一种提高天文巡天探测能力的新方法

A New Method to Enhance Astronomical Sky Survey

在天文巡天观测中一般使用大视场光学望远镜系统,同时为了探测亮度弱的目标,要求光学望远镜具有大的口径。但是受材料、工艺等方面的限制,国内的大口径透射光学系统很难达到大的视场。为了解决巡天观测中这一实际问题,本文拟研究一种使用若干小口径的大视场望远镜组成一个望远镜束系统,通过对望远镜后端的CCD相机采集的天文图像进行图像配准和数据融合的处理,使其达到一个大口径、大视场望远镜系统的探测能力,这将有效的提高对暗弱天体的巡天观测能力。实验结果表明,该方法切实可行,能够有效提高现有望远镜系统的探测性能。

In astronomical sky survey, the large view field telescope is generally used. Meanwhile, in order to detect the targets with weak luminance, the diameter of optical telescope should be large too. Unfortunately, because of the limitation of material and technology, we can＇ t produce transmitted lens with both large diameter and large view field. In order to solve this actual problem in sky survey, this paper plans to develop a telescope bunch system that is composed of several same telescopes with relative small diameter and large view field to get the same detecting capability of one telescope system with both larger diameter and large view field. It will enhance the capability of detecting weak space targets. The experimental result shows its feasibility, and the detecting performance of telescope can be enhanced effectively.