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首页> 外文会议>Conference on Survey and Other Telescope Technologies and Discoveries; Aug 27-28, 2002; Waikoloa, Hawaii, USA >Visible and Infrared Survey Telescope for Astronomy: Overview
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Visible and Infrared Survey Telescope for Astronomy: Overview

机译：天文可见光和红外线测量望远镜：概述

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摘要

We give an overview of the current status of the VISTA (Visible and Infrared Survey Telescope for Astronomy) project to build a 4-m wide field survey telescope to be operated by ESO (the European Southern Observatory) at the Cerro Paranal Observatory in Chile. First light in 2006 will be with the Infrared (J, H, K_s) Camera with a 1.65 degrees diameter field of view able to accommodate sixteen 2k x 2k IR detectors with 0.34"pixel size. Some motivations driving the choice of site, current design, and operational mode are discussed. We outline some innovative features of the system, which were necessary to deal with, or arose from, the very large field of view, including a cold baffle (rather than cold stop) in the IR camera, lack of traditional telescope focus, f/1 primary mirror, thermal control of the IR camera etc. These are cross-referenced to more detailed analyses by members of the VISTA Project Office team presented at this meeting. Estimated IR performance for VISTA is given. The scientific gains from adding the 2.1 degrees field of view Visible Camera when funds become available are stressed. The problems of processing 0.4TB of survey data acquired each night are discussed.
机译：我们概述了VISTA（天文学用可见光和红外测量望远镜）项目的现状，该项目正在由ESO（欧洲南部天文台）在智利的Cerro副天文台建造4米宽的野外测量望远镜。 2006年将首先使用直径为1.65度的红外（J，H，K_s）摄像机，该摄像机可容纳16个2k x 2k红外探测器，像素大小为0.34英寸。一些动机促使现场选择，目前的设计我们概述了系统的一些创新功能，这些功能是处理或产生于非常大的视野所必需的，包括红外摄像头中的冷挡板（而不是冷停机），缺少在本次会议上，由VISTA项目办公室团队的成员交叉参考了更详细的分析，以交叉引用这些细节，并给出了VISTA的估计IR性能。强调了在资金到位后增加2.1视角可视摄像机的科学收益，并讨论了处理每晚获取的0.4TB调查数据的问题。

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