Fig. 2
Orbit of the light Sgr dSph (6.8 × 108M⊙) in Newtonian dynamics with the LM10 halo without dynamical friction (simulation N2) in red and with dynamical friction estimated through Chandrasekhar’s formula in blue with Coulomb logarithm ln(Λ) = 3. The difference between the two orbits is clearly not very significant for such a light progenitor.
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