We present an overview of , and first science results from , the Magellanic Edges Survey ( MagES ) , an ongoing spectroscopic survey mapping the kinematics of red clump and red giant branch stars in the highly substructured periphery of the Magellanic Clouds .
In conjunction with Gaia astrometry , MagES yields a sample of \sim 7000 stars with individual 3D velocities that probes larger galactocentric radii than most previous studies .
We outline our target selection , observation strategy , data reduction and analysis procedures , and present results for two fields in the northern outskirts ( > 10 ^ { \circ } on-sky from the centre ) of the Large Magellanic Cloud ( LMC ) .
One field , located in the vicinity of an arm-like overdensity , displays apparent signatures of perturbation away from an equilibrium disk model .
This includes a large radial velocity dispersion in the LMC disk plane , and an asymmetric line-of-sight velocity distribution indicative of motions vertically out of the disk plane for some stars .
The second field reveals 3D kinematics consistent with an equilibrium disk , and yields V _ { \text { circ } } = 87.7 \pm 8.0 km s ^ { -1 } at a radial distance of \sim 10.5kpc from the LMC centre .
This leads to an enclosed mass estimate for the LMC at this radius of ( 1.8 \pm 0.3 ) \times 10 ^ { 10 } M _ { \odot } .