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Exploring the Galaxy at TeV energies: Latest results from the H.E.S.S. Galactic Plane Survey

机译:以TeV能量探索银河:H.E.S.S.的最新结果银河平面调查

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The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric-Cherenkov telescopes located in Namibia and designed to detect extensive air showers initiated by -rays in the very-high-energy domain. It is an ideal instrument for surveying the Galactic plane in search of new sources, thanks to its location in the Southern Hemisphere, its excellent sensitivity, and its large field-of-view. The efforts of the H.E.S.S. Galactic Plane Survey, the first comprehensive survey of the inner Galaxy at TeV energies, have contributed to the discovery of an unexpectedly large and diverse population of over 60 sources of VHE -rays within its current range of ` = 250 to 65 degrees in longitude and |b| 3.5 degrees in latitude. The population of VHE -ray emitters is dominated by the pulsar wind nebula and supernova remnant source classes, although nearly a third remain unidentified or confused. The sensitivity of H.E.S.S. to sources in the inner Galaxy has improved significantly over the past two years, from continued survey observations, dedicated follow-up observations of interesting source candidates, and from the development of advanced methods for discrimination of -ray-induced showers from the dominant background of hadron-induced showers. The latest maps of the Galaxy at TeV energies will be presented, and a few remarkable new sources will be highlighted.
机译:高能立体观测系统(H.E.S.S.)是位于纳米比亚的四个成像大气-切伦科夫望远镜的阵列,旨在探测超高能域中由-射线引发的大范围的阵雨。由于其位于南半球,其出色的灵敏度和广阔的视野,它是测量银河系平面以寻找新资源的理想仪器。 H.E.S.S.的努力银河平面调查是在TeV能量下首次对内银河进行的全面调查,它有助于发现一个意外的庞大且多样化的种群,这些种群在其目前的经度= 250至65度范围内,具有60多种VHE射线源。 | b |纬度3.5度。 VHE射线发射器的种类主要由脉冲星云和超新星残留物源类决定,尽管近三分之一仍未被发现或混淆。 H.E.S.S.的敏感性在过去的两年中,通过持续的调查观察,对感兴趣的候选源的专门跟踪观察以及用于区分主要背景的射线诱发的阵雨的先进方法的发展,银河内部的源有了显着改善。强子引起的阵雨。将展示TeV能量下的最新银河图,并将重点介绍一些非凡的新资源。

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