Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..438c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 187, no. 1-2, Nov. 1987, p. 438-450.
Astronomy and Astrophysics
Astrophysics
52
Condensation, Gas Dynamics, Halley'S Comet, Sublimation, Water Vapor, Coma, Hydrodynamic Equations, Temperature Profiles
Scientific paper
The effects of nucleus ice sublimation and homogeneous recondensation in the fluid expansion region, processes which are associated with the solid-gas phase transition and are assumed to control cometary activity, are investigated. The present gasdynamic models reduce the gas velocities and terminal dust velocities by 5-10 percent with respect to previous treatments. A formula is developed for predicting the momentum loss coefficient required to determine the nongravitational forces exerted on the nucleus. The classical homogeneous nucleus theory is applied, showing that water vapor expands in an initially supersaturated state, with the nucleation rate being smaller than in the case of adiabatic expansion.
No associations
LandOfFree
Improved gas-kinetic treatment of cometary water sublimation and recondensation - Application to comet P/Halley 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 Improved gas-kinetic treatment of cometary water sublimation and recondensation - Application to comet P/Halley, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved gas-kinetic treatment of cometary water sublimation and recondensation - Application to comet P/Halley will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1712677