File:M31 (panorama) - Noirlab1910a.tiff

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English: Two Ancient Migration Events in the Andromeda Galaxy


The globular clusters studied (lower right insets), indicated by colored circles, are located in the outer halo of the Andromeda Galaxy, beyond the bright disk of the galaxy (upper left inset). The star clusters separate into two groups — those associated and unassociated with stellar streams — that have very different orbits, a result that points to two discrete migration events in the history of the galaxy. The color of each circle indicates the line-of-sight velocity of the corresponding star cluster.

Credit:

Australian National University/NOIRLab/NSF/AURA
Date Oct. 2, 2019, 9 a.m.
Source https://noirlab.edu/public/images/noirlab1910a/
Author Credit: Australian National University/NOIRLab/NSF/AURA
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current17:34, 11 November 2021Thumbnail for version as of 17:34, 11 November 20212,560 × 2,161 (2.87 MB)Fabian RRRR (talk | contribs)== {{int:filedesc}} == {{Information |description={{en|1='''Two Ancient Migration Events in the Andromeda Galaxy The globular clusters studied (lower right insets), indicated by colored circles, are located in the outer halo of the Andromeda Galaxy, beyond the bright disk of the galaxy (upper left inset). The star clusters separate into two groups — those associated and unassociated with stellar streams — that have very different orbits, a result that points to two discrete migration events...

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