As part of our radial velocity survey of low Galactic latitude structures that surround the Galactic disc , we report the detection of the so called Monoceros Ring in the foreground of the Carina dwarf galaxy at Galactic coordinates ( l,b ) = ( 260 ^ { \circ } , -22 ^ { \circ } ) based on VLT/FLAMES observations of the dwarf galaxy .
At this location , 20 degrees in longitude greater than previous detections , the Ring has a mean radial velocity of 145 \pm 5 { km s ^ { -1 } } and a velocity dispersion of only 17 \pm 5 { km s ^ { -1 } } .
Based on Keck/DEIMOS observations , we also determine that the Ring has a mean radial velocity of -75 \pm 4 { km s ^ { -1 } } in the foreground of the Andromeda galaxy at ( l,b ) \sim ( 122 ^ { \circ } , -22 ^ { \circ } ) , along with a velocity dispersion of 26 \pm 3 { km s ^ { -1 } } .
These two kinematic detections are both highly compatible with known characteristics of the structure and , along with previous detections provide radial velocity values of the Ring over the 120 ^ { \circ } < l < 260 ^ { \circ } range .
This should add strong constraints on numerical models of the accretion of the dwarf galaxy that is believed to be the progenitor of the Ring .