Star-Cluster Astrometry with Ground-Based Wide Field Imagers

Star-Cluster Astrometry with Ground-Based Wide Field Imagers
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使用地基广角成像仪进行星团天体测量

DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
R. S. Yadav
R. S. Yadav
中科院分区:
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文献类型:
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作者:
P. Seidelmann;A. Monet;L. Bedin;Jay Anderson;G. Piotto;Y. Momany;R. S. Yadav

文献摘要

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我们在MPI-ESO 2.2m望远镜的焦点上展示了宽视场成像仪的天文测量潜力。目前,我们能够在每个坐标(在0.8角秒的观测条件下)以$sim$4 mas/帧的精度测量一颗曝光良好的恒星的位置。我们在这里展示一些初步结果。
We show the astrometric potential of the Wide Field Imager at the focus of the MPI-ESO 2.2m Telescope. Currently, we are able to measure the position of a well-exposed star with a precision of $sim$4 mas/frame in each coordinate (under 0.8 arcsec seeing conditions). We present some preliminary results here.