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Exoplanet Atmospheres and Photochemistry

Seager, S. and Liang, M.-C. and Parkinson, C. D. and Yung, Y. L. (2005) Exoplanet Atmospheres and Photochemistry. In: Astrochemistry: Recent Successes and Current Challenges. Proceedings of the International Astronomical Union. Vol.1. No.S231. Cambridge University Press , pp. 491-498.

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Over 150 extrasolar planets are known to orbit sun-like stars. A growing number of them (9 to date) are transiting “hot Jupiters” whose physical characteristics can be measured. Atmospheres of two of these planets have already been detected. We summarize the atmosphere detections and useful upper limits, focusing on the MOST albedo upper limit and II exosphere detection for IID 209458b as the most relevant for photochemical models. We describe our photochemical model for hot Jupiters and present a summary explanation of the main results: a low gas-phase abundance of hydrocarbons; an absence of hydrocarbon hazes; and a large reservoir of II atoms in the upper atmospheres of hot Jupiters. We conclude by relating these model results to the relevant observational data.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Seager, S.0000-0002-6892-6948
Liang, M.-C.0000-0002-5294-9344
Parkinson, C. D.0000-0002-5722-2224
Yung, Y. L.0000-0002-4263-2562
Additional Information:© 2006 International Astronomical Union. Published online: 21 March 2006. S.S. thank the conference organizers for an interesting meeting.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Subject Keywords:planetary systems; radiative transfer
Series Name:Proceedings of the International Astronomical Union
Issue or Number:S231
Record Number:CaltechAUTHORS:20140826-084801376
Persistent URL:
Official Citation:Exoplanet Atmospheres and Photochemistry S. Seager, M.-C. Liang, C. D. Parkinson and Y. L. Yung Proceedings of the International Astronomical Union / Volume 1 / Symposium S231 / August 2005, pp 491 - 498 2006 International Astronomical Union DOI: Published online: 21 March 2006
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48889
Deposited By: Ruth Sustaita
Deposited On:26 Aug 2014 17:00
Last Modified:10 Nov 2021 18:37

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