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Approaching cm/sec calibration of high resolution astronomical spectrograph

机译:接近厘米/秒的高分辨率天文光谱仪校准

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Radial Velocity measurements have demonstrated to be the most successful way of finding extra solar planets; this technique has reported the larger quantity of exoplanet so far detected. Finding Earth like type exoplanets demands a cm/sec reproducible spectrograph calibration. A Laser Frequency Comb (LFC) calibration system [1], [2] has been developed and tested in several occasions with the HARPS spectrograph [3] at the 3.6m telescope on La Silla ESO Observatory since January 2009. The LFC shows a number of advantages compared to other traditional calibration sources [4].
机译:径向速度测量已被证明是寻找额外太阳行星的最成功方法。迄今为止,这项技术已报告了更大量的系外行星。寻找像系外行星一样的地球需要厘米/秒的可重复光谱仪校准。自2009年1月以来,已经开发了激光频率梳(LFC)校准系统[1],[2]并在3.6毫米望远镜上的HARPS光谱仪[3]对其进行了多次测试。与其他传统校准源相比的优势[4]。

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