Gamma rays origin

  • Thread starter wolram
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  • #1
wolram
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some news about the origin of gamma ray bursts, this may be
old news to some.there have been many theories for the production
of gamma rays, it seems now that the search is narrowing.



http://www1.msfc.nasa.gov/NEWSROOM/news/releases/2003/03-041.html

Using NASA's Chandra X-ray Observatory, scientists have confirmed that a gamma-ray burst was connected to the death of a massive star. This result is an important step in understanding the origin of gamma-ray bursts, the most violent events in the present-day universe. The Marshall Center manages the Chandra program.

http://www.lanl.gov/worldview/news/releases/archive/99-056.shtml

Astronomers from the University of Michigan and the Department of Energy's Los Alamos and Livermore national laboratories described these new details -- including their measurements of the brightest optical celestial object ever recorded -- in the April 1 issue of the science journal Nature.
 

Answers and Replies

  • #2
Labguy
Science Advisor
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I agree that "Hypernovae" and their direct connection to large GRB's can't be overlooked, or discounted when talking about large GRB's. Too much evidence of the unrefutable kind. Also, haven't seen much about them posted on PF, except yours above.

Anyone; Look up these:
http://arxiv.org/PS_cache/astro-ph/pdf/0204/0204007.pdf [Broken]

http://www.astrobio.net/news/article420.html

http://imagine.gsfc.nasa.gov/docs/features/news/20may99.html

http://www.sciencedaily.com/releases/1999/04/990413065523.htm

http://science.msfc.nasa.gov/newhome/headlines/ast21oct98_2.htm [Broken]

http://www.sciscoop.com/story/2003/4/6/175724/7206

http://universe.gsfc.nasa.gov/press/1999/cw99_09.html [Broken]

http://chandra.harvard.edu/press/00_releases/press_110300.html

Labguy
 
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  • #3
wolram
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thanks LABGUY
its nice to talk about things that have a solid foundation rather
than hypothetical theories.

this clip from SCI SCOOP, posted by LABGUY above.

about 100 times more intense than anything we've ever seen before. It's also much closer to us than all other observed bursts so we can study it in considerably more detail," said Akerlof. ROTSE teammember Michael Ashley noted, "During the first minute after the explosion it emitted energy at a rate more than a million times the combined output of all the stars in the Milky Way. If you concentrated all the energy that the sun will put out over its entire 9 billion-year life into a tenth of a second, then you would have some idea of the brightness.
 
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  • #4
Labguy
Science Advisor
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Originally posted by wolram
thanks LABGUY
its nice to talk about things that have a solid foundation rather
than hypothetical theories.
I like this particular part of your post. Amen.

Those numbers given on the sites are HUGE amounts of energy.

Labguy
 

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