ALMA CO(1-0) data for IRAS 13120−5453. Top left: moment-zero map. Overplotted are contours for outflow in the range [−690, −270] km s⁻¹ (blue) and [270, 510] km s⁻¹ (red), with contours at [0.55, 0.9, 1.2] mJy beam⁻¹. Top right: spectrum in a r = 1″ aperture centered on the continuum nucleus. The spectrum is decomposed into six Gaussians, four for the double-horned host line profile and two for outflow (green). The black line includes all six Gaussian components. The source hosts a strong outflow component. Center left: center positions and their errors, from UV fitting a Gaussian model to individual velocity channels. Center and bottom right: position-velocity diagrams, along the line core velocity gradient at PA ∼90° and orthogonal to it.