Laboratory spectra of N2 and CH4 mixtures: Applications to Observations of TNOs

Details Laboratory spectra of N2 and CH4 mixtures: Applications to Observations of TNOs Laboratory spectra of N2 and CH4 mixtures: Applications to Observations of TNOs

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1586m&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1586

Computer Science

Scientific paper

CH4-ice has multiple low temperature phases that have distinct spectra [1]. In the laboratory, infrared spectra CH4-ice diluted in N2 have absorptions that are different in shape, location, and strength compared to those of pure CH4-ice [2]. However, the full range of dilutions and changes with temperature have not been consistently explored for α-N2-ices. Although, β-N2 ices are common throughout the outer solar system, there are also surfaces where the temperatures are low enough for α-N2 to survive. Recent observations of Eris [3] demonstrate that the surfaces of TNOs may consists of a complex mixture of ices of different phases and dilutions.

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