Monday, December 27, 2010

Wandering around the Milky Way black hole strange and beautiful.

<P> Business Channel [http://biz.] Code: "Daily Telegraph" reported that 10 U.S. astronomers said the newly discovered hundreds of "rogue" black hole is free to wander around the galaxy, they eat with their meet opportunistic .The stars and planets. .</ P> <P> black hole is large density of the planet can absorb everything, including light. .Has a huge gravitational black hole, even light to be attracted and can not escape. .Hiding a huge black hole gravitational field, this large gravitational anything, even light, are able to escape the black hole palm. .Black hole within its borders to prevent any outsiders to see anything, it is this object called the "black hole" reasons. .</ P> <P> two different sizes or different rotation speed of the black hole will encounter what is happening? .Recently scientists used a supercomputer to simulate the "rogue" black holes the potential threat. .</ P> <P> first encounter of the two black holes will be combined, and 2500 miles per second speed in space flight. .If any planets or spacecraft, this enhanced version of the black hole with their territories, it certainly was the swallow, no chance of returning alive. .</ P> <P> </ P> <P> Photo caption: U.S. astronomers say, hundreds of rogue black holes to wander freely around the galaxy, its huge enough to swallow any of its attractive stars quitting. .</ P> <P> </ P> <P> American astronomer, supercomputer simulation "rogue" black holes around the galaxy on the threat </ P> <P> Nashville Vanderbilt University astronomer Kelly .Dr Holley-Bockelmann, predict the risk is very difficult to monitor such a rogue black hole is simply in vain. .Only when such a black hole to absorb a large amount of gas, people only likely to be detected. .Because the researchers can observe the gravitational effects near the bend by the super-light, and thus know the whereabouts of the black hole. .This process will produce a gravitational lens effect, then shift to the background and become a bright star shining. .Business Channel [http://biz.] </ P> <P> Holley-Bockelmann among globular cluster located in the "intermediate mass" black holes do the research. .By the ancient globular clusters since 100000-1000000 stars to form the body. .This type of black hole mass may be the equivalent of thousands of sun, its existence is controversial. .Holley-Bockelmann working group to study the intermediate-mass black holes and the smaller "stellar-type" black hole the consequences of a collision, the two black hole collision will cause the joint ejected at high speed globular clusters. .</ P> <P> astronomers now have sufficient evidence to prove the existence of stellar black hole type, the quality is less than a hundred stars, is the star exploded in the formation of the end of its life, which are found in globular clusters. .If a black hole rotating at different speeds, then a collision would produce similar results. .</ P> <P> Holley-Bockelmann said: "The type of stars within the globular cluster black hole mass varies, the rotation vary widely, there is no law, initial mass black hole we have different scenarios. From the most conservative point of view .scenario, we found that even the beginning of globular clusters have only one intermediate mass black hole, collision, after the merger there are thirty percent of the globular star retains intermediate mass black holes. If the most ambitious scenario, then less than two per cent .globular clusters in the collision will be retained after the merger of intermediate mass black hole. "</ P> <P> these black holes may bring us a threat, the scientists said:" They are almost impossible to pose a threat to us. Their danger zone .- Schwarzschild radius (Schwarzschild Radius) is very small, only a few hundred kilometers. to know that we are surrounded by something even more dangerous than this does. "</ P> <P> explore new knowledge: </ P> <P .> What is the Schwarzschild radius? .</ P> <P> Schwarzschild radius (Schwarzschild radius) is the quality of any specific gravity of the critical radius, in astronomy, when the radius of a celestial body below the Schwarzschild radius, they will become a black hole. .Schwarzschild radius of the black hole surface to the range called the "event horizon", all the material into the event horizon, including light, are unable to escape the black hole's gravity. .</ P> <P> Schwarzschild radius of the formula is the formula for escape velocity from the object is derived. .It will set the object's escape velocity of light, and celestial bodies with the gravitational constant quality, can come to the Schwarzschild radius. .</ P> <P> Zebian: Lu Yue Yue </ P> <P> </ P> </ p>.

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