Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000dps....32.5715l&link_type=abstract
American Astronomical Society, DPS Meeting #32, #57.15; Bulletin of the American Astronomical Society, Vol. 32, p.1110
Astronomy and Astrophysics
Astronomy
Scientific paper
Since spectral mineral features are sensitive to surface parameters, interpretation of remote-sensing asteroids spectra in terms of mineral composition is not easy nor unique, and laboratory spectra are needed in order to understand the influence of each parameter. We developped an experimental program at IAS, using the 2.5-120 microns interferometer spectrometer, to study the influence of surface parameters on mineral features. We present here the results obtained variing the grain size. We studied grain size effects with two types of terrestrial rocks: anorthosite (bright) and basalte (dark) in the 2-40 microns range. We observed variations of the spectral contrast with grain size, shifts in wavelengths and variations of the intensity of some characteristic spectral features, and appearence of transparency features at wavelengths longer than 8 microns.
Erard Stephane
Fulchignoni Marcello
Le Bras A.
No associations
LandOfFree
Laboratory Reflectance Spectra in the Middle-infrared: Effects of Grain Size on Spectral Features does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Laboratory Reflectance Spectra in the Middle-infrared: Effects of Grain Size on Spectral Features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laboratory Reflectance Spectra in the Middle-infrared: Effects of Grain Size on Spectral Features will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-867711