15 Kasım 2012 Perşembe

Star murder: a black hole swallows a star (VIDEO) | RedGage

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Star murder: a black hole swallows a star (VIDEO) | RedGage: "Scientists have recorded the most direct evidence that supermassive black holes can destroy a star. "

Asasinat stelar: o gaur? neagr? înghite o stea (VIDEO)Using observers in space, Galaxy Evolution Explorer, and Pan-STARRS1din Hawaii Telescope, astronomers have identified a helium-rich star and located in a galaxy located 2.7 billion light-years from Earth."When the star is pulled by the gravitational pull of the black hole, some of them fall into the hole remains, the rest is driven out with high speed. Stellar gas glow We observed that fall into the black hole. Moreover, we have seen a spectral signature propellant.'s as we gathered evidence from a crime scene. since the gas is, largely composed of very little hydrogen and helium than we stink realize that destroyed the star had a core rich in helium, "said Suvi Gezari of Johns Hopkins University, Baltimore.Interestingly, it was not the first time that this star is dating a black hole. For this reason, scientists assume that the hydrogen envelope should cover the core of the star has been plucked, long box, all of this black hole.Approaching the end of its life, the star swelled, becomes a red giant, which is on an elliptical orbit.In one of those moments when she approached the black hole's strong gravity made the cover star runs out of gas.To find this event, scientists have monitored hundreds of thousands of galaxies looking for it. Luck has smiled in June 2010, when both telescopes had a flare in appropriate a dormant black holes.Further, scientists have monitored the event, watching the star reaches maximum brightness and then slowly go out over 12 months."The event lasted, the more excited we harder, because I realized that either this is an unusual supernova or a different event, such as the destruction of a star by a black hole," he Insititute said Armin Rest of Baltimore.See video: http://www.youtube.com/watch?feature=player_embedded&v=khKSOPdjlH4


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