APF -利克天文台自动行星探测器
APF - The Lick Observatory Automated Planet Finder
摘要：
自动行星探测器（Automated Planet Accelerator，简称APF）是一个专门为发现太阳系外行星而建造的设施，通过对其宿主恒星的反射重心加速度进行高节奏多普勒测速来发现和表征太阳系外行星。位于Mt.汉密尔顿，APF设施包括一个2.4米望远镜和它的列维光谱仪，一个光学阶梯光谱仪优化精密多普勒测速。APF具有374 nm - 970 nm的固定格式光谱范围，并提供114，000弧秒的“分辨率”（分辨率 * 狭缝宽度乘积），光谱分辨率高达150，000。在行星搜寻模式下，在560 nm处闪耀时的总系统效率（入射在主镜上的由科学CCD检测到的光子的分数）为15%。在RV标准恒星HD 185144和HD 9407上进行的第一次光测试表明，在3个月的时间内保持了每秒亚米的精度（每次观测的RMS）。本文回顾了望远镜、圆顶和分光计的基本特点，并对第一光的性能作了简要的总结。
英文摘要：
The Automated Planet Finder (APF) is a facility purpose-built for the discovery and characterization of extrasolar planets through high-cadence Doppler velocimetry of the reflex barycentric accelerations of their host stars. Located atop Mt. Hamilton, the APF facility consists of a 2.4-m telescope and its Levy spectrometer, an optical echelle spectrometer optimized for precision Doppler velocimetry. APF features a fixed format spectral range from 374 nm - 970 nm, and delivers a "Throughput" (resolution * slit width product) of 114,000 arc-seconds, with spectral resolutions up to 150,000. Overall system efficiency (fraction of photons incident on the primary mirror that are detected by the science CCD) on blaze at 560 nm in planet-hunting mode is 15%. First-light tests on the RV standard stars HD 185144 and HD 9407 demonstrate sub-meter per second precision (RMS per observation) held over a 3-month period. This paper reviews the basic features of the telescope, dome, and spectrometer, and gives a brief summary of first-light performance.
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