We use the rotation curve from Gaia data release (DR) 3 to estimate the mass
of the Milky Way. We consider an Einasto density profile to model the dark
matter component. We extrapolate and obtain a dynamical mass
M=2.75โ0.48+3.11โร1011Mโโ at 112 kpc. This lower-mass
Milky Way is consistent with the significant declining rotation curve, and can
provide new insights into our Galaxy and halo inhabitants.Comment: 4 pages, 2 figures, Accepted for publication in proceedings of IAU
Symposium 379: Dynamical Masses of Local Group Galaxies, Potsdam, March
20-24, 202