Thursday, October 31, 2013

The Universe's Violent Youth

Summary: Scientists at the Kavli Institute for Particle Astrophysics and Cosmology found new evidence to support the prevalent theory of the universe having a violent stage mare than 10 billion years ago that was responsible for the initial creation of heavy elements. Using the Suzaku satellite they saw an even spread of iron between the galaxies. This means that iron was present in the intergalactic gas even before the Perseus cluster was formed; an observation which they speculate holds true for more than just this cluster. This would put the creation of these elements between 10 to 12 billion years ago, during a time of intense star formation and energetic black holes. Most of this iron was created by Type Ia supernovae that then rocketed out their material into space.


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