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We present new results from BRAVA, a large scale radial velocity survey ofthe Galactic bulge, using M giant stars selected from the Two Micron All SkySurvey catalogue as targets for the Cerro Tololo Inter-American Observatory 4mHydra multi-object spectrograph. The purpose of this survey is to construct anew generation of self-consistent bar models that conform to theseobservations. We report the dynamics for fields at the edge of the Galacticbulge at latitudes b=-8 deg. and compare to the dynamics at b=-4 deg. We findthat the rotation curve V(r) is the same at b=-8 deg. as at b=-4 deg. That is,the Galactic boxy bulge rotates cylindrically, as do boxy bulges of othergalaxies. The summed line of sight velocity distribution at b=-8 deg. isGaussian, and the binned longitude-velocity plot shows no evidence for either a(disk) population with cold dynamics or for a (classical bulge) population withhot dynamics. The observed kinematics are well modeled by an edge-on N-bodybar, in agreement with published structural evidence. Our kinematicobservations indicate that the Galactic bulge is a prototypical product ofsecular evolution in galaxy disks, in contrast with stellar population resultsthat are most easily understood if major mergers were the dominant formationprocess.

Kinematics at the Edge of the Galactic Bulge: Evidence for Cylindrical Rotation