SkyMapper和南天巡天:恒星天体物理学的宝贵资源
SkyMapper and the Southern Sky Survey: a valuable resource for stellar astrophysics
摘要:
澳大利亚国立大学的SkyMapper望远镜是新一代专用宽视场巡天望远镜中的第一批。它拥有一个5.7平方度的视场卡塞格伦成像仪和268百万像素的CCD阵列,其主要目标是进行南方天空调查:整个南方天空的六色(uvgriz),六历元数字记录。这次巡天将为8至23等的天体提供光度测量,全球光度测量精度为0.03等,天体测量精度为50等。在这篇文章中,我们介绍了SkyMapper设施,调查数据产品和概述了各种案例研究恒星天体物理学SkyMapper将有很大的影响。
英文摘要:
The Australian National University's SkyMapper telescope is amongst the first of a new generation of dedicated wide-field survey telescopes. Featuring a 5.7 square deg field-of-view Cassegrain imager and 268 Mega-pixel CCD array, its primary goal will be to undertake the Southern Sky Survey: a six color (uvgriz), six-epoch digital record of the entire southern sky. The survey will provide photometry for objects between 8th and 23rd magnitude with a global photometric accuracy of 0.03 magnitudes and astrometry to 50 mas. In this contribution we introduce the SkyMapper facility, the survey data products and outline a variety of case-studies in stellar astrophysics for which SkyMapper will have high impact.
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