학술논문
Surface Compositions Across Pluto and Charon
Document Type
Working Paper
Author
Grundy, W. M.; Binzel, R. P.; Buratti, B. J.; Cook, J. C.; Cruikshank, D. P.; Ore, C. M. Dalle; Earle, A. M.; Ennico, K.; Howett, C. J. A.; Lunsford, A. W.; Olkin, C. B.; Parker, A. H.; Philippe, S.; Protopapa, S.; Quirico, E.; Reuter, D. C.; Schmitt, B.; Singer, K. N.; Verbiscer, A. J.; Beyer, R. A.; Buie, M. W.; Cheng, A. F.; Jennings, D. E.; Linscott, I. R.; Parker, J. Wm.; Schenk, P. M.; Spencer, J. R.; Stansberry, J. A.; Stern, S. A.; Throop, H. B.; Tsang, C. C. C.; Weaver, H. A.; Weigle II, G. E.; Young, L. A.; Team, the New Horizons Science
Source
Subject
Language
Abstract
The New Horizons spacecraft mapped colors and infrared spectra across the encounter hemispheres of Pluto and Charon. The volatile ices CH$_4$, CO, and N$_2$, that dominate Pluto's surface, have complicated spatial distributions resulting from sublimation, condensation, and glacial flow acting over seasonal and geological timescales. Pluto's H$_2$O ice "bedrock" is also mapped, with isolated outcrops occurring in a variety of settings. Pluto's surface exhibits complex regional color diversity associated with its distinct provinces. Charon's color pattern is simpler, dominated by neutral low latitudes and a reddish northern polar region. Charon near infrared spectra reveal highly localized areas with strong NH$_3$ absorption tied to small craters with relatively fresh-appearing impact ejecta.
Comment: in Science 351, aad9189 (2016)
Comment: in Science 351, aad9189 (2016)