Methane in Pluto's Atmosphere

Details Methane in Pluto's Atmosphere Methane in Pluto's Atmosphere

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.3107r&link_type=abstract

American Astronomical Society, DPS meeting #38, #31.07; Bulletin of the American Astronomical Society, Vol. 38, p.542

Astronomy and Astrophysics

Astronomy

Scientific paper

The abundance of methane in Pluto's atmosphere has not been remeasured since its initial detection in 1992 by Young et al. (1997). As Pluto recedes from the Sun its atmosphere should eventually collapse and freeze out on the surface, but recent occultation observations (Elliot et al. 2003) show an expansion of the atmosphere rather than contraction. New measurements of Pluto's atmospheric methane abundance are warranted. We obtained high resolution (R=25000) near-infrared spectra of Pluto in July 2006 with NIRSPEC at the W.M. Keck II telescope and will report our initial analysis and results.

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