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GLAST / Fermi and gamma-ray bursters |
 Jan 24 2009, 08:22 PM
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 Senior Member  Group: Members Posts: 1688 Joined: 5-March 05 From: Boulder, CO Member No.: 184  |
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  After posting this I see the mainly prelaunch GLAST thread from a few months back.
-------------------- Steve [ my home page and planetary maps page ]
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Feb 21 2009, 02:15 AM
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 Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Just had a thought -- maybe GRBs are generated when our Universe's 'brane touches another 'brane? I mean, membrane theory proposes the possibility that the Big Bang was generated when our 'brane had a full-on collision with another. Maybe GRBs are the result of small, glancing contacts?
Just a thought... -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Feb 24 2009, 07:27 PM
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 Member Group: Members Posts: 646 Joined: 23-December 05 From: Forest of Dean Member No.: 617 |
QUOTE (dvandorn @ Feb 21 2009, 02:15 AM)  Just had a thought -- oDoug, this might be of interest. (It just popped up in a simple search; I'm not remotely qualified to assess it's credibility.) -------------------- --
Viva software libre! |
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scalbers GLAST / Fermi and gamma-ray bursters Jan 24 2009, 08:22 PM
PhilCo126 Our newspapers have a story about FERMI observing ... Feb 20 2009, 07:48 AM
ups QUOTE (PhilCo126 @ Feb 20 2009, 07:48 AM)... Feb 20 2009, 09:44 PM scalbers I see they noticed a 16.5 second delay in the burs... Feb 21 2009, 04:09 PM |
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Lo-Fi Version | Time is now: 16th December 2024 - 08:51 PM |
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