Supermassive Black Hole

November 3, 2011 by staff 

Supermassive Black Hole, Mysterious ring-shaped cloud of dust that is near some giant black holes might be violent cosmic debris, high-speed collisions between planets and asteroids, a new study.
An international team of astronomers studied a series of a supermassive black hole residing in the central parts of most galaxies. It was found that about half of them are hidden from view by clouds of dust and foreign fat.

When these came from dusty is not completely understood, but astronomers suggest they could be the remnants of planets and asteroids dust that have destroyed each other. This theory proposes that the central regions of galaxies, black holes and contain only the stars but also planets and asteroids. [Photos: Black Holes in the Universe]

Details of the new study will appear in an upcoming issue of the journal Monthly Notices of the Royal Astronomical Society.

The theory inspired researchers called the zodiacal dust in our own solar system known to originate in collisions between objects such as asteroids and comets. These rocky objects to break each other at a speed of more massive than 2 million miles per hour (more than 3 million miles per hour), continues to break into fragments that eventually end up as microscopic dust, the astronomers said.

This volatile environment where frequent collisions are mixed with the intense radiation that make the planets orbiting a supermassive black hole sterile, even before it was destroyed, said study lead author Sergei Nayakshin of the University of Leicester in England.

“It’s a shame for life on these planets, but on the other hand, the dust generated in this way much of blocks harmful radiation from reaching the rest of the galaxy,” said Nayakshin in a statement. “This in turn can make life easier to thrive in other parts of the rest of the galaxy’s central region.”

Understanding how these dust clouds formed near a major part of a black hole play an important role in understanding how a growing supermassive black hole and how they affect their host galaxies, Nayakshin said.

“We suspect that supermassive black hole in our galaxy, the Milky Way, expelled most of the gas that otherwise would become more stars and planets,” he said. “Understanding the origin of dust in the inner regions of galaxies that will take us one step closer to solving the mystery of supermassive black holes.”

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