NASA reports that the bursts come from the destruction of a star that is too close to a massive black hole 
Among scientists study is the director of the Institute of Astronomy, UNAM, William Lee (Foto: Especial )
Thursday June 16, 2011 Notimex | El Universal22:00
Less than two months, on 28 March, NASA's Swift satellite pinpointed a burst of gamma rays coming from the destruction of a star that got too close to a massive black hole in the center of a distant galaxy, he to meet an international group of astronomers.
The scientists, among which is the director of the Institute of Astronomy, UNAM, William Lee, released by the journal Science, indicated that the Swift satellite has spent nearly seven years of observing the sky hunting, among other things, flashes of gamma rays.
The scientists, among which is the director of the Institute of Astronomy, UNAM, William Lee, released by the journal Science, indicated that the Swift satellite has spent nearly seven years of observing the sky hunting, among other things, flashes of gamma rays.
These flashes represent the light of higher energy there to try to unravel the mystery of its origin.
Although uncertainties remain, experts believe that most of the rays are generated when high mass stars collapse at the end of his life and form a black hole.
This is followed by the emission of radiation as a narrow jet that lasts only minutes, but due to its high intensity can be detected even occur in very distant galaxies.
These flares can release very soon so much energy as the Sun has issued since it was formed, made five billion years.
Although uncertainties remain, experts believe that most of the rays are generated when high mass stars collapse at the end of his life and form a black hole.
This is followed by the emission of radiation as a narrow jet that lasts only minutes, but due to its high intensity can be detected even occur in very distant galaxies.
These flares can release very soon so much energy as the Sun has issued since it was formed, made five billion years.
Interestingly, the burst that Swift satellite detected (called SW 1644 +57), although it seemed routine lasted longer than usual.
Located in the center of a galaxy in the constellation Draco, at almost four billion light years from Earth, shone unusually SW 1644 +57 in the satellite monitors for days, a record for this type of phenomena.
Located in the center of a galaxy in the constellation Draco, at almost four billion light years from Earth, shone unusually SW 1644 +57 in the satellite monitors for days, a record for this type of phenomena.
After the flare detected, astronomers-institutional U.S., Europe and Mexico decided to track and studied with the Hubble Space Telescope and the Chandra X-ray telescope, both orbited and operated by NASA.
They also sought information on how it looked before exploding the galaxy. Everything indicates that like many others, has at its heart a very massive black hole, in this case a level equivalent to a million suns, medium compared with larger, which can weigh up to one billion stars.
Most times they are calm and remain invisible, but if a star passes by, can be destroyed by the violent pull of the black hole and be swallowed by it, UNAM said in a statement.
All studies conducted by astronomers suggest that this seems to have been the case with SW 1644 +57. Probably a star the size of our sun would have reached a dangerous area near the black hole and it would have disturbed strongly undoing; swallowed much of his material.
They also sought information on how it looked before exploding the galaxy. Everything indicates that like many others, has at its heart a very massive black hole, in this case a level equivalent to a million suns, medium compared with larger, which can weigh up to one billion stars.
Most times they are calm and remain invisible, but if a star passes by, can be destroyed by the violent pull of the black hole and be swallowed by it, UNAM said in a statement.
All studies conducted by astronomers suggest that this seems to have been the case with SW 1644 +57. Probably a star the size of our sun would have reached a dangerous area near the black hole and it would have disturbed strongly undoing; swallowed much of his material.
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