File:Cycle of pulsed gamma rays from the Vela pulsar.gif

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Cycle_of_pulsed_gamma_rays_from_the_Vela_pulsar.gif ‎(226 × 169 pixels, file size: 55 KB, MIME type: image/gif, looped, 39 frames, 1.6 s)

Summary

Description
English: This image shows pulsed gamma rays from the Vela pulsar as constructed from photons detected by Fermi's Large Area Telescope. The Vela pulsar, which spins 11 times a second, is the brightest persistent source of gamma rays in the sky. The bluer colour in the latter part of the pulse indicates the presence of gamma rays with energies exceeding a billion electron volts (1 GeV). For comparison, visible light has energies between two and three electron volts. Red indicates gamma rays with energies less than 300 million electron volts (MeV); green, gamma rays between 300 MeV and 1 GeV; and blue shows gamma rays greater than 1 GeV. The image frame is 30 degrees across. The background, which shows diffuse gamma-ray emission from the Milky Way, is about 15 times brighter here than it actually is.
Date
Source Goddard Space Flight Center
Credit: NASA/DOE/Fermi LAT Collaboration
Author Roger Romani (Stanford University) (Lead), Lucas Guillemot (CENBG), Francis Reddy (SPSYS)

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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inception

30 October 2008

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current09:56, 9 July 2009Thumbnail for version as of 09:56, 9 July 2009226 × 169 (55 KB)Originalwana{{Information |Description={{en|1=This imgae shows pulsed gamma rays from the Vela pulsar as constructed from photons detected by Fermi's Large Area Telescope. The Vela pulsar, which spins 11 times a second, is the brightest persistent source of gamma ray
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