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Understanding Exoplanet Atmospheres with UV Observations I: NUV and Blue/Optical

Christiansen, Jessie and Barclay, Thomas and Fossati, Luca and France, Kevin and Lopez, Eric and Rowe, Jason and Schlieder, Joshua and Wakeford, Hannah and Youngblood, Allison and Hardegree-Ullman, Kevin and Gelino, Dawn and Ciardi, David R. (2019) Understanding Exoplanet Atmospheres with UV Observations I: NUV and Blue/Optical. Astro2020 Science White Paper, . (Unpublished)

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Much of the focus of exoplanet atmosphere analysis in the coming decade will be atinfrared wavelengths, with the planned launches of the James Webb Space Telescope (JWST) and the Wide-Field Infrared Survey Telescope (WFIRST). However, without being placed in the context of broader wavelength coverage, especially in the optical and ultraviolet, infrared observations produce an incomplete picture of exoplanet atmospheres. Scattering information encoded in blue optical and near-UV observations can help determine whether muted spectral features observed in the infrared are due to a hazy/cloudy atmosphere, or a clear atmosphere with a higher mean molecular weight. UV observations can identify atmospheric escape and mass loss from exoplanet atmospheres, providing a greater understanding of the atmospheric evolution of exoplanets, along with composition information from above the cloud deck. In this white paper we focus on the science case for exoplanet observations in the near-UV; an accompanying white paper led by Eric Lopez will focus on the science case in the far-UV.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Christiansen, Jessie0000-0002-8035-4778
Barclay, Thomas0000-0001-7139-2724
Fossati, Luca0000-0003-4426-9530
France, Kevin0000-0002-1002-3674
Rowe, Jason0000-0002-5904-1865
Schlieder, Joshua0000-0001-5347-7062
Wakeford, Hannah0000-0003-4328-3867
Youngblood, Allison0000-0002-1176-3391
Hardegree-Ullman, Kevin0000-0003-3702-0382
Gelino, Dawn0000-0003-1274-2784
Ciardi, David R.0000-0002-5741-3047
Group:Infrared Processing and Analysis Center (IPAC)
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20191218-131310865
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100355
Deposited By: Tony Diaz
Deposited On:18 Dec 2019 21:26
Last Modified:18 Dec 2019 21:26

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