Keck Planet Finder: preliminary design

Steven R. Gibson; Andrew W. Howard; Arpita Roy; Christopher Smith; Sam Halverson; Jerry Edelstein; Marc Kassis; Edward H. Wishnow; Michael Raffanti; Steve Allen; Jason Chin; David Coutts; David Cowley; Jim Curtis; William Deich; Tobias Feger; Daniel Finstad; Yulia Gurevich; Yuzo Ishikawa; Ean James; Elisha Jhoti; Kyle Lanclos; Scott Lilley; Tim Miller; Steve Milner; Tom Payne; Kodi Rider; Constance Rockosi; Dale Sandford; Christian Schwab; Andreas Seifahrt; Martin M. Sirk; Roger Smith; Julian Stuermer; Marie Weisfeiler; Mavourneen Wilcox; Adam Vandenberg; Peter Wizinowich

doi:10.1117/12.2311565

6 July 2018 Keck Planet Finder: preliminary design

Steven R. Gibson, Andrew W. Howard, Arpita Roy, Christopher Smith, Sam Halverson, Jerry Edelstein, Marc Kassis, Edward H. Wishnow, Michael Raffanti, Steve Allen, Jason Chin, David Coutts, David Cowley, Jim Curtis, William Deich, Tobias Feger, Daniel Finstad, Yulia Gurevich, Yuzo Ishikawa, Ean James, Elisha Jhoti, Kyle Lanclos, Scott Lilley, Tim Miller, Steve Milner, Tom Payne, Kodi Rider, Constance Rockosi, Dale Sandford, Christian Schwab, Andreas Seifahrt, Martin M. Sirk, Roger Smith, Julian Stuermer, Marie Weisfeiler, Mavourneen Wilcox, Adam Vandenberg, Peter Wizinowich

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107025X (2018) https://doi.org/10.1117/12.2311565
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Keck Planet Finder (KPF) is a fiber-fed, high-resolution, high-stability spectrometer in development for the W.M. Keck Observatory. The instrument recently passed its preliminary design review and is currently in the detailed design phase. KPF is designed to characterize exoplanets using Doppler spectroscopy with a single measurement precision of 0.5 m s⁻¹ or better; however, its resolution and stability will enable a wide variety of other astrophysical pursuits. KPF will have a 200 mm collimated beam diameter and a resolving power greater than 80,000. The design includes a green channel (445 nm to 600 nm) and red channel (600 nm to 870 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, Andrew W. Howard, Arpita Roy, Christopher Smith, Sam Halverson, Jerry Edelstein, Marc Kassis, Edward H. Wishnow, Michael Raffanti, Steve Allen, Jason Chin, David Coutts, David Cowley, Jim Curtis, William Deich, Tobias Feger, Daniel Finstad, Yulia Gurevich, Yuzo Ishikawa, Ean James, Elisha Jhoti, Kyle Lanclos, Scott Lilley, Tim Miller, Steve Milner, Tom Payne, Kodi Rider, Constance Rockosi, Dale Sandford, Christian Schwab, Andreas Seifahrt, Martin M. Sirk, Roger Smith, Julian Stuermer, Marie Weisfeiler, Mavourneen Wilcox, Adam Vandenberg, and Peter Wizinowich "Keck Planet Finder: preliminary design", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107025X (6 July 2018); https://doi.org/10.1117/12.2311565

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