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The Watery Atmosphere of HD 209458 b Revealed by Joint K- and L-band High-resolution Spectroscopy

  • Authors: Luke Finnerty, Julie Inglis, Michael P. Fitzgerald, Daniel Echeverri, Nemanja Jovanovic, Dimitri Mawet, Geoffrey A. Blake, Ashley Baker, Randall Bartos, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Greg Doppmann, Katelyn Horstman, Chih-Chun Hsu, Joshua Liberman, Ronald A. López, Evan Morris, Jacklyn Pezzato-Rovner, Jean-Baptiste Ruffio, Ben Sappey, Tobias Schofield, Andrew Skemer, J. Kent Wallace, Nicole L. Wallack, Jason J Wang, 王劲飞, Ji Wang, 王吉, Yinzi Xin, Jerry W. Xuan

Luke Finnerty et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 3.

Top left: retrieved median and maximum-likelihood PT profiles, with 500 PT profiles drawn from the posterior in black. Top right: maximum-likelihood emission contribution function, with observed orders shaded. Center: Fp/Fs for the maximum-likelihood and median retrieved planet models, compared with the expected Fp/Fs assuming the planet and star are blackbodies at their respective equilibrium and effective temperatures. Observed orders are shaded. Bottom: opacities of the species included in the retrieval over the observed bandpass.

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