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Record-Breaking Gamma-Ray Binary found in Large Magellanic Cloud

Wednesday, October 5, 2016 6:05
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A gamma-ray binary discovered in the Large Magellanic Cloud, a dwarf galaxy approximately 163,000 light-years away, is the first object of its kind ever found in a galaxy other than the Milky Way and is the most luminous one ever seen.

Gamma-ray binaries contain either a neutron star or a black hole and radiate most of their energy in the form of gamma rays.

Only a handful of such systems have been previously discovered, all within our Milky Way Galaxy.

Remarkably, the newly-discovered object, LMC P3, is the most luminous such system known in gamma rays, X-rays, radio waves and visible light, and it’s only the second one discovered with NASA’s Fermi Gamma-ray Space Telescope.

LMC P3 is located in a supernova remnant called DEM L241 in the Large Magellanic Cloud. A paper describing the discovery was published online this week in the Astrophysical Journal


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