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Interfacial tension-driven differentiation-(ITDD) may result in a low-density central region inside kilometer-sized bodies

Autor
Arias, F.J.
Tipus d'activitat
Article en revista
Revista
Planetary and space science
Data de publicació
2016-03
Volum
122
Pàgina inicial
88
Pàgina final
93
DOI
https://doi.org/10.1016/j.pss.2016.01.010 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0032063316000180 Obrir en finestra nova
Resum
Interfacial Tension-Driven Differentiation, (ITDD), and its possible significance with regards to the interior structures of kilometer-sized bodies is discussed. Using a simple physical and geometrical model, an analytical expression for the conditions in which ITDD can occur is derived. It is shown that ITDD coupled with internal convection can lead to a counterintuitive result: that central regions may be less dense than outer regions in km-sized, initially melted bodies. ITDD offers an altern...
Paraules clau
Differentiation, Interfacial Tension-Driven Differentiation-(ITDD), Low-density central region, Microporosity, Rubble-pile model, Small kilometer-sized bodies

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