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Whether it be due to rapid rotation or binary interactions, deviations fromspherical symmetry are common in massive stars. These deviations from sphericalsymmetry are known to cause non-uniform distributions of various parametersacross the surface including temperature, which can drive internal mixingprocesses within the envelopes of these massive stars. Despite how common these3D distortions are, they are often neglected in spectroscopic analyses. Wepresent a new spectral analysis code called SPAMMS (Spectroscopic PAtch Modelfor Massive Stars) specifically designed to analyze non-spherical systems. Wediscuss how the code works and discuss its assumptions. Furthermore, wedemonstrate how SPAMMS can be applied to a variety of different types ofsystems and we show how it can model 3D effects in a way that current analysistechniques are not able to.

SPAMMS: applications and use cases for the 3D spectroscopic analysis technique to study deformed massive stars