Measurement of D/H and 13C/12C ratios in methane ice on Eris and Makemake: Evidence for internal activity

• Published in: Icarus (New York, N.Y. 1962) Vol. 411; p. 115923
• Main Authors: Grundy, W.M., Wong, I., Glein, C.R., Protopapa, S., Holler, B.J., Cook, J.C., Stansberry, J.A., Lunine, J.I., Parker, A.H., Hammel, H.B., Milam, S.N., Brunetto, R., Pinilla-Alonso, N., de Souza Feliciano, A.C., Emery, J.P., Licandro, J.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 15.03.2024
• Subjects: Cosmochemistry; Dwarf planets; Ices; Infrared observations; Transneptunian objects; Dwarf planets; Ices; Transneptunian objects; Infrared observations; Cosmochemistry

James Webb Space Telescope's NIRSpec infrared imaging spectrometer observed the outer solar system dwarf planets Eris and Makemake in reflected sunlight at wavelengths spanning 1 through 5 μm. Both objects have high albedo surfaces that are rich in methane ice, with a texture that permits long...