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Posted by on Aug 16, 2012 in Science |

Hubble detected two clusters of stars that collide

Hubble detected two clusters of stars that collide

Scientists, using data from the grandfather almost telescopes, the , have detected two clusters of that would be in the early stages of a process of collision and fusion.

The two clusters are located in the giant 30 Doradus nebula (also known as the Tarantula Nebula), about 170,000 light years from earth. Apart from being a photo with beautiful colors, have their meaning, since blue is the light emitted by stars larger and hotter, bright green is emitted by oxygen and hydrogen red fluorescent.

At first he thought the image was a single cluster of stars that was forming, but found that they were actually two colliding clusters with an age difference of a million years between them, so. No wonder that at first mistakenly thought, as the has been a very active region in terms of star formation over the past 25 million years and there are no data on when to cease to be.

All research began with Elena Sabbi, scientific Baltimore and his team as they tried to make sense of some stars who could not have appeared in its current position, specifically are stars “breaks”, stars that were driven to the outskirts of a Tarantula high velocities were formed by dynamic interactions. These interactions are common in core collapse, where massive stars reach the center of a star cluster and begin to pop out to each other when there are many in the middle.

The doubts began when they noticed that the distribution of lower mass stars in the cluster was not spherical, as usual, but it was the form of two clusters of stars stretched by the gravitational action between the two, hence it was confirmed by measuring the aging of the two separate clusters by Hubble.

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