Black Hole May Have Ripped Star Apart Causing Unprecedented Explosion

[n2doc]

ScienceDaily (Apr. 7, 2011) — NASA's Swift, Hubble Space Telescope and Chandra X-ray Observatory have teamed up to study one of the most puzzling cosmic blasts yet observed. More than a week later, high-energy radiation continues to brighten and fade from its location.

Astronomers say they have never seen anything this bright, long-lasting and variable before. Usually, gamma-ray bursts mark the destruction of a massive star, but flaring emission from these events never lasts more than a few hours.

Although research is ongoing, astronomers say that the unusual blast likely arose when a star wandered too close to its galaxy's central black hole. Intense tidal forces 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 if this 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 X-ray blasts. The satellite determined a position for the explosion, now cataloged as gamma-ray burst (GRB) 110328A, and informed astronomers worldwide.


http://www.sciencedaily.com/releases/2011/04/110407121345.htm

[Fla Dem]

1. Great find. But in a galaxy 3.8 billion light-years away.

I am not very scientific, but enjoy reading articles like this. At 3.8 billion light-years away, doesn't that mean this event occured eons ago, but the light from the event is just reaching our ability to detect it now.

[n2doc]

2. yep. It happened back then, but the light is just reaching us now. n/t

[ChairmanAgnostic]

3. be very very grateful it is that far away

if this happened in our galaxy, we could all be dead because of this.

[laconicsax]

4. Pfft. Carter did the same thing in the 4th season finale.