Astronomers provide new insight into universe formation following Big Bang

November 14th, 2007 - 2:52 am ICT by admin  
Textures are defects in the structure of the vacuum left over from the hot early universe.

It is believed that textures collapse and unwind on progressively larger scales, creating intense energy as well as gravitational potential. This unwinding also creates areas of extreme cold or hot, such as the very cold spot in the South Galactic Hemisphere discovered by the IFCA team in 2004.

Prof. Neil Turok of Cambridge’s Department of Applied Mathematics and Theoretical Physics had first shown in the 1990s how textures formed, highlighting that some would survive from the Big Bang and should be visible in today’s universe.

The Big Bang theory proposes that the cosmos began in a very high density, high temperature state, cooling as it expanded.

Physicists opine, that in the early hot universe, different types of elementary particle, (particles such as a quark from which larger particles are created), behaved identically.

As the universe cooled, the vacuum changed and the symmetry between the particles was broken, in a phase transition analogous to the freezing of water. During this kind of phase transition, quarks became distinct from electrons and neutrinos, for example.

Marcos Cruz, Dr. Patricio Vielva and Prof. Enrique Mart

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