Gaia DR2:

The kinematics of globular clusters and dwarf galaxies around the Milky Way.

The paper

Get the paper:

pdf A&A website

Download tables

The tables as found in the paper can be downloaded here in various digital forms (VOTable, ascii, html, csv and tsv).

Derived astrometric parameters for the globular cluster (Table C.1)
Download in: vot asc html csv tsv

Derived astrometric parameters for dwarf spheroidal galaxies (Table C.2)
Download in: vot asc html csv tsv

Positions and velocities from the Sun for the globular clusters (Table C.3)
Download in: vot asc html csv tsv

Positions and velocities from the Sun for the dwarf spheroidals (Table C.4)
Download in: vot asc html csv tsv

Orbital properties for the globular clusters (Table D.1)
Download in: vot asc html csv tsv

Orbital properties for the dwarf spheroidals (Table D.2)
Download in: vot asc html csv tsv

Lists of (member) stars used to derive the astrometric parameters for each object:

Images

The Milky Way as reconstructed from Gaia DR2 data, highlighting the location of nearly 90 satellites of the Milky Way: globular clusters (in blue) and dwarf galaxies (in red). The arcs shown along with each satellite show the path these objects take in the next 10 million years for the globular clusters (in blue) and in the next 100 million years for the dwarf galaxies (in red), as inferred from their Gaia DR2 measurements of their proper motions. Without annotations: Without orbits/arcs: Velocity fields derived from proper motions for the Magellanic Clouds:

Movies

The first movie shows the orbits of globular clusters (in blue) and dwarf galaxies around the Milky Way.

The second movie shows that two dwarfs (Ursa Minor and Draco) share very similar orbits and that many of the dwarfs, but not all, lie in a common fairly planar configuration.

These movies are created with ipyvolume

Interactive visualization

This visualization allows you to interactively explore the orbits of the globular clusters and dwarf spheroidals around the Milky Way. Drag and scoll to rotate and zoom in and out. Use the checkbox below to visualize the trace of the full orbit.