The Astronomical Journal

Rotational Spectral Unmixing of Exoplanets: Degeneracies between Surface Colors and Geography

Yuka Fujii^1,2, Jacob Lustig-Yaeger^3,4,5, and Nicolas B. Cowan^6,7

¹ NASA Goddard Institute for Space Studies, New York, NY 10025, USA

² Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, 152-8550, Japan

³ Astronomy Department, University of Washington, Box 951580, Seattle, WA 98195, USA

⁴ Astrobiology Program, University of Washington, 3910 15th Avenue NE, Box 351580, Seattle, WA 98195, USA

⁵ NASA Astrobiology Institute--Virtual Planetary Laboratory Lead Team, USA

⁶ Department of Earth and Planetary Sciences, McGill University, Montreal, Quebec, H3A 0E8, Canada

⁷ Department of Physics, McGill University, Montreal, Quebec, H3A 0E8, Canada

October 17, 2017