Publication Date:
2019-07-19
Description:
Measurements of transiting exoplanets that target extremes in parameter space offer the best chance to disentangle the structure and composition of the atmospheres of hot Jupiters. WASP-19b is one of the hottest exoplanets discovered to date, while WASP-17b has a much lower equilibrium temperature but has one of the largest atmospheric radii of known transiting planets. We discuss results from HST/WFC3 grism 1.1-1.7 micron spectroscopy of these planets during transit. We compare our integrated-light transit depths to previous IR transit photometry, and derive the 1.4-micron water absorption spectrum. We discuss implications for the atmospheric composition and structure of these hot Jupiters, and outline future observations that will further expand on these results.
Keywords:
Lunar and Planetary Science and Exploration
Type:
GSFC.ABS.5720.2011
,
Exoclimes 2012: The Diversity of Planetary Atmospheres; Jan 16, 2012 - Jan 20, 2012; Aspen, CO; United States
Format:
application/pdf