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We present new interferometer molecular observations of R Leo taken at 1.2 mmwith the Atacama Large Millimeter Array with an angular resolution up to ~0.026arcsec. These observations permit us to resolve the innermost envelope of thisstar revealing the existence of a complex structure that involves extendedcontinuum emission and molecular emission showing a non-radial gas velocitydistribution. This molecular emission displays prominent red-shiftedabsorptions located right in front to the star typical of material infall andlateral gas motions compatible with the presence of a torus-like structure.

Gas infall and possible circumstellar rotation in R Leo