Characterization of hot Jupiter atmospheres with Keck/KPIC

Luke Finnerty; Katelyn Horstman; Jean-Baptiste Ruffio; Jason J. Wang; Dimitri Mawet; Tobias Schofield; Ben Sappey; Jerry Xuan; Jacques-Robert Delorme; Nemanja Jovanovic; Geoffrey A. Blake; Michael P. Fitzgerald

doi:10.1117/12.2677777

5 October 2023 Characterization of hot Jupiter atmospheres with Keck/KPIC

Luke Finnerty, Katelyn Horstman, Jean-Baptiste Ruffio, Jason J. Wang, Dimitri Mawet, Tobias Schofield, Ben Sappey, Jerry Xuan, Jacques-Robert Delorme, Nemanja Jovanovic, Geoffrey A. Blake, Michael P. Fitzgerald

Author Affiliations +

Proceedings Volume 12680, Techniques and Instrumentation for Detection of Exoplanets XI; 1268006 (2023) https://doi.org/10.1117/12.2677777
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

Combined light High-Resolution Cross-Correlation Spectroscopy (HRCCS) uses cross-correlation with a model planetary atmosphere to identify/isolate spectral features that show a Doppler shift consistent with the motion of a close-in exoplanet. This technique can be used to retrieve molecular abundances and pressure-temperature profiles for hot Jupiters, offering insight into planet formation and atmospheric chemistry. HRCCS is quite sensitive to instrumental systematics, in particular shifts in wavelength solution, blaze function variation, uncorrected tellurics, and fringing. We discuss the on-sky performance of Keck/KPIC for HRCCS, with a focus on the impact of these systematic effects and mitigation approaches.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Luke Finnerty, Katelyn Horstman, Jean-Baptiste Ruffio, Jason J. Wang, Dimitri Mawet, Tobias Schofield, Ben Sappey, Jerry Xuan, Jacques-Robert Delorme, Nemanja Jovanovic, Geoffrey A. Blake, and Michael P. Fitzgerald "Characterization of hot Jupiter atmospheres with Keck/KPIC", Proc. SPIE 12680, Techniques and Instrumentation for Detection of Exoplanets XI, 1268006 (5 October 2023); https://doi.org/10.1117/12.2677777

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