分布式孔径望远镜和蜻蜓望远阵列
Distributed Aperture Telescopes and the Dragonfly Telephoto Array
摘要：
与传统望远镜相比，望远镜阵列可以更快、更低成本地建造高性能的宽视场成像系统。分布式孔径望远镜（Dragonfly Telephoto Array）是一种特殊类型的阵列，其中所有望远镜都指向天空中大致相同的位置。在这种配置中，阵列的性能就像一个大型的、光学速度非常快的单个望远镜，对系统误差具有非常好的控制。在一些关键领域，例如在宽视场范围内的低表面亮度成像，分布式孔径望远镜远远优于传统的巡天望远镜。在这些论文中，我们概述了分布式孔径望远镜的基本原理，并强调了这一概念的优点和缺点。观测参数空间中的设计擅长的领域被确定。这些对应于天体物理学领域，这些领域相对未被探索，并且具有异常强大的突破潜力。
英文摘要：
Telescope arrays allow high-performance wide-field imaging systems to be built more quickly and at lower cost than conventional telescopes. Distributed aperture telescopes (the premier example of which is the Dragonfly Telephoto Array) are a special type of array in which all telescopes point at roughly the same position in the sky. In this configuration the array performs like a large and optically very fast single telescope with unusually good control over systematic errors. In a few key areas, such as low surface brightness imaging over wide fields of view, distributed aperture telescopes outperform conventional survey telescopes by a wide margin. In these Proceedings we outline the rationale for distributed aperture telescopes, and highlight the strengths and weaknesses of the concept. Areas of observational parameter space in which the design excels are identified. These correspond to areas of astrophysics that are both relatively unexplored and which have unusually strong breakthrough potential.
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