SP-345 Evolution of the Solar System

 

FIGURE 18.8.1.- The smoothed (M, a) diagram of fig. 4 3.4.

FIGURE 18.8.1.- The smoothed (M, a) diagram of fig. 4 3.4. Mass distribution in units of grams per radial distance interval of deltaa =0.01 AU. To emphasize the significance of the log scale, high-density regions are darkened. In analogy with fig. 18.6.4, the diagram, diminished by a factor 2/3 and turned upside down, is shown in the upper part of the diagram demonstrating the "hetegonic shadow" effect which produces the inner cutoff of the asteroidal belt. Similarly Jupiter's shadow, which generates the outer cutoff, is shown, as well as the position of Jupiter. Kirkwood gaps from Jovian resonances are also marked. (From Alfvén et al, 1974.)

 
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