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GLAST / Fermi and gamma-ray bursters
scalbers
post Jan 24 2009, 08:22 PM
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Just wondering if there's any discussion about new gamma-ray observations and what they may say about high-energy physics. I've heard bits and pieces about how gamma-ray bursters can be used to probe the nature of quantum gravity in terms of a vacuum refractive index. This has to do with delay times in gamma-ray burst photons according to wavelength.

Secondly, I've heard rumors about some type of gamma-ray burst measurements that could contradict the dark-energy hypothesis (perhaps a distance-luminosity relation measurement).

Perhaps the new Fermi space observatory will help with some fresh observations.

Steve

P.S. And here's another unmanned yet non-planetary thread smile.gif After posting this I see the mainly prelaunch GLAST thread from a few months back.


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Guest_PhilCo126_*
post Feb 20 2009, 07:48 AM
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Our newspapers have a story about FERMI observing the "biggest explosion" ever in the Universe at 12 Billion light years away with the force of 9000 Black Holes...
Observation was made in September 2008
http://www.nasa.gov/mission_pages/GLAST/main/index.html

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post Feb 20 2009, 09:44 PM
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QUOTE (PhilCo126 @ Feb 20 2009, 07:48 AM) *
Our newspapers have a story about FERMI observing the "biggest explosion" ever in the Universe at 12 Billion light years away with the force of 9000 Black Holes...
Observation was made in September 2008
http://www.nasa.gov/mission_pages/GLAST/main/index.html



They caught a good picture of the afterglow -- this might deserve its own thread.

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