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Forum 天文观测高分辨率光纤光谱仪过验收
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天文观测高分辨率光纤光谱仪过验收

YYD
YYD over 14 years ago

日前,由中国科学院国家天文台南京天文光学技术研究所为山东大学威海分校研制的中国第一台天文观测高分辨率光纤光谱仪通过验收。该仪器的科学目标是进行恒星视向速度测量,高分辨率、高信噪比的星际参数测量和化学元素丰度测量等。

    该仪器配置在山东大学威海天文台的1米望远镜上。光谱仪光学系统采用白瞳设计,光束口径92.5mm。仪器设有良好的恒温、隔震系统,由光纤引导连接到望远镜的卡焦接口,并配备有平场定标,波长定标及碘蒸汽盒定标装置和独立的导星系统。光谱仪一次曝光可覆盖波长范围为375nm~1000nm,光谱分辨率为40000~60000。

    该仪器的科学目标是进行恒星视向速度测量,高分辨率、高信噪比的星际参数测量和化学元素丰度测量等。从2010年8月仪器交付使用以来,山东大学威海天文台进行了大量的试观测。试观测期间,光谱仪性能优良,工作状态良好。高稳定度的恒温系统和高精度的碘蒸汽吸收装置为高精度视向速度测量提供了有力的保障。试观测中对于视星等8等的恒星,一小时曝光观测的信噪比好于100。

日前,由中国科学院国家天文台南京天文光学技术研究所为山东大学威海分校研制的中国第一台天文观测高分辨率光纤光谱仪通过验收。该仪器的科学目标是进行恒星视向速度测量,高分辨率、高信噪比的星际参数测量和化学元素丰度测量等。

    该仪器配置在山东大学威海天文台的1米望远镜上。光谱仪光学系统采用白瞳设计,光束口径92.5mm。仪器设有良好的恒温、隔震系统,由光纤引导连接到望远镜的卡焦接口,并配备有平场定标,波长定标及碘蒸汽盒定标装置和独立的导星系统。光谱仪一次曝光可覆盖波长范围为375nm~1000nm,光谱分辨率为40000~60000。

    该仪器的科学目标是进行恒星视向速度测量,高分辨率、高信噪比的星际参数测量和化学元素丰度测量等。从2010年8月仪器交付使用以来,山东大学威海天文台进行了大量的试观测。试观测期间,光谱仪性能优良,工作状态良好。高稳定度的恒温系统和高精度的碘蒸汽吸收装置为高精度视向速度测量提供了有力的保障。试观测中对于视星等8等的恒星,一小时曝光观测的信噪比好于100。

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