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The effect of a non-volatile dust mantle on the energy balance of cometary surface layers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Koemle, Norbert I. Steiner, Gerhard |
| Copyright Year | 1992 |
| Description | It is likely that large parts of a cometary surface layer consist of porous ices, which are covered by a thin layer of non-volatile debris, whose structure is also fluffy and porous. In this paper the results of model calculations are presented. The calculations show the effect of ice and dust pore sizes and of the dust mantle thickness upon the thermal behavior of such a dust-ice system, when it is irradiated by the sun. In particular, it is found that the average pore size of the ice and the dust material has a large influence both on the dust surface temperature and on the temperature at the dust-ice interface. |
| File Size | 286174 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930010000 |
| Archival Resource Key | ark:/13960/t3kx09v42 |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Comets Cometary Atmospheres Surface Temperature Ice Thickness Energy Budgets Cosmic Dust Comet Nuclei Temperature Effects Irradiation Porosity Debris Surface Layers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
