A. Manescau, G. Lo Curto, L. Pasquini, J. G. González Hernández, R. Rebolo, T. Steinmetz, R. Probst, R. Holzwarth, T. Wilken, T. Hansch, T. Udem
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引用次数: 1
摘要
径向速度测量已被证明是发现太阳系外行星最成功的方法;这项技术报道了迄今为止探测到的大量系外行星。寻找类地系外行星需要厘米/秒的可重复光谱仪校准。自2009年1月以来，激光频率梳(Laser Frequency Comb, LFC)校准系统[1]，[2]已在La Silla ESO天文台3.6m望远镜上的HARPS光谱仪[3]上进行了多次测试。与其他传统校准源相比，LFC显示出许多优势[4]。
Approaching cm/sec calibration of high resolution astronomical spectrograph
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].
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