Coma morphology and dust-emission pattern of periodic Comet Halley. II - Nucleus spin vector and modeling of major dust features in 1910

1984 ◽  
Vol 89 ◽  
pp. 1408 ◽  
Author(s):  
Z. Sekanina ◽  
S. M. Larson
Keyword(s):  
Dust Emission ◽  
Spin Vector ◽  
Emission Pattern ◽  
Coma Morphology ◽  
Comet Halley ◽  
Periodic Comet

Coma morphology and dust emission pattern of comet Halley

1985 ◽  
Vol 5 (12) ◽  
pp. 187-196 ◽  
Author(s):  
L. Massonne
Keyword(s):  
Dust Emission ◽  
Emission Pattern ◽  
Coma Morphology ◽  
Comet Halley

scholarly journals Impact-Induced Activity of The Asteroid-Comet P/1996N2 Elst-Pizarro: Yes or No?

1998 ◽  
Vol 11 (1) ◽  
pp. 233-236
Author(s):  
H. Boehnhardt ◽  
Z. Sekanina ◽  
A. Fiedler ◽  
H. Rauer ◽  
R. Schulz ◽  
...  
Keyword(s):  
Solar System ◽  
Dust Emission ◽  
Point Of View ◽  
Asteroid Belt ◽  
Minor Body ◽  
The Impact ◽  
Periodic Comet ◽  
Cometary Activity ◽  
Normal Tail

Abstract P/1996 N2 Elst-Pizarro was discovered with a tail of dust in July 1996 and was thus classified as periodic comet. From the orbit point of view it belongs to the outer asteroid belt and is very likely a member of the Themis family, a group of bodies originating from an asteroid collision. The absence of a coma and the presence of the needle-like anti-tail in August 1996 did not exclude the possibility of a sudden emission event which could have been caused by the impact of another minor body on the object. However, with the development of a normal tail between September and November 1996 it became obvious that the dust emission episode continued at least for 2 months after perihelion, a scenario that is typical for gas-driven cometary activity. However, it is still possible that a collision triggered the event. The paper summarizes the observational pro and cons for impact-induced activity in this object, possibly the first ever detected comet-asteroid of the solar system.

Nuclear Dust Emission Pattern of Comet Wilson 1987 VII

Icarus ◽  
1994 ◽  
Vol 111 (1) ◽  
pp. 237-245 ◽  
Author(s):  
W. Wanlak
Keyword(s):  
Dust Emission ◽  
Emission Pattern ◽  
Nuclear Dust

Ground-based observations of the dust emission from comet Halley

1985 ◽  
Vol 5 (12) ◽  
pp. 317-323 ◽  
Author(s):  
P. Lamy
Keyword(s):  
Dust Emission ◽  
Comet Halley

The light curve of periodic comet Halley 1910 II

1982 ◽  
Vol 87 ◽  
pp. 918 ◽  
Author(s):  
C. S. Morris ◽  
D. W. E. Green
Keyword(s):  
Light Curve ◽  
Comet Halley ◽  
Periodic Comet

scholarly journals Morphology of Cometary Dust Coma and Tail

1996 ◽  
Vol 150 ◽  
pp. 377-382
Author(s):  
Z. Sekanina
Keyword(s):  
Large Scale ◽  
Source Function ◽  
Dust Emission ◽  
Morphological Diversity ◽  
Cometary Dust ◽  
Coma Morphology ◽  
Nucleus Surface ◽  
Dust Tail ◽  
Mass Size ◽  
Dust Coma

AbstractThis paper summarizes some recent progress in our understanding of the morphological diversity of dust comets. This diversity is a product of dust emission from discrete active areas on the nucleus surface and provides information on the comet's rotation state and source function. Advances in computer simulations of large-scale dust coma morphology are described and the diagnostic properties of various dusty features are emphasized. Also addressed are some of the issues of dust tail morphology and particle fragmentation. Finally, constraints on the mass, size, and velocity field of the dust population of comet Shoemaker-Levy 9 are set from the object's morphological observations in 1993-94.

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