Astronomical image processing - applications to ultra-faint imaging of small, moving, solar system bodies: comets and near-Earth-objects

K. Meech
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引用次数: 2

Abstract

Summary form only given. Modern electronic detectors, or CCDs are being used on large optical ground-based and space-based telescopes to image ultra-faint astronomical sources, ranging from small, solar system bodies, to diffuse gas and dust in the interstellar medium to very distant galaxies. Observations of all these objects are challenging, but the small, solar system bodies create special demands on image processing because of their motion relative to background objects. Techniques for pushing CCD detectors on ground-based and space-based telescopes to the limits of their imaging capabilities to detect objects hundreds to thousands of times fainter than the dark night sky are discussed. The author also discusses automated techniques for searching the world's largest astronomical CCD mosaics for moving objects. The application of these techniques to understand the early history of the solar system, and toward discovering small fast-moving comets and asteroidal bodies in the near-Earth vicinity are presented.
天文图像处理-应用于小的,移动的,太阳系天体的超微弱成像:彗星和近地天体
只提供摘要形式。现代电子探测器,或称ccd,正被用于地面和太空的大型光学望远镜上,以成像超微弱的天文光源,从太阳系的小天体,到星际介质中的弥漫气体和尘埃,再到非常遥远的星系。对所有这些天体的观测都是具有挑战性的,但是太阳系的小天体由于相对于背景物体的运动而对图像处理产生了特殊的要求。讨论了将地面和天基望远镜上的CCD探测器推向其成像能力极限的技术,以探测比黑暗天空暗淡数百到数千倍的物体。作者还讨论了搜索世界上最大的天文CCD马赛克运动物体的自动化技术。介绍了这些技术在了解太阳系早期历史以及在近地附近发现快速移动的小彗星和小行星体方面的应用。
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