Tech UPTechnologyThe most intense cosmic explosion ever

The most intense cosmic explosion ever

explosionThree NASA space observatories,Hubble, Swift y Chandra, have come together to studyone of the most intense cosmic explosions in the history of astronomy. One week after the outbreak, high-energy radiation continues to appear and disappear in the constellation Draco, where it was discovered by the Swift telescope on March 28. The explosion, whose source has been located in the center of a galaxy 3.8 billion light years away, has been classified asgamma ray burst (GRB) 110328A.

Normally, gamma-ray emissions indicate the destruction of a massive star, but in that case the flashes usually last only a few hours. So what happened this time? Although the investigation is ongoing, astronomers suspect that this unusual explosionit probably arose when a star wandered too close to its galaxy’s central black hole. The intense tidal forces broke the star, and the gas continued to rush into the hole. According to this model, the rotating black hole formed a jet of emanation along its axis of rotation. A powerful burst of X and gamma rays is seen if this jet is pointed in our direction.

“We know of objects in our galaxy that can produce repeated bursts, but they are billions of times less powerful than the explosions we are seeing now. This is really extraordinary,” explained Andrew Fruchter, of the Space Telescope Science Institute in Baltimore. “The fact that the explosion occurred in the center of a galaxy tells us that it is most likely associated with a massive black hole. This resolves a key question about the mysterious event,” added Neil Gehrels, Swift’s lead scientist in the Goddard Space Flight Center in Greenbelt.

Most galaxies, including ours, contain the center of a black hole millions of times the mass of the Sun., although those of the largest galaxies can be a thousand times larger.The destroyed star likely succumbed to a less massive black hole than the Milky Way, which has a mass four million times that of our Sun.


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