Emission from 44Ti associated with a previously unknown Galactic supernova

  title={Emission from 44Ti associated with a previously unknown Galactic supernova},
  author={A. Iyudin and V. Sch{\"o}nfelder and K. Bennett and H. Bloemen and R. Diehl and W. Hermsen and G. Lichti and R. V. D. Meulen and J. Ryan and C. Winkler},
  • A. Iyudin, V. Schönfelder, +7 authors C. Winkler
  • Published 1998
  • Physics
  • Nature
  • Nearly 400 years have passed since a supernova was last observed directly in the Milky Way (by Kepler, in 1604). Numerous Galactic supernovae are expected to have occurred since then, but only one (Cassiopeia A) may have been seen. The historical record of supernovae is therefore incomplete, as demonstrated by the spatial distribution of young supernova remnants. The discovery, of γ-ray emission from the decay of 44Ti nuclei associated with Cassiopeia A, the youngest known remnant, has revealed… CONTINUE READING
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