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written by William F. Bottke, Jr
This page discusses the  "rubble pile'' model of asteroids.   In it the author maintains that this model provides a better match to observational constraints and new results from numerical impact simulations than other competing models.  It provides evidence for rubble pile asteroids by discussing the rotation period of small asteroids, numerical simulations of asteroid collisions, large craters on asteroids, Mathilde's density, and tidal disruption of asteroids and comets.  The author ends with a discussion of the importance in understanding asteroids and asteroid impacts.
Subjects Levels Resource Types
- Solar System
= Asteroids
- Upper Undergraduate
- Lower Undergraduate
- Instructional Material
= Lecture/Presentation
- Reference Material
= Research study
Intended Users Formats Ratings
- Learners
- Researchers
- text/html
- image/gif
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Record Creator:
Metadata instance created March 25, 2004 by Kara Lehman
Record Updated:
October 14, 2006 by Gina Brissenden
Last Update
when Cataloged:
September 10, 1998
Other Collections:

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Record Link
AIP Format
W. Bottke, , WWW Document, (
W. Bottke, Are Asteroids Rubble Piles?, , <>.
APA Format
Bottke, W. (1998, September 10). Are Asteroids Rubble Piles?. Retrieved October 23, 2018, from
Chicago Format
Bottke, William. Are Asteroids Rubble Piles?. September 10, 1998. (accessed 23 October 2018).
MLA Format
Bottke, William. Are Asteroids Rubble Piles?. 10 Sep. 1998. 23 Oct. 2018 <>.
BibTeX Export Format
@misc{ Author = "William Bottke", Title = {Are Asteroids Rubble Piles?}, Volume = {2018}, Number = {23 October 2018}, Month = {September 10, 1998}, Year = {} }
Refer Export Format

%A William Bottke
%T Are Asteroids Rubble Piles?
%D September 10, 1998
%O text/html

EndNote Export Format

%0 Electronic Source
%A Bottke, William
%D September 10, 1998
%T Are Asteroids Rubble Piles?
%V 2018
%N 23 October 2018
%8 September 10, 1998
%9 text/html

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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