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astro-ph2000
Dynamics of Stellar Collisions
Joshua E. Barnes
I compare gas-dynamical and stellar-dynamical models of collisions. These two models have distinctly different physics; for example, shocks introduce irreversibility in gas systems…
astro-ph2000
Gas Dynamics in Galaxy Mergers
Joshua E. Barnes
In interacting and merging galaxies, gas is subject to direct hydrodynamic effects as well as tidal forces. One consequence of interactions is the rapid inflows of gas which may fu…