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Latest Gamma-ray burst progenitors Stories

2bea3292fac26fb161e548517985cd001
2005-12-15 15:50:00

Scientists using NASA's Swift satellite have found evidence of a black hole swallowing a neutron star. The discovery is reported in the December 15 issue of Nature.

2005-10-05 14:16:16

An international team of scientists using three NASA satellites and a host of ground-based telescopes believes it has solved the greatest remaining mystery of the mysterious gamma-ray bursts (GRBs), the most powerful explosions in the universe. The shorter of two versions of these bursts appear to be caused by the collision of closely orbiting neutron stars or one of those compact stars and a black hole, said the University of Chicago's Don Lamb.

3fb381b36ecf4dc5403cbe68bb52dc71
2005-06-01 07:01:08

Astronomers have uncovered tantalizing insights into the origin of short gamma-ray bursts – mysterious, split-second high-energy flashes that have eluded detailed study until now. Unlike their long-duration cousins, which are known to arise when massive young stars die, short bursts are thought to occur when old, dense neutron stars collide.

0cbe3f231d2ab68971867513b254f1901
2005-05-26 17:25:00

Observations by two of the world's largest telescopes provide strong evidence that a peculiar type of exploding star may be the origin of elusive gamma-ray bursts that have puzzled scientists for more than 30 years. The new observations, though not a smoking gun, provide a major piece of evidence that this new theory is correct.


Latest Gamma-ray burst progenitors Reference Libraries

6_f3739d4b04b11a1c267bfcc286610ef92
2004-10-19 04:45:41

Hypernova -- A hypernova is a theoretical type of supernova produced when exceptionally large stars collapse at the end of their lifespan. In a hypernova, the core of the star collapses directly into a black hole and two extremely energetic jets of plasma are emitted from its rotational poles at nearly light speed. These jets emit intense gamma rays, and are a candidate explanation for gamma ray bursts. Theorists have come up with several plausible explanations for hypernovae. It may...

6_f5324ad7d5514381282c99963af8be7c2
2004-10-19 04:45:41

Gamma-Ray Burst -- In astronomy, Gamma-ray bursters (GRBs) are flashes of gamma rays that last from seconds to hours, the longer ones being followed by several days of X-ray afterglow. They occur at random positions in the sky several times each day. They are now believed to result from tremendous explosions in far away galaxies, during the creation of a black hole from a dying star or two colliding neutron stars. The black hole, surrounded by a rotating disk of matter falling into it,...

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Word of the Day
overword
  • To say in too many words; to express verbosely.
  • To express in too many words: sometimes used reflexively.
  • The leading idea or a repeated phrase, as of a song or ballad; the refrain; burden.
The word 'overword' comes from over- +‎ word.