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DAVID THOMPSON GODDARD SPACE FLIGHT CENTER |
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"Two Years of Discovery with the Fermi Gamma-ray Space Telescope"
Gamma rays, the most
energetic photons, help explore some of the most extreme phenomena in
the Universe. In its more than two years of operation, the Fermi
Gamma-ray Space Telescope has surveyed the entire sky approximately 8
times per day, producing a wide range of discoveries in two general
areas:
1.
The persistent gamma-ray sky, characterized by source catalogs, offers
the opportunity to find and study sources such as pulsars, blazars, and
binary systems.
2.
The transient gamma-ray sky captures information about sources such as
gamma-ray bursts and a nova, lasting a fraction of a second to nearly a
month but then fading away.