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Ka Chun Yu – Origins of the Galactic Center star cluster

Posted 11/25/2015 12:11 AM by Kim Evans | Comments

60 Minutes in Space - October 2015

Ka Chun follows up with a story on the star cluster at the center of our galaxy.

Astronomers know that there is a dense cluster of stars orbiting the black hole, Sagittarius A* at the center of the Milky Way. But they have long puzzled as to how this cluster ended up around it?
There are two leading hypotheses. One states the stars originated from a gas cloud that was in orbit around Sagittarius A* but that
the cloud became unstable and collapsed to form these stars.
Another theory proposes that the stars formed further away and migrated towards the black hole through dynamic processes.

Ka Chun talks about a new paper aimed at determining which model is the correct one.  

Links to Ka Chun's story:
KMOS view of the Galactic Centre I: Young Stars are centrally concentrated


60 Minutes in Space - Scientists from the Space Sciences Department at the Denver Museum of Nature & Science take you "behind the stories" using the best images and animation available to help understand the latest developments.

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