The cumulative mass profile of the Milky Way as determined by globular cluster kinematics from Gaia DR2

10 Apr 2019 Eadie Gwendolyn Jurić Mario

We present new mass estimates and cumulative mass profiles (CMPs) with Bayesian credible regions for the Milky Way (MW) Galaxy, given the kinematic data of globular clusters as provided by (1) the $\textit{Gaia}$ DR2 collaboration and the HSTPROMO team, and (2) the new catalog in Vasiliev (2019). We use globular clusters beyond 15kpc to estimate the CMP of the MW, assuming a total gravitational potential model $\Phi(r) = \Phi_{\circ}r^{-\gamma}$, which approximates an NFW-type potential at large distances when $\gamma=0.5$... (read more)

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  • ASTROPHYSICS OF GALAXIES
  • APPLICATIONS