SIMBAD references

2019AJ....157...58D - Astron. J., 157, 58-58 (2019/February-0)

High-resolution transit spectroscopy of warm saturns.

DEIBERT E.K., DE MOOIJ E.J.W., JAYAWARDHANA R., FORTNEY J.J., BROGI M., RUSTAMKULOV Z. and TAMURA M.

Abstract (from CDS):

We present high-resolution optical transmission spectroscopy of two sub-Saturn mass transiting exoplanets, HAT-P-12b and WASP-69b. With relatively low densities and high atmospheric scale heights, these planets are particularly well-suited to characterization through transit spectroscopy, and serve as ideal candidates for extending previously tested methods to lower planetary masses. Using a single transit for each planet, we take advantage of the Doppler cross-correlation technique to search for sodium, potassium, and water absorption features. Our analysis reveals a likely (3.2σ) detection of sodium absorption features in the atmosphere of HAT-P-12b, and enables us to place constraints on the presence of alkaline and molecular species in the atmospheres of both planets. With our results, we highlight the efficacy of ground-based campaigns for characterizing exoplanetary atmospheres and pave the way for future analyses of low-mass planets.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): planets and satellites: atmospheres - planets and satellites: gaseous planets - techniques: spectroscopic

Simbad objects: 8

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2019.10.21-06:06:06

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