Monitoring the surface volatiles on Pluto and Triton

Details Monitoring the surface volatiles on Pluto and Triton Monitoring the surface volatiles on Pluto and Triton

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000noao.prop..262b&link_type=abstract

NOAO Proposal ID #2000A-0262

Physics

Scientific paper

Pluto and Triton's surfaces are partially composed of active volatile species (eg., n2 and \ch4) that strongly interact with the atmosphere. Driven by the changing seasonal patterns of insolation, these materials experience global-scale seasonal migration, resurfacing large areas of the surface. Pluto has now passed through perihelion and faces a 120 year epoch of diminishing solar insolation. Triton is now at the extreme southern limit of the sub-solar latitude which happens every 650 years. Through spectroscopic monitoring of the volatile inventory we can provide key constraints on the surface and atmospheric evolution. We propose to obtain IR spectra of Pluto and Triton over a full rotation in the 1.2 to 2.4 μm region on the KPNO 2.1-m telescope with ONIS. These spectra will allow us to continue to monitor the geographic distribution, physical state, and texture of n2 and \ch4 ices on the surfaces of Pluto and Triton.

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