Collisional model of asteroids and their debris

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The discussion revolves around the urgent request for the article "Collisional model of asteroids and their debris" by J.S. Dohnanyi, published in 1969. Participants express a need for access to this article, highlighting its significance in understanding asteroid dynamics. Additionally, a related study on the effects of non-destructive collisions among Main Belt asteroids is mentioned, emphasizing the importance of parameters like size distribution and energy thresholds in collision dynamics. The conversation reflects a broader interest in the statistical modeling of asteroid behavior and orbital mobility. Access to these studies is deemed critical for ongoing research in the field.
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Can anyone send me this article? its urgent!

Title:
Collisional model of asteroids and their debris
Authors:
Dohnanyi, J. S.
Publication:
J. Geophys. Res., vol. 74, p. 2431-2554 (1969). (JGR Homepage)
Publication Date:
00/1969
Origin:
AP
Bibliographic Code:
1969JGR...74.2431D

[send me pm if you have it and i will give you e-mail]

thanks!
 
Astronomy news on Phys.org
thanks , that was helpful!
 
Can anyone send me THIS article? its urgent! :D

seriously i REALLY need it ...

The random walk of Main Belt asteroids: orbital mobility by non-destructive collisions
A. Dell'Oro and A. Cellino
National Institut for Astrophysics, Astronomical Observatory of Turin, Strada Osservatorio 20, Pino Torinese 10025, Italy
Monthly Notices of the Royal Astronomical Society

Non-destructive collisions among Main Belt asteroids have effects on their orbits due to the transmission of linear momentum. The efficiency of this mechanism depends on several parameters which are currently poorly known. The most critical aspects are (i) the inventory and size distribution of small Main Belt asteroids, with sizes well below a few kilometres; (ii) the energy threshold for collisional fragmentation and fragment dispersion and (iii) the efficiency of linear momentum transfer. In spite of these difficulties, a general statistical model of the dynamical effects of non-destructive collisions can be developed, and is presented here. Based on this model, the consequences of different assumptions concerning the asteroid size distribution and collision physics are computed and discussed. Quantitative evaluations of the collisionally induced orbital mobility in different possible scenarios are presented.

http://www3.interscience.wiley.com/journal/117975552/abstract?CRETRY=1&SRETRY=0
 

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