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首页> 外文会议>Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray pt.2 >GRI: the Gamma-Ray Imager mission
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GRI: the Gamma-Ray Imager mission

机译：GRI：伽玛射线成像仪任务

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Observations of the gamma-ray sky reveal the most powerful sources and the most violent events in the Universe. While at lower wavebands the observed emission is generally dominated by thermal processes, the gamma-ray sky provides us with a view on the non-thermal Universe. Here particles are accelerated to extreme relativistic energies by mechanisms which are still poorly understood, and nuclear reactions are synthesizing the basic constituents of our world. Cosmic accelerators and cosmic explosions are the major science themes that are addressed in the garnma-ray regime. With the INTEGRAL observatory, ESA has provided a unique tool to the astronomical community revealing hundreds of sources, new classes of objects, extraordinary views of antimatter annihilation in our Galaxy, and fingerprints of recent nucleosynthesis processes. While INTEGRAL provides the global overview over the soft gamma-ray sky, there is a growing need to perform deeper, more focused investigations of gamma-ray sources. In soft X-rays a comparable step was taken going from the Einstein and the EXOSAT satellites to the Chandra and XMM/Newton observatories. Technological advances in the past years in the domain of gamma-ray focusing using Laue diffraction and multilayer-coated mirror techniques have paved the way towards a gamma-ray mission, providing major improvements compared to past missions regarding sensitivity and angular resolution. Such a future Gamma-Ray Imager will allow to study particle acceleration processes and explosion physics in unprecedented detail, providing essential clues on the innermost nature of the most violent and most energetic processes in the Universe.
机译：对伽玛射线天空的观察揭示了宇宙中最强大的来源和最猛烈的事件。虽然在较低波段观察到的辐射通常由热过程控制，但伽马射线的天空为我们提供了非热宇宙的视角。在这里，通过尚不为人所知的机制，粒子被加速为极端相对论能量，核反应正在合成我们世界的基本组成部分。宇宙加速器和宇宙爆炸是伽玛射线制度中涉及的主要科学主题。通过INTEGRAL天文台，ESA为天文学界提供了一种独特的工具，它揭示了数百种来源，新的天体，银河系中反物质extraordinary灭的非凡视角以及近期核合成过程的指纹。尽管INTEGRAL提供了对软伽马射线天空的全球概览，但对执行更深入，更集中的伽马射线源研究的需求日益增长。在软X射线中，从爱因斯坦和EXOSAT卫星到钱德拉和XMM /牛顿天文台，迈出了可比的一步。过去几年中，使用劳厄衍射和多层镀膜反射镜技术在伽马射线聚焦领域中的技术进步为实现伽马射线任务铺平了道路，与以往的任务相比，在灵敏度和角度分辨率方面有了重大改进。这样的未来伽马射线成像仪将允许以前所未有的细节研究粒子加速过程和爆炸物理学，为宇宙中最猛烈和最充满活力的过程的最内在本质提供重要线索。

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