Computer Science
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002em%26p...90..293s&link_type=abstract
Earth, Moon, and Planets, v. 90, Issue 1, p. 293-303 (2002).
Computer Science
4
Cometary Nuclei, P/Borrelly, Surfaces, Thermal Models
Scientific paper
In this work, we continue revising the theoretical basis ofnumerical models describing the transport of matter andenergy inside a porous dust-ice mixture at low temperature. Amodel of a light-absorbing near-surface layer of a comet nucleus isinvestigated. Gas transport is considered simultaneously with thesolution of the general heat transfer equation. Thequasi-stationary temperature distribution and the H2O massflux and sublimation rate are computed for a nucleus model ofcomet 19P/Borrelly at the Deep Space 1 (DS1) encounter. Theenergy is deposited in a layer of about 20 particle radii: Thiscorresponds to a solid-state greenhouse effect. The surfacetemperature of the layer-absorbing model as well as the gasproduction rate are significantly smaller than the ones in thesurface-absorbing model. An active fraction of 40-50% would berequired to explain the observed water production rate ofP/Borrelly with our layer-absorption model at the time of the DS1encounter.
Davidsson Björn J. R.
Jorda Laurent
Skorov Yuri V.
Uwe Keller Horst
No associations
LandOfFree
Thermophysical Modelling of Comet P/Borrelly Effects of Volume Energy Absorption and Volume Sublimation 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 Thermophysical Modelling of Comet P/Borrelly Effects of Volume Energy Absorption and Volume Sublimation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermophysical Modelling of Comet P/Borrelly Effects of Volume Energy Absorption and Volume Sublimation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1893774