Other
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992acm..proc..549s&link_type=abstract
In Lunar and Planetary Inst., Asteroids, Comets, Meteors 1991 p 549-552 (SEE N93-19113 06-90)
Other
2
Asteroids, Astronomical Photometry, Astronomical Polarimetry, Backscattering, Polarization, Albedo, Coherent Scattering, Shadows, Solar System
Scientific paper
The shadow-hiding models for the opposition effect and negative polarization of atmosphereless solar system bodies do not explain some experimental findings, such as the enhancing opposition effect and negative polarization with decreasing particle size down to wavelength scales. The enhancement for laboratory photometric and polarimetric data on artificial glass samples with different particle size is shown. These results are in agreement with the so-called coherent backscattering or interference mechanism proposed for the interpretation of the opposition effect and negative polarization. Two different approaches for describing the opposition effect and negative polarization produced by the shadow-interference mechanism were developed. One is based on exact electromagnetic solutions for simple scattering systems that include dipole-dipole and dipole-surface coupling; The other is based on a point-scatterer approximation characterized by model photometric and polarimetric phase functions, and the mutual shadowing effect is derived using virtual volumes associated with the point-scatterers. Both approaches yield qualitatively similar results, although neither is entirely satisfactory. We regard them as prototypes for a future unified model of shadowing and coherent backscattering. The sharp opposition effect of 44 Nysa and the asteroid albedo-polarization rule are here explained using the point-scatterer approach.
Muinonen Karri
Shkuratov Yu. G.
No associations
LandOfFree
Interpreting asteroid photometry and polarimetry using a model of shadowing and coherent backscattering 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 Interpreting asteroid photometry and polarimetry using a model of shadowing and coherent backscattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpreting asteroid photometry and polarimetry using a model of shadowing and coherent backscattering will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1112826