NASA Telescopes Join Forces To Observe Unprecedented Explosion

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Source: NASA

NASA's Swift satellite, Hubble Space Telescope and Chandra X-ray Observatory have teamed up to study one of the most puzzling cosmic blasts ever observed. More than a week later, high-energy radiation continues to brighten and fade from its location.
Astronomers say they have never seen such a bright, variable, high-energy, long-lasting burst before. Usually, gamma-ray bursts mark the destruction of a massive star, and flaring emission from these events never lasts more than a few hours.

Although research is ongoing, astronomers feel the unusual blast likely arose when a star wandered too close to its galaxy's central black hole. Intense tidal forces probably tore the star apart, and the infalling gas continues to stream toward the hole. According to this model, the spinning black hole formed an outflowing jet along its rotational axis. A powerful blast of X- and gamma rays is seen when the jet is pointed in our direction.

On March 28, Swift's Burst Alert Telescope discovered the source in the constellation Draco when it erupted with the first in a series of powerful blasts.

"We know of objects in our own galaxy that can produce repeated bursts, but they are thousands to millions of times less powerful than the bursts we are seeing. This is truly extraordinary," said Andrew Fruchter at the Space Telescope Science Institute in Baltimore.
Swift determined a position for the explosion, which now is cataloged as gamma-ray burst (GRB) 110328A, and informed astronomers worldwide.

Read more: http://www.nasa.gov/home/hqnews/2011/apr/HQ_11-106_SWIFT.html

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Wow!