Search for Nonmethane Hydrocarbons on Pluto

Details Search for Nonmethane Hydrocarbons on Pluto Search for Nonmethane Hydrocarbons on Pluto

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...618l..57s&link_type=abstract

The Astrophysical Journal, Volume 618, Issue 1, pp. L57-L60.

Astronomy and Astrophysics

Astronomy

7

Infrared: Solar System, Kuiper Belt, Planets And Satellites: Individual: Pluto

Scientific paper

We have carried out infrared high-resolution spectroscopy of the Pluto-Charon system in the L band with the adaptive optics system on the Subaru telescope. The spectrum is dominated by the strong and broad absorption features of methane but includes some additional features. Comparing the spectrum with model calculations, we suggest that absorption features around 3.1, 3.2, and 3.35 μm could be an indication of nonmethane hydrocarbons on Pluto's uppermost surface. Implications of the estimated mass ratio between hydrocarbons for the formation and evolution of Pluto are discussed.

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