Black Hole And A Star Orbiting At A Dizzying

Posted by Unknown Rabu, 20 Maret 2013 0 komentar
Black Hole And A Star Orbiting At A Dizzying: XMM-Newton space telescope of European Space Agency has helped identify a star and a black hole orbiting each other at a dizzying once every 2.4 hours.
Black Hole And A Star Orbiting At A Dizzying
The black hole  known as MAXI J1659-152 is at least three times more massive than the Sun while his companion a red dwarf star has a mass of only 20 percent of the Sun.

 The couple is separated by a million miles pinpointed the scientists.

This duo was discovered on September 25, 2010 by the Swift space telescope at NASA but, initially it was thought that it was a gamma ray burst. Subsequently, the Japanese telescope MAXI in the International Space Station found a bright X-ray source in the same place.

Finally, observations from ground and space telescopes, including the XMM-Newton X-ray revealed that came from a black hole feeding the material ejected by its little companion.

In a continuous observation of 14.5 hours with XMM-Newton detected several falls regularly spaced emission caused by the irregular edge of the accretion disk of the black hole which briefly hidden X-rays as the system rotates. From these data, the scientists established an orbital period of only 2.4 hours setting a new record for the binary black hole systems. The previous record holder Swift J1753.5-0127, has a period of 3.2 hours.

The black hole and the star orbit their common center of mass. Because the star is the lighter object is located farther away from this point and have to travel around its orbit larger at breakneck speed of two million kilometers per hour. It is the fastest ever seen star in a binary system of X-rays Furthermore, the black hole orbiting just 150,000 kilometers per hour.

The companion star orbits the common center of mass at a breakneck pace almost 20 times faster than the Earth revolves around the sun he noted researcher ESA Kuulkers Erik who added that he would be on the carousel of the galactic fair.

His team also saw that are well above the galactic plane outside the main disk of our spiral galaxy a rare feature shared by only two other binary systems.
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Judul: Black Hole And A Star Orbiting At A Dizzying
Ditulis oleh Unknown
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