Abstract Observations of an unprecedented quality made by ALMA on the Red Rectangle of CO(3–2) and CO(6–5) emissions are analysed jointly with the aim of obtaining as simple as possible a description of the gas morphology and kinematics. Evidence is found for polar conical outflows and for a broad equatorial torus in rotation and expansion. Simple models of both are proposed. Comparing CO(6–5) and CO(3–2) emissions provides evidence for a strong temperature enhancement over the polar outflows. Continuum emission (dust) is seen to be enhanced in the equatorial region. Observed asymmetries are briefly discussed.
Keywords stars: AGB and post-AGB — circumstellar matter — radio-lines: stars — planetary nebulae: individual (Red Rectangle)
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