ability of the Cherenkov Telescope Array (CTA) to detect or constrain the presence of this emission, providing a new and powerful means of testing whether millisecond pulsars are responsible for the observed excess. We find that after even a relatively brief observation of the Inner Galaxy, CTA will be able to definitively detect this TeV-scale emission, or rule out pulsars as the source of the Galactic Center Gamma-Ray Excess.
