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Galactic centre, gamma ray image

Galactic centre, gamma ray image

R806/0101

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Credit

JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY

Caption

Galactic centre, gamma ray image. It is thought that the annihilation of dark matter particles and antiparticles forms gamma rays that have a certain energy (511 keV). The gamma ray intensity is greatest (yellow) at the centre of the Milky Way, as shown by the sky map co-ordinates on the axes. The plane of the galaxy is horizontal. Dark matter is the non-visible matter thought to make up most of the mass of the universe. The Milky Way's centre was observed by Integral, the ESA's gamma ray space telescope, and modelled by researchers Dr Celine Boehm and Dr Dan Hooper. The model uses low-mass (relative to previous theories) particles of dark matter. Results published in 2003.

Release details

Model release not required. Property release not required.

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