Comptes Rendus
no. 3
The Near Earth Objects: possible impactors of the Earth/Les astéroïdes geocroiseurs : impacteurs potentiels de la Terre
Internal structure of Near-Earth Objects

Présenté par : Pierre Encrenaz

Richard P. Binzel1  ; Wlodek Kofman2
1 Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2 Laboratoire de planétologie de Grenoble, BP 53, 38041 Grenoble cedex, France
Comptes Rendus. Physique, Volume 6 (2005) no. 3, pp. 321-326.

Pour pouvoir envisager une protection contre les impacts des géocroiseurs (NEO) l'un des paramètres les plus importants est leur structure interne mais celle-ci reste aujourd'hui mal compris. D'un point de vue scientifique, leur structure interne est intrigante. Sa connaissance nous permettra d'appréhender les processus collisionnels et dans le cas des comètes, nous révéler les mécanismes d'accrétion. Dans cet article, nous passons brièvement en revue nos connaissances actuelles concernant les structures internes d'astéroïdes et nous nous concentrons sur l'utilisation des radars et des techniques tomographiques pour les étudier.

For the purposes of mitigation, the internal structure of near-Earth objects (NEOs) remains one of the most important but least understood parameters. From a science point of view, the internal structure is equally intriguing. Knowledge of the internal structure can reveal the collisional history, and in the case of comets, may also reveal the accretional history. Here we briefly review some of our current understanding of asteroid interiors and focus on the application of radar and radiowave tomography techniques that may be applied to study NEO interiors.

Publié le :
DOI : 10.1016/j.crhy.2005.01.001
Keywords: Near-Earth object, Asteroid interior
Mots clés : Géocroiseur, Structure interne d'astéroïdes
Richard P. Binzel 1 ; Wlodek Kofman 2

1 Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2 Laboratoire de planétologie de Grenoble, BP 53, 38041 Grenoble cedex, France 
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Richard P. Binzel; Wlodek Kofman. Internal structure of Near-Earth Objects. Comptes Rendus. Physique, Volume 6 (2005) no. 3, pp. 321-326. doi : 10.1016/j.crhy.2005.01.001. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2005.01.001/

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