...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Physical Journal, H. Historical Perspectives on Contemporary Physics >Very-high energy gamma-ray astronomy: A 23-year success story in high-energy astroparticle physics
【24h】

Very-high energy gamma-ray astronomy: A 23-year success story in high-energy astroparticle physics

机译：超高能伽马射线天文学：高能天体物理学中23年的成功故事

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Very-high energy (VHE) gamma quanta contribute only a minuscule fraction - below one per million - to the flux of cosmic rays. Nevertheless, being neutral particles they are currently the best "messengers" of processes from the relativistic/ultra-relativistic Universe because they can be extrapolated back to their origin. The window of VHE gamma rays was opened only in 1989 by the Whipple collaboration, reporting the observation of TeV gamma rays from the Crab nebula. After a slow start, this new field of research is now rapidly expanding with the discovery of more than 150 VHE gamma-ray emitting sources. Progress is intimately related with the steady improvement of detectors and rapidly increasing computing power. We give an overview of the early attempts before and around 1989 and the progress after the pioneering work of the Whipple collaboration. The main focus of this article is on the development of experimental techniques for Earth-bound gamma-ray detectors; consequently, more emphasis is given to those experiments that made an initial breakthrough rather than to the successors which often had and have a similar (sometimes even higher) scientific output as the pioneering experiments. The considered energy threshold is about 30 GeV. At lower energies, observations can presently only be performed with balloon or satellite-borne detectors. Irrespective of the stormy experimental progress, the success story could not have been called a success story without a broad scientific output. Therefore we conclude this article with a summary of the scientific rationales and main results achieved over the last two decades.
机译：超高能量（VHE）伽马量子仅对宇宙射线的通量贡献很小的一部分（低于百万分之一）。然而，由于它们是中性粒子，因此它们目前是相对论/超相对论宇宙中过程的最佳“信使”，因为它们可以推断出其起源。 Vhip伽马射线的窗口直到1989年由Whipple合作才打开，报告观察到来自蟹状星云的TeV伽马射线。经过缓慢的开端，随着150多个VHE伽马射线发射源的发现，这个新的研究领域正在迅速扩展。进展与检测器的稳定改进和计算能力的迅速提高密切相关。我们概述了1989年前后的早期尝试以及Whipple合作的开拓性工作之后的进展。本文的主要重点是对与地球接触的伽马射线探测器的实验技术的发展。因此，更多的重点放在那些取得了初步突破的实验上，而不是那些通常具有并具有与开拓性实验相似（有时甚至更高）的科学成果的后继者。所考虑的能量阈值约为30 GeV。在较低的能量下，目前只能使用气球或卫星探测器进行观测。不管实验进展如何，没有广泛的科学成果就不能将成功故事称为成功故事。因此，在本文结尾处，我们总结了过去二十年来的科学原理和主要成果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号