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Reconstructing the Stellar UV and EUV Emission that Controls the Chemistry of Exoplanet Atmospheres

Published online by Cambridge University Press:  29 April 2014

Jeffrey L. Linsky ,
Kevin France  and
Tom Ayres
Jeffrey L. Linsky
Affiliation:
JILA, University of Colorado and NIST, Boulder CO 80309-0440, USA email: [email protected]
Kevin France
Affiliation:
CASA, University of Colorado, Boulder CO 80309-0389, USA
Tom Ayres
Affiliation:
CASA, University of Colorado, Boulder CO 80309-0389, USA
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Abstract

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Lyman-α and extreme-ultraviolet radiation from exoplanet host stars are critically important for evaluating the phototchemistry of planetary atmospheres, but these emissions are largely or completely absorbed by hydrogen in the interstellar medium. We describe a new technique for estimating the intrinsic Lyman-α and EUV fluxes of F, G, K, and M stars using correlations with observable emission lines.

Keywords

exoplanet atmospheresultraviolet stellar spectraextreme ultraviolet stellar spectrahydrogen Lyman-α emission
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S293: Formation, Detection, and Characterization of Extrasolar Habitable Planets , August 2012 , pp. 309 - 314
Copyright
Copyright © International Astronomical Union 2014 

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