Statistics – Computation
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...76...78h&link_type=abstract
Icarus (ISSN 0019-1035), vol. 76, Oct. 1988, p. 78-88. NASA-supported research.
Statistics
Computation
12
Comet Nuclei, Cometary Atmospheres, Computational Astrophysics, Giotto Mission, Halley'S Comet, Interplanetary Dust, Astronomical Models, Computational Fluid Dynamics, Spacecraft Instruments, Spatial Distribution, Two Dimensional Models
Scientific paper
The Giotto spacecraft's Halley Multicolor Camera images have been used to derive intensity profiles of the jetlike dust features that are associated with active regions of the Comet Halley nucleus. An intensity profile's asymptotic behavior at a radius greater than 100 km from the nucleus can be seen as arising from a source located at a hypothetical point below the active source region. Several source distributions are investigated. The extended source model considers divergent dust flow from an active area of arbitrary shape. It is concluded that the surface is neither smooth nor homogeneous, but must instead be characterized by varying curvature and roughness in order to reflect the observed conical dust flow.
Boice Daniel C.
Delamere Alan W.
Huebner Walter F.
Reitsema Harold J.
Whipple Fred L.
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