Statistics – Applications
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21711205n&link_type=abstract
American Astronomical Society, AAS Meeting #217, #112.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Statistics
Applications
Scientific paper
It is well known that silicate dust plays an important role in many astrophysical environments with an emphasis in the literature on olivines and pyroxenes due to their lower condensation temperature. However these two types of silicates tend to be Al-free and it would be remiss to exclude the role of Al from silicate dust. For example, Al is seen in CAI (Ca-Al inclusions) in primitive meteorites and the Al is the fourth most abundant metal after Si, Mg, and Fe. However, we expand upon the currently presented knowledge of the role of Al in silicate dust by looking more closely at the structure (polymerization) represented in NBO/T ratio (Non-bridging oxygens to SiO4 tetrahedra). We present a sample of silicates of known Al abundance and discuss how the Al affects these samples both physically and spectrally. Potential applications of these data are also discussed.
Hofmeister Anne
Newgard Arielle L.
Speck Angela
Tartar Josh
Whittington Alan
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