Universe  ID: 10819

Fermi's Latest Gamma-ray Census Highlights Cosmic Mysteries

Every three hours, NASA's Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Every year, the satellite's scientists reanalyze all of the data it has collected, exploiting updated analysis methods to tease out new sources. These relatively steady sources are in addition to the numerous transient events Fermi detects, such as gamma-ray bursts in the distant universe and flares from the sun.

Earlier this year, the Fermi team released its second catalog of sources detected by the satellite's Large Area Telescope (LAT), producing an inventory of 1,873 objects shining with the highest-energy form of light. More than half of these sources are active galaxies whose supermassive black hole centers are causing the gamma-ray emissions.



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Walt Feimer (HTSI): Animator
Scott Wiessinger (USRA): Animator
Scott Wiessinger (USRA): Video Editor
Elizabeth Hays (NASA/GSFC): Narrator
Scott Wiessinger (USRA): Producer
Francis Reddy (University of Maryland College Park): Lead Science Writer
Francis Reddy (University of Maryland College Park): Graphics
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Fermi Gamma-ray Space Telescope

Data Used:
Event List
Fermi Gamma-ray Large Area Space Telescope (GLAST) Large Area Telescope (LAT)
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Goddard TV Tape:
G2011-101 -- Fermi Blazar

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GCMD >> Earth Science >> Spectral/Engineering >> Gamma Ray
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GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version