Gamma Rays Origin: NASA, UMich, DOE Labs Confirm Death of Massive Star

In summary, recent observations using NASA's Chandra X-ray Observatory have confirmed that gamma-ray bursts are connected to the death of a massive star. This is an important step in understanding these violent events. Additionally, new details and measurements of the brightest optical celestial object ever recorded have been published in the science journal Nature. These observations have shed light on the intensity and proximity of these bursts, with one recent event emitting energy at a rate more than a million times the combined output of all the stars in the Milky Way. This provides a solid foundation for further research and understanding of gamma-ray bursts.
  • #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.
 
Astronomy news on Phys.org
  • #2
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

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

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

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

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

Labguy
 
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  • #3
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
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
 

What are gamma rays?

Gamma rays are a type of electromagnetic radiation with the shortest wavelengths and highest energy in the electromagnetic spectrum. They are produced by the decay of radioactive atoms and by high-energy processes such as supernova explosions and black hole formations.

How are gamma rays detected?

Gamma rays are detected using specialized instruments such as gamma-ray detectors, scintillation detectors, and Cherenkov telescopes. These devices can detect the high-energy photons produced by gamma rays and convert them into electrical signals that can be analyzed.

What is the origin of gamma rays?

Gamma rays can originate from various sources including radioactive decay, cosmic ray interactions, and high-energy astronomical events such as supernovae, pulsars, and black holes. They can also be produced in laboratory settings using particle accelerators.

What is the significance of NASA, UMich, and DOE Labs confirming the death of a massive star through gamma ray detection?

This confirmation provides strong evidence for the theory that gamma rays are produced during the death of massive stars, specifically in the form of supernova explosions. It also helps scientists better understand the processes involved in these high-energy events and their impact on the universe.

How are gamma rays used in scientific research?

Gamma rays are used in various fields of scientific research, including astrophysics, nuclear physics, and medical imaging. They can provide valuable insights into the structure and behavior of matter at the atomic and subatomic level, as well as the properties of celestial bodies and the universe as a whole.

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