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

Cycle_of_pulsed_gamma_rays_from_the_Vela_pulsar.gif ‎（226 × 169像素，文件大小：55 KB，MIME类型：image/gif、​循环、​39帧、​1.6秒）

摘要

描述
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.
日期
来源 Goddard Space Flight Center
Credit: NASA/DOE/Fermi LAT Collaboration
作者 Roger Romani (Stanford University) (Lead), Lucas Guillemot (CENBG), Francis Reddy (SPSYS)

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Public domain 本文件完全由NASA创作，在美国属于公有领域。根据NASA的版权方针，NASA的材料除非另有声明否则不受版权保护。（参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。）
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当前2009年7月9日 (四) 09:562009年7月9日 (四) 09:56版本的缩略图226 × 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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