Revisit NGC 5466 Tidal Stream with $Gaia$, SDSS/SEGUE and LAMOST
  By mining the data from $Gaia$ EDR3, SDSS/SEGUE DR16 and LAMOST DR8, 11
member stars of the NGC 5466 tidal stream are detected and 7 of them are newly
identified. To reject contaminators, a variety of cuts are applied in sky
position, color-magnitude diagram, metallicity, proper motion and radial
velocity. We compare our data to a mock stream generated by modeling the
cluster's disruption under a smooth Galactic potential plus the Large
Magellanic Cloud (LMC). The concordant trends in phase-space between the model
and observations imply that the stream might have been perturbed by LMC. The
two most distant stars among 11 detected members trace the stream's length to
$60^\circ$ of sky, supporting and extending the previous length of $45^\circ$.
Given that NGC 5466 is so distant and potentially has a longer tail than
previously thought, we expect that NGC 5466 tidal stream could be a useful tool
in constraining the Milky Way gravitational field.
