This is Cosmic!

VERITAS Discovers Very High Energy Gamma Rays from the Starburst Galaxy M82

Gamma-ray source identified for the first time, leading to better understanding of the early universe

Image of M82 released by the Hubble Heritage project. Credit and Larger Version

November 2, 2009

The VERITAS (Very Energetic Radiation Imaging Telescope Array System) collaboration, an international team of astronomers from the United States, Canada, United Kingdom and Ireland, has discovered very high energy (VHE) gamma rays emitted by the starburst galaxy M82 (the Cigar Galaxy). The observed gamma rays have energies more than a trillion times higher than the energy of visible light, and are the highest energy photons ever detected from a galaxy undergoing large amounts of star formation. The discovery was made from data taken over a two-year long observing campaign.

This is the first example of a very-high-energy gamma-ray source associated with a starburst galaxy, and its discovery provides fundamental insight into the origin of cosmic rays," said Rene Ong, a professor of physics at the University of California, Los Angeles, and the spokesperson for the VERITAS collaboration.