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Hubble/WFC3 Spectroscopy of the Transiting Exoplanets WASP-19b and WASP-17bMeasurements 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.
Document ID
20120003671
Acquisition Source
Goddard Space Flight Center
Document Type
Presentation
Authors
Mandell, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Haynes, K. (George Mason Univ. Greenbelt, MD, United States)
Sinukoff, E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Deming, D.
Wlikins, A.
Madhusudhan, N. (Princeton Univ. Princeton, NJ, United States)
Agol, E. (Washington Univ. Seattle, WA, United States)
Burrows, A. (Princeton Univ. Princeton, NJ, United States)
Charbonneau, D.
Gilliland, R.
Knutson, H. (California Inst. of Tech. Pasadena, CA, United States)
Ranjan, S.
Seager, S. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Showman, A. (Arizona Univ. Tucson, AZ, United States)
Date Acquired
August 25, 2013
Publication Date
January 16, 2012
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
GSFC.ABS.5720.2011
Meeting Information
Meeting: Exoclimes 2012: The Diversity of Planetary Atmospheres
Location: Aspen, CO
Country: United States
Start Date: January 16, 2012
End Date: January 20, 2012
Sponsors: Exeter Univ.
Distribution Limits
Public
Copyright
Public Use Permitted.

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