We construct a large set of dynamical models of the galactic bulge , bar and inner disk using the Made-to-Measure method .
Our models are constrained to match the red clump giant density from a combination of the VVV , UKIDSS and 2MASS infrared surveys together with stellar kinematics in the bulge from the BRAVA and OGLE surveys , and in the entire bar region from the ARGOS survey .
We are able to recover the bar pattern speed and the stellar and dark matter mass distributions in the bar region , thus recovering the entire galactic effective potential .
We find a bar pattern speed of 39.0 \pm 3.5 { km s ^ { -1 } kpc ^ { -1 } } , placing the bar corotation radius at 6.1 \pm 0.5 kpc and making the Milky Way bar a typical fast rotator .
We evaluate the stellar mass of the long bar and bulge structure to be M _ { bar / bulge } = 1.88 \pm 0.12 \times 10 ^ { 10 } M _ { \odot } , larger than the mass of disk in the bar region , M _ { inner disk } = 1.29 \pm 0.12 \times 10 ^ { 10 } M _ { \odot } .
The total dynamical mass in the bulge volume is 1.85 \pm 0.05 \times 10 ^ { 10 } M _ { \odot } .
Thanks to more extended kinematic data sets and recent measurement of the bulge IMF our models have a low dark matter fraction in the bulge of 17 \% \pm 2 \% .
We find a dark matter density profile which flattens to a shallow cusp or core in the bulge region .
Finally , we find dynamical evidence for an extra central mass of \sim 0.2 \times 10 ^ { 10 } M _ { \odot } , probably in a nuclear disk or disky pseudobulge .