Abstract
We present a proper-motion study on models of the dwarf spheroidal
galaxy Sculptor, based on the predicted proper-motion accuracy of Gaia
measurements. Gaia will measure proper motions of several hundreds of
stars for a Sculptor-like system. Even with an uncertainty on the proper
motion of order 1.5 times the size of an individual proper-motion value
of ˜10 mas/century, we find that it is possible to recover
Sculptor's systemic proper motion at its distance of 79 kpc.
| Original language | English |
|---|---|
| Title of host publication | The Milky Way Unravelled by Gaia |
| Subtitle of host publication | GREAT Science from the Gaia Data Releases |
| Publisher | EAS Publications Series |
| Pages | 241-245 |
| Volume | 67-68 |
| DOIs | |
| Publication status | Published - Jul-2014 |