The coldest place in the universe

In the Northern Hemisphere, at the end of October, step by step approaching winter, the trees lose their leaves, the temperatures begin to fall. Closer to the north, the air temperature drops further. However, the coldest place in the universe, known as the Boomerang Nebula in the constellation Centaurus.

Astronomers To learn more, take (the Atacama Large Millimeter / submilimet astronomical interferometer Array radio telescopes located in Chile), using the opportunity to look at this huge cloud of gas and dust have access. Boomerang Nebula previously in the world through telescopes and the Hubble Space Telescope was displayed and visible light bow tie (or two crossed boomerang) resembles. Do not take high-resolution features, using the actual shape of the Boomerang Nebula appeared.

NASA working as a scientist , researcher, and at the same time Astrophysical Journal publishing the editor of that Raghvendr the field , " Nebula from Earth through a telescope boomerang-shaped or two lobes also can call seems that way , but the thought of the much larger and rapidly the universe is expanding. "

The nebula around , thanks to ALMA , thick circumstellar dust particles found in the belt , which was preventing some light waves pass through and take the shape of the nebula makes tie .

So why is it very cold nebula ? Astronomers say that it cools down more and more . Located in the center of the nebula , resembling a sun star, nears the end of life , overflowing with the gas nebula is expanding rapidly . This expansion creates a cool effect , it melting prevent your refrigerator Do not freeze the expansion of the gas as you might think. However, the gas in the nebula is moving 500,000 km per hour . In a Kelvin Boomerang Nebula in our solar system known even colder than the coldest places .

A new survey of the outer edge of the nebula , outer gas slows down the expansion shows that much hotter . Sahai , " This is how he died of stars and planetary nebulae become important to understand that , " he says. " Take , using the lives of stars like the sun that we can understand how it ended . " Boomerang Nebula , 5000 light-years away from Earth in the Milky Way galaxy is located within .

Bu Haber için yorum yapabilirsiniz 20.03.2014 00:50:58 204.236.235.245

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