Wednesday, 25 May 2011

New method showed the existence of dark matter

The first results of a large astronomical research, during which he viewed more than 200,000 galaxies using the latest technology, confirmed the existence of mysterious dark energy, scientists estimate.
Dark energy makes up about 73 percent of the universe and its existence could explain why the universe is expanding rapidly.

During the research, an international team of researchers used two separate methods of observation to allow independent verification of previously obtained results on dark energy, the BBC reported.

Both studies were published in the newspaper Montly Nutis "of the Royal Astronomical Society.
Astronomers are in one of them measured the pattern of distribution of galaxies in the universe, called "baryonic ajustine oscillations, and the second the rate at which the sets of galaxies formed over time.
Both techniques confirmed the existence of dark energy and accelerated expansion of the universe.
The concept of dark energy was first mentioned in late 1990's, during the investigation of light of distant supernovae, that is. stellar explosions.

To explain how and why the rapid expansion of the universe, astronomers have been forced to change or Einstein's theory of gravity or to accept that the universe is filled with a new form of energy.

"The effect of dark energy is like when you throw the ball in the air, and it is faster and faster climbs into the sky, " said study co-author Dr Chris Blake, the Australian Svinburn University of Melbourne.

"The results indicate that dark energy cosmological constant, as Einstein said. That gravity is the basis of that, then we would not have witnessed the constant influence of dark energy over time, " he said.

The survey, called ViglZ, conducted since 2006. until this year. The scientists used data collected by NASA's Space Telescope Galeks and Anglo-Australian Telescope in Sajding Springs, 451 miles northwest of Sydney.

Mapped the distribution of galaxies in the largest part of the universe, the return of eight billion years back in time, which is half the age of the universe.

"This is significant progress. These guys are serious, scientists, and we have long awaited the results, " he told BBC News Bob Nicholl, a British cosmologist and professor of astrophysics at the University of Postmautu.
"This is yet another confirmation of the existence of dark energy that gives us information that we can not round up our theory and that shows us the way forward, " he added.

Dark energy makes up about 73 percent, and dark matter, which does not emit or reflect light, about 23 percent of the universe. Ordinary matter - gas, stars, planets and galaxies - are, however, only four percent of the universe.

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