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Milky Way total Mass derived by Rotation Curve and Globular Cluster kinematics from Gaia EDR3
Jianling Wang, Francois Hammer, Yanbin Yang
Using action-based distribution function for the dynamical model of the Milky Way we have estimated its total mass and its density profile. Constraints are coming from the globular…
Gaia EDR3 proper motions of Milky Way dwarfs. II: Velocities, Total Energy and Angular Momentum
François Hammer, Jianling Wang, Marcel Pawlowski +5
Here we show that precise Gaia EDR3 proper motions have provided robust estimates of 3D velocities, angular momentum and total energy for 40 Milky Way dwarfs. The results are stati…
Which Milky Way masses are consistent with the slightly declining 5-25 kpc rotation curve?
Yongjun Jiao, Francois Hammer, Jianling Wang +1
Discoveries of extended rotation curves have suggested the presence of dark matter in spiral galaxy haloes. It has led to many studies that estimated the galaxy total mass, mostly…
Gaia EDR3 proper motions of Milky Way dwarfs I: 3D Motions and Orbits
Hefan Li, Francois Hammer, Carine Babusiaux +5
Based on Gaia Early Data Release 3 (EDR3), we estimate the proper motions for 46 dwarf spheroidal galaxies (dSphs) of the Milky Way. The uncertainties in proper motions, determined…