Element Abundances and Isotope Ratios in the Giant Planets and Titan

Details Element Abundances and Isotope Ratios in the Giant Planets and Titan Element Abundances and Isotope Ratios in the Giant Planets and Titan

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ssrv..106..121o&link_type=abstract

Space Science Reviews, v. 106, Issue 1, p. 121-138 (2003).

Computer Science

27

Scientific paper

This paper reviews our present knowledge about elemental and isotopic ratios in the Giant Planets and Titan. These parameters can provide key information about the formation and evolution of these objects. Element abundances, especially after the results of the Galileo Probe Mass Spectrometer in Jupiter, strongly support the formation model invoking an initial core formation (Mizuno, 1980; Pollack et al., 1996). They also suggest that solar composition icy planetesimals (SCIPs) brought the heavy elements to Jupiter. The Jupiter value of D/H appears to be representative of the protosolar value, while the D/H enrichment observed on Uranus and Neptune is consistent with the formation scenario of these planets. The 15N/14N measurement in Jupiter seems to be representative of its protosolar value. Future measurements are expected to come from the Cassini and Herschel space mission, as well as the ALMA submillimeter observatory.

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