Classifying the satellite plane membership of Centaurus A's dwarf galaxies using orbital alignment constraints

The flattened, possibly co-rotating plane of satellite galaxies around Centaurus A, if more than a fortuitous alignment, adds to the pre-existing tension between the well-studied Milky Way and M31 planes and the \LambdaCDM model of structure formation. It was recently reported that the Centaurus A satellite plane (CASP) may be... Show more