Wednesday, December 15, 2010

Astronomers successfully measured 110 million years ago, the temperature of the universe

Keywords: astronomers successfully measure temperature of 110 million years ago of the universe

According to New Scientist magazine reports on the United Kingdom, we can not be through time to the early universe "temperature", but astronomers have successfully measured the temperature of the early universe, they use an indirect measurement of devious has 110 million years ago, the temperature of the universe. When the temperature is minus the universe 264 degrees Celsius, which is nowadays a cosmic minus 270 degrees warmer. World Science report

The coldest in the universe is a gas cloud, substances which exist between the stars and galaxies. But the temperature above the absolute zero, which is due to residual radiation of the universe's most early light heating. These residual radiation of light called the cosmic microwave background radiation (CMB), is in the big bang occurred after 38 years by thermal plasma Jet formation in the universe, the big bang occurred at 137 million years ago.

But with the gradual expansion of the universe, contains the cosmic microwave background radiation, electromagnetic waves stretch forming a longer wavelength and lower energy and gradually reduces the temperature of the radiation of light. At present, the cosmic microwave background radiation temperature is minus 270.3 degrees Celsius.

Recently, India school astronomy and Astrophysics Centre Lage Hu Enarson · Leduc, led the research team has measured 110 million years ago of the cosmic microwave background radiation. World Science report

They found 110 million years ago of the early universe 263.85 degrees temperature is below zero, in the other direction are 0.7 degree Celsius. Paris Institute of Astrophysics? Patrick Petit Jones said, researchers study finds that the Big Bang era of temperature should be below zero 263.7 degrees Celsius.

It is understood that astronomers is a very indirect determination of the devious methods this temperature, they are actually on 110 billion light years away a galaxy of carbon monoxide the measurement of temperature is. Carbon monoxide detection is done by intercepting very distant quasars the release light, quasars is a bright galaxies, its central location there's black hole devouring the surrounding material.

The research team used in Chile large telescope (VLT) measurement of the absorption of carbon monoxide in quasars light wavelength, the wavelength is Galaxy gas temperatures and temperature of the heating from the cosmic microwave background radiation. World Science report

NASA Wilkinson microwave anisotropy probe (WMAP) task chief scientist Charles? class nits that through the cosmic microwave background radiation observations confirm that such measurement method for testing the scientists ' expectations is very important. He told New Scientist magazine reporter said, "we are very pleased to see through different methods to validate common consistency. ”

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