Modelling of Shape Changes of the Nuclei of Comets C/1995 O1 Hale–Bopp and 46P/Wirtanen Caused by Water Ice Sublimation |
| |
| Authors: | Dziak-Jankowska Beata Leliwa-Kopystyński Jacek Królikowska Ma? Gorzata |
| |
| Institution: | (1) Institute of Geophysics, University of Warsaw, ul. Pasteura 7, 02-093 Warszawa, Poland;(2) Space Research Centre of the Polish Academy of Sciences, ul. Bartycka 18A, 00-716 Warszawa, Poland |
| |
| Abstract: | The aim of this modelling work is to assess shape changes of cometary nuclei caused by sublimation of ices. The simplest possible
model is assumed with the nucleus being initially spherical and its thermal conductivity being neglected. We have calculated
the time-dependent sublimation flux versus cometographic latitude. If the rotation axis of the comet is inclined to the orbital
plane, then sublimation leads to non-symmetrical changes of the nucleus shape. Calculations were performed for the nuclei
of comets Hale–Bopp and Wirtanen. |
| |
| Keywords: | C/1995 O1 Hale– Bopp 46P/Wirtanen cometary nuclei shape changes sublimation |
| 本文献已被 SpringerLink 等数据库收录！ |
