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Article: New astronomy study results from University of Oxford described.
- Article from:
- Mergers & Acquisitions Week
- Article date:
- November 11, 2009
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"We examine a binary merger model for the formation of the mysterious triple-ring nebula surrounding Supernova 1987A, which still has not been convincingly explained in detailed hydrodynamical calculations. During the merger of 15 and 5 M-circle dot binary systems, mass is ejected primarily at mid-latitudes for a sufficiently evolved primary, as demonstrated by Morris & Podsiadlowski," scientists writing in the journal Monthly Notices of the Royal Astronomical Society report.
"This material is swept up by the fast wind of the central star during its post-merger blue supergiant phase, leading to a density contrast of similar to 150 in the outer rings at the time ...