Staring at the Sun with the Keck Planet Finder: An Autonomous Solar Calibrator for High Signal-to-noise Sun-as-a-star Spectra

A. Rubenzahl, Ryan; Halverson, Samuel; Walawender, Josh; M. Hill, Grant; W. Howard, Andrew; Brown, Matthew; Ida, Evan; Tehero, Jerez; J. Fulton, Benjamin; R. Gibson, Steven; Kassis, Marc; Smith, Brett; Wold, T.; Payne, Joel

doi:10.1088/1538-3873/ad0b30

Public

Staring at the Sun with the Keck Planet Finder: An Autonomous Solar Calibrator for High Signal-to-noise Sun-as-a-star Spectra

Published in Publications of the Astronomical Society of the Pacific • Dec 1, 2023

Authors:

Ryan A. Rubenzahl

Samuel Halverson

Josh Walawender

Abstract

Abstract Extreme precision radial velocity (EPRV) measurements contend with internal noise (instrumental systematics) and external noise (intrinsic stellar variability) on the road to 10 cm s −1 “exo-Earth” sensitivity. Both of these noise sources are well-probed using “Sun-as-a-star” RVs and cross-...

Subject

Physics

Observatory

Spectrograph

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