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The Cygnus region of the galaxy: A VERITAS perspective

机译:星系的天鹅座地区:Veritas观点

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The Cygnus-X star-forming region ("Cygnus") is the richest star-forming region within 2 kpc of Earth and is home to a wealth of potential cosmic ray accelerators, including supernova remnants, massive star clusters, and pulsar wind nebulae. Over the past five years, discoveries by several gamma-ray observatories sensitive in different energy bands, including the identification by Fermi-LAT of a potential cocoon of freshly accelerated cosmic rays, have pinpointed this region as a unique laboratory for studying the early phases of the cosmic ray life cycle. From 2007 to 2009 VERITAS, a very high energy (VHE; E> 100 GeV) observatory in southern Arizona, undertook an extensive survey of the Cygnus region from 67 to 82 degrees Galactic longitude and from -1 to 4 degrees in Galactic latitude. In the years since, VERITAS has continued to accumulate data at specific locations within the survey region. We will review the discoveries and insights that this rich dataset has already provided. We will also consider the key role that we expect these data to play in interpreting the complex multiwavelength picture we have of the Cygnus region, particularly in the vicinity of the Cygnus cocoon. As part of this discussion we will summarize ongoing studies of VERITAS data in the Cygnus region, including the development of new data analysis techniques that dramatically increase VERITAS' sensitivity to sources on scales larger than a square degree.
机译:Cygnus-X星形形成区域(“Cygnus”)是在地球的2 kpc内最富有的星形形成区域,是丰富潜在的宇宙射线加速器的所在地,包括超新星残余,大规模的星团和脉冲脉冲星云。在过去的五年中,几个伽玛射线的发现观测站不同能带敏感,包括确定由费米LAT新鲜加速宇宙射线的潜在茧,已经查明该地区一种特有的实验室研究的早期阶段宇宙射线生命周期。从2007年到2009年Veritas,亚利桑那州南部的一个非常高的能量(VHE; e> 100 GEV)天文台,对Cygnus地区的广泛调查从67到82度的银河系经度,从-1到4度的银河纬度。从此已到来,Veritas继续在调查区域内的具体地点积累数据。我们将审核已提供此富有数据集的发现和见解。我们还将考虑我们预期这些数据在解释我们具有Cygnus区域的复杂多波长图片的关键作用,特别是在Cygnus茧附近。作为本讨论的一部分,我们将总结对Cygnus地区的Veritas数据的持续研究,包括开发新的数据分析技术,从而大大提高了Veritas对大于平方度的尺度尺度的敏感性。

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