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

http://arxiv.org/abs/1806.11200


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.

Read this paper on arXiv…

T. Kozakis, L. Kaltenegger and D. Hoard
Mon, 2 Jul 18
9/70

Comments: Accepted by ApJ, 23 pages, 8 figures, 6 tables