English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/3008
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL

A study of water production and temperatures of rotating irregularly shaped cometary nuclei.

AutorGutiérrez, Pedro J. ; Ortiz, José Luis ; Rodrigo Montero, Rafael ; López-Moreno, José Juan
Palabras claveComets: general
Solar system: general
Fecha de publicación21-ene-2000
EditorEDP Sciences
CitaciónAstronomy and Astrophysics, 355, 809-817, (2000)
ResumenCalculations of water production rates and temperatures for rotating irregularly shaped bodies with and without topography are presented. These calculations are compared with the case of a spherical nucleus. For any combination of orbital parameters, rotation axis orientation, spin period, and physical properties of the nucleus (geometric albedo, emissivity, and thermodynamical properties) the heat diffusion equation in the surface normal direction is solved with the energy balance at the surface, which includes shadowing effects, as a boundary condition. This is done for all the cells in which the object is divided and for a complete orbital revolution around the Sun. Some of the main results obtained are: 1) Bodies with topographic features produce more water vapor than equal area spheres along most of their orbits; 2) Asymmetries in the behavior at pre and postperihelion are less pronounced than in the case of the sphere at large heliocentric distances; 3) Jet-like structures in the inner coma can result from topographic features; 4) Diurnal oscillations can be detectable away from perihelion, even for slightly irregular bodies.
Aparece en las colecciones: (IAA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
63.pdf2,49 MBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.