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Study of Andromeda’s stellar disk indicates more violent history than Milky Way

9th January 2015 by KLADAS

The study presents the velocity dispersion of young, intermediate-age, and old stars in the disk of Andromeda, the first such measurement in another galaxy.

A detailed study of the motions of different stellar populations in the disk of the Andromeda Galaxy has found striking differences from our Milky Way, suggesting a more violent history of mergers with smaller galaxies in Andromeda’s recent past.

For more information you can read the whole story at:
Astronomy magazine

Filed Under: Astronomy

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