Delivery of asteroids and meteorites to the inner solar systemTwo major models of asteroid/meteorite demographics are described and reviewed critically: the collisional model of Greenberg and Chapman (1983), and the orbital evolution model of Wetherill (1985). It is shown that each of the two models tends to gloss over the central processes in the other and tends to ignore (and to some degree violate) the key observables that constrain the other model. The uncertainties that prevent definite acceptance of any particular model for the delivery of asteroidal material to the earth are described.
Document ID
19900039981
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Greenberg, Richard (Arizona Univ. Tucson, AZ, United States)
Nolan, Michael C. (Arizona, University Tucson, United States)