Thermal stresses and dust dynamics on comets

Details Thermal stresses and dust dynamics on comets Thermal stresses and dust dynamics on comets

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250b.385k&link_type=abstract

In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 2: Dust and Nucleus p 385-388 (SEE N

Physics

Comet Nuclei, Comets, Cosmic Dust, Evolution (Development), Thermal Stresses, Crack Initiation, Gravitational Effects, Outgassing, Surface Properties

Scientific paper

Two processes that may have an important influence on the evolution of comets are discussed: thermal stresses and the gas-dust dynamics near the cometary surface. Thermal stresses due to the temperature differences between the surface and the core of the nucleus are calculated for different structure models. It is shown that for comets of P/Halley-type orbits thermal stresses exceed the strength of water ice near to the surface resulting in cracks, splits, and outbursts. Further it is demonstrated that due to cometary gravitation and inhomogeneous outgassing initially emitted dust can be redeposited at the cometary surface. The consequences of both processes for cometary activity are discussed.

Affiliated with

Also associated with

No associations

Rating

Thermal stresses and dust dynamics on comets 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 Thermal stresses and dust dynamics on comets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal stresses and dust dynamics on comets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1122986