9 August 2016 KPF: Keck Planet Finder
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Abstract
KPF is a fiber-fed, high-resolution, high-stability spectrometer in development at the UC Berkeley Space Sciences Laboratory for the W.M. Keck Observatory. The instrument is designed to characterize exoplanets via Doppler spectroscopy with a single measurement precision of 0.5ms-1 or better, however its resolution and stability will enable a wide variety of astrophysical pursuits. KPF will have a 200mm collimated beam diameter and a resolving power of >80,000. The design includes a green channel (440nm to 590 nm) and red channel (590nm to 850 nm). A novel design aspect of KPF is the use of a Zerodur optical bench, and Zerodur optics with integral mounts, to provide stability against thermal expansion and contraction effects.
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Steven R. Gibson, Steven R. Gibson, Andrew W. Howard, Andrew W. Howard, Geoffrey W. Marcy, Geoffrey W. Marcy, Jerry Edelstein, Jerry Edelstein, Edward H. Wishnow, Edward H. Wishnow, Claire L. Poppett, Claire L. Poppett, } "KPF: Keck Planet Finder", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990870 (9 August 2016); doi: 10.1117/12.2233334; https://doi.org/10.1117/12.2233334
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