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Gamma-ray Burst Photon Delay as Expected by Quantum Gravity
In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity.

Animation showing how the photons may have acted if the structure of space-time was foamy. However, Fermi data has shown that that effect does not exist.    Animation showing how the photons may have acted if the structure of space-time was foamy. However, Fermi data has shown that that effect does not exist.
Duration: 30.0 seconds
Available formats:
  1920x1080 (30 fps) Frames
  1920x1080 (30 fps) QT         43 MB
  960x540 (29.97 fps) MPEG-4   18 MB
  640x360 (29.97 fps) MPEG-4   5 MB
  320x180 (29.97 fps) MPEG-4   2 MB
  512x288 (29.97 fps) MPEG-1   9 MB
  320x180     PNG           132 KB
  160x80       PNG           44 KB
  80x40         PNG           14 KB
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Print resolution still. In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity. Credit: NASA/Sonoma State University/Aurore Simonnet    Print resolution still. In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity. Credit: NASA/Sonoma State University/Aurore Simonnet

Available formats:
  2500 x 1688     TIFF 32 MB
  320 x 216         PNG     724 KB

Animation Number:10489
Completed:2009-10-26
Animator:Cruz DeWilde (Avant Gravity) (Lead)
Scientist:Julie McEnery (NASA/GSFC)
Writer:Francis Reddy (SPSYS)
Series:Fermi
Keywords:
SVS >> Gamma Ray
SVS >> HDTV
DLESE >> Space science
SVS >> Gamma Ray Burst
SVS >> Astrophysics
SVS >> Universe
SVS >> GLAST
SVS >> Space
SVS >> Gamma Ray Observatory
SVS >> Fermi
SVS >> Astronomy
 
 
Please give credit for this item to:
NASA/Sonoma State University/Cruz deWilde/Aurore Simonnet


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