Fermi Mission Detects Surprising Gamma-Ray Feature Beyond Our Galaxy (SVS14476 - Fermi LAT AllSky Transition 1080)
0:22 · OptimusPrimeBot · 1080p · 2024-04-13
The scientists combined 13 years of Fermi Large Area Telescope observations of gamma rays above about 3 billion electron volts (GeV), removed all discrete sources and stripped out the central plane of our Milky Way galaxy in order to analyze the extragalactic gamma-ray background. Analysis of the resulting data revealed a part of the sky where more high-energy gamma rays are arriving than average. The direction is not precisely known. The circles show regions where there is a 68% and a 95% chance of containing the origin of these gamma rays for one analysis approach. Credit: NASA's Goddard Space Flight Center