The habitable-zone planet finder calibration system

Samuel Halverson; Suvrath Mahadevan; Lawrence Ramsey; Ryan Terrien; Arpita Roy; Christian Schwab; Chad Bender; Fred Hearty; Eric Levi; Steve Osterman; Gabe Ycas; Scott Diddams

doi:10.1117/12.2054967

28 July 2014 The habitable-zone planet finder calibration system

Samuel Halverson, Suvrath Mahadevan, Lawrence Ramsey, Ryan Terrien, Arpita Roy, Christian Schwab, Chad Bender, Fred Hearty, Eric Levi, Steve Osterman, Gabe Ycas, Scott Diddams

Author Affiliations +

Proceedings Volume 9147, Ground-based and Airborne Instrumentation for Astronomy V; 91477Z (2014) https://doi.org/10.1117/12.2054967
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

We present the design concept of the wavelength calibration system for the Habitable-zone Planet Finder instrument (HPF), a precision radial velocity (RV) spectrograph designed to detect terrestrial-mass planets around M-dwarfs. HPF is a stabilized, fiber-fed, R~50,000 spectrograph operating in the near-infrared (NIR) z/Y/J bands from 0.84 to 1.3 microns. For HPF to achieve 1 m s^-1 or better measurement precision, a unique calibration system, stable to several times better precision, will be needed to accurately remove instrumental effects at an unprecedented level in the NIR. The primary wavelength calibration source is a laser frequency comb (LFC), currently in development at NIST Boulder, discussed separately in these proceedings. The LFC will be supplemented by a stabilized single-mode fiber Fabry-Perot interferometer reference source and Uranium-Neon lamp. The HPF calibration system will combine several other new technologies developed by the Penn State Optical-Infrared instrumentation group to improve RV measurement precision including a dynamic optical coupling system that significantly reduces modal noise effects. Each component has been thoroughly tested in the laboratory and has demonstrated significant performance gains over previous NIR calibration systems.

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Samuel Halverson, Suvrath Mahadevan, Lawrence Ramsey, Ryan Terrien, Arpita Roy, Christian Schwab, Chad Bender, Fred Hearty, Eric Levi, Steve Osterman, Gabe Ycas, and Scott Diddams "The habitable-zone planet finder calibration system", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91477Z (28 July 2014); https://doi.org/10.1117/12.2054967

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