Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..767l&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 187, no. 1-2, Nov. 1987, p. 767-773.
Astronomy and Astrophysics
Astrophysics
61
Astronomical Photometry, Cosmic Dust, Distribution Functions, Halley'S Comet, Mass Distribution, Polarization Characteristics, Brightness Distribution, Giotto Mission, Grain Size, Olivine, Silicates, Vega Project
Scientific paper
The dust particle fluences measured aboard the Vega (SP-1 and SP-2 impact sensors) and Giotto probes (DIDSY impact sensors) are analyzed to obtain the differential size distribution function of the dust in the coma of comet Halley. The brightness integral is then calculated for perfectly spherical (Mie scattering) and rough grains of various compositions. It is shown that the photopolarimetric observations rule out the dominating presence of weakly obsorbing silicates such as olivine but are compatible with rough moderately absorbing silicate grains having a density decreasing with radius and with rough graphite grains. A mixture of the two types gives in fact the best agreement with the observations.
Gruen Eberhard
Lamy Philippe L.
Perrin Jean-Marie
No associations
LandOfFree
Comet P/Halley - Implications of the mass distribution function for the photopolarimetric properties of the dust coma 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 Comet P/Halley - Implications of the mass distribution function for the photopolarimetric properties of the dust coma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comet P/Halley - Implications of the mass distribution function for the photopolarimetric properties of the dust coma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1712964