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arXiv · 1806.11200

UV Surface Environments and Atmospheres of Earth-like Planets Orbiting White Dwarfs

Thea Kozakis·Lisa Kaltenegger·D. W. Hoard
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Abstract

An Earth-like exoplanet orbiting a white dwarf would be exposed to different UV environments than Earth, influencing both its atmospheric photochemistry and UV surface environment. Using a coupled 1D climate-photochemistry code we model atmospheres of Earth-like planets in the habitable zone of white dwarfs for surface temperatures between 6000 K and 4000 K, corresponding to about 7 billion years of white dwarf evolution, as well as discuss the evolution of planetary models in the habitable zone during that evolution.

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Thea Kozakis, Lisa Kaltenegger, D. W. Hoard. 2018-06-28. UV Surface Environments and Atmospheres of Earth-like Planets Orbiting White Dwarfs. https://doi.org/10.3847/1538-4357%2Faacbc7

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