Five Key Exoplanet Questions Answered via the Analysis of 25 Hot-Jupiter Atmospheres in Eclipse

Autor: Q. Changeat, B. Edwards, A. F. Al-Refaie, A. Tsiaras, J. W. Skinner, J. Y. K. Cho, K. H. Yip, L. Anisman, M. Ikoma, M. F. Bieger, O. Venot, S. Shibata, I. P. Waldmann, G. Tinetti
Přispěvatelé: Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Rok vydání: 2022
Předmět:
Zdroj: The Astrophysical Journal Supplement Series
The Astrophysical Journal Supplement Series, IOPscience 2022, 260, ⟨10.3847/1538-4365/ac5cc2⟩
ISSN: 1538-4365
0067-0049
DOI: 10.3847/1538-4365/ac5cc2
Popis: Population studies of exoplanets are key to unlocking their statistical properties. So far the inferred properties have been mostly limited to planetary, orbital and stellar parameters extracted from, e.g., Kepler, radial velocity, and GAIA data. More recently an increasing number of exoplanet atmospheres have been observed in detail from space and the ground. Generally, however, these atmospheric studies have focused on individual planets, with the exception of a couple of works which have detected the presence of water vapor and clouds in populations of gaseous planets via transmission spectroscopy. Here, using a suite of retrieval tools, we analyse spectroscopic and photometric data of 25 hot Jupiters, obtained with the Hubble and Spitzer Space Telescopes via the eclipse technique. By applying the tools uniformly across the entire set of 25 planets, we extract robust trends in the thermal structure and chemical properties of hot Jupiters not obtained in past studies. With the recent launch of JWST and the upcoming missions Twinkle, and Ariel, population based studies of exoplanet atmospheres, such as the one presented here, will be a key approach to understanding planet characteristics, formation, and evolution in our galaxy.
66 pages, 23 figures, 7 tables. Published in The Astrophysical Journal Supplement Series
Databáze: OpenAIRE