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Table 1

Comparing the number of constraints and parameters between minor and major mergers.

Constraints Major merger Minor merger Model parameters

Loops shape Y Y inclination, orbital parameters, view angle
Loops mass Y Y mass ratio, gas fraction
B/T Y N mass ratio, star formation history, gas fraction
Rotation curve Y N initial conditions
Gas warp Y N inclination, orbital parameters
disc scalelength Y N inclination, orbit parameters, mass ratio

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