Constraints on Pluto's density and composition

Details Constraints on Pluto's density and composition Constraints on Pluto's density and composition

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...73..269s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 73, Feb. 1988, p. 269-278.

Astronomy and Astrophysics

Astronomy

9

Planetary Composition, Pluto (Planet), Charon, Constraints, Density (Mass/Volume), Eclipses, Planetary Evolution, Planetary Mass, Pluto, Physical Properties, Density, Composition, Parameters, Mass, Pluto-Charon System, Eclipses, Astronomy, Calculations, Size, Radius, Numerical Methods, Structure, Procedure, Comparisons

Scientific paper

By combining the bulk-parameter constraints placed on the Pluto-Charon system by the 1987 Pluto-Charon eclipse observations, IRAS data, and an occultation of Charon, it is possible to isolate Pluto's density from the bulk density of Pluto-Charon. It can now be demonstrated that Pluto's density must lie between 1.07 and 2.42 g/cm3. More severe constraints may be obtained by assuming that most of the Pluto-Charon system mass is in Pluto. The limits on Pluto's density derived here imply that Pluto is primarly composed of water ice and materials like the C1 chondrites; however, the presence of some high-density material cannot yet be ruled out.

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