Categories
MICRON-COSMIC ANALOGS
Summary: AEROSOLS
Micron- cosmic analogs subcategories
Aggregates
Circumstellar shells
Origin
produced in the Condensation Flow Apparatus at the NASA Goddard Space Flight Center
Main constituent
75% MgSiO, 25% MgO no hydrogen in the condensing vapor
Practical significance
for experiments intended to mimic the formation of circumstellar dust
Particle size
modal grain sizes: 50 nm, 30-50 nm
aggregate/cluster sizes: about 650 nm, 150-400nm
Particle shape
high fluffiness
All SEM images (zip file)
Refractive index
real part 1.6
Color
light brown, light-brown magnesiosilica indicative of amorphous MgSiO with a high amount of silica grains; Mg/Si=1.3
Scattering matrix (1) wavelength in nm
Filled squares: 632.8
Scattering matrix (1) plot
Scattering matrix (1) table
Angle range (deg)
[5,174]
Paper (pdf)
Full reference paper
Volten H., Muñoz O., Hovenier JW, Rietmeijer FJM, Nuth JA, Waters LBFM, Van der Zande WJ. Experimental light scattering by fluffy aggregates of magnesiosilica, ferrosilica, and alumina cosmic dust analogs. Astronomy and Astrophysics, 470, 377-386, 2007
BibTeX