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Fig. 2.

image

Particle energy distribution of the QSS at t = 9 Gyr in units of e0 (see Eq. (4)). The system after the collapse is made of three components: two form the QSS (tail and core) and the third, where e >  0, is made of “free” particles. The core is comprised of particles with radial distance r <  r0; the free particles have positive energy or r >  rf, where rf = rf(t) must be estimated from the numerical data.

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