Discovery of NES, an extended tidal structure in the North-East of the
  Large Magellanic Cloud
  We report on the discovery of a new diffuse stellar sub-structure protruding
for 5 degrees from the North-Eastern rim of the LMC disc. The structure, that
we dub North-East Structure (NES), was identified by applying a Gaussian
Mixture Model to a sample of strictly selected candidate members of the
Magellanic System, extracted from the Gaia EDR3 catalogue. The NES fills the
gap between the outer LMC disk and other known structures in the same region of
the LMC, namely the Northern tidal arm (NTA) and the Eastern sub-structures
(ES). Particularly noteworthy is that the NES is placed in a region where
N-body simulations foresee a bending of the LMC disc due to tidal stresses
induced by the MW. The velocity field in the plane of the sky indicates that
the complex of tidal structures in the North-Eastern part of the LMC, including
NES, is subject to coherent radial motions. Additional data, as well as
extensive dynamical modeling, is required to shed light on the origin of NES as
well as on the relationships with the surrounding substructures.
