A three-component warp-and-ring model built from SITELLE ionized gas kinematics reproduces the perturbed velocity field in M31's central kiloparsec and supports a past head-on M32-like collision.
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Central kiloparsec region of Andromeda. I. Dynamical modelling
A three-component warp-and-ring model built from SITELLE ionized gas kinematics reproduces the perturbed velocity field in M31's central kiloparsec and supports a past head-on M32-like collision.