IAU Symposium Abstract S186-066T
Gas Dynamics in Mergers
1 Johns Hopkins University, Baltimore, USA (firstname.lastname@example.org)
Interaction-driven inflows of gas are highly dependant on a number
of factors, including the interaction strength, the structure of the
host galaxy, and the evolutionary phase of the encounter. Numerical
simulations allow us to isolate these different factors and examine
the onset and strength of inflows under a variety of conditions.
The differing criteria for local and global instabilities in the gas
suggest that the spatial distribution of interaction-induced star
formation may also be a strong function of galaxy type, with LSB or
bulge-dominated systems having more spatially extended star formation
than high surface brightness late-type spirals. The stability of
galaxies against inflows also has an important affect on the mixing
of stellar populations in merger events.