Downloads: 38

Files in This Item:
File Description SizeFormat 
mfeku_55_4_171.pdf551.45 kBAdobe PDFView/Open
Title: The Transport of Super-volatiles through Cometary Nuclei by Radio-active Heating
Authors: YABUSHITA, Shin
Issue Date: 29-Oct-1993
Publisher: Faculty of Engineering, Kyoto University
Journal title: Memoirs of the Faculty of Engineering, Kyoto University
Volume: 55
Issue: 4
Start page: 171
End page: 182
Abstract: Investigation is made of the transport of volatile molecules such as N₂ or CO through cometary nuclei as they are heated by radio-active elements. Coupled equations of heat and gas transport in the presence of gas sublimation and recondensation as well as heat source are numerically solved. For the sake of numerical stability, it is necessary to take a small value for the effective surface area where sublimation and condensation take place. It is shown that the super-volatiles such as N₂ or CO are transported through the pores of the nucleus and consequently, the volatile molecules become more abundant near the surface than deep inside the nucleus. Such a modification of structure is expected to have observational consequences on activities at large heliocentric distances of comets such as P/Schwassmann-Wachmann Ⅰ and Bowell.
URI: http://hdl.handle.net/2433/281483
Appears in Collections:Vol.55 Part 4

Show full item record

Export to RefWorks


Export Format: 


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.