The animation shows a subset of more than 1,500 light curves collected by the Large Area Telescope over nearly 15 years in space.
The animation reveals the central plane of the Milky Way galaxy and the Sun's annual trajectoryand a high-energy particle called a neutrino from a blazar for the first time, thanks to Fermi LAT and IceCube," said co-author Michela Negro, an astrophysicist at the University of Maryland, Baltimore County, and NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
Each frame in the animation shows three days of observations. According to the release, "each object's magenta circle grows as it brightens and shrinks as it dims". The reddish-orange band running across the middle of the sky is the central plane of our Milky Way galaxy, known to be a consistent gamma-ray producer. And the yellow circle reveals the Sun's annual trajectory across the sky.
France Dernières Nouvelles, France Actualités
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