Origin of multikilometer earth- and mars-crossing asteroids: A quantitative simulation
نویسندگان
چکیده
Orbital dynamic simulations show that many asteroids in the main asteroid belt are driven toward Mars-crossing orbits by numerous weak mean motion resonances, which slowly increase the orbital ellipticity of the asteroids. In addition, half of the Mars-crossing asteroids (MCAs) transition to Earth-crossing asteroids (ECAs) in less than 20 million years. This scenario quantitatively explains the observed number of large ECAs and MCAs.
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ورودعنوان ژورنال:
- Science
دوره 281 5385 شماره
صفحات -
تاریخ انتشار 1998