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Advanced filters: Author: Bon-Chul Koo Clear advanced filters

  • Keen observations of the Cassiopeia A supernova remnant have identified a circumstellar clump that lies outside the supernova shock front. This unprocessed material from the supernova progenitor contains iron in the gas phase, and is consistent with an origin within a blue supergiant star.

    • Bon-Chul Koo
    • Hyun-Jeong Kim
    • Daniel T. Jaffe
    Research
    Nature Astronomy
    Volume: 4, P: 584-589