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The Triple-Ring Nebula around SN1987A: Fingerprint of a binary merger

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arxiv astro-ph/0703317 v1 pith:FT5WPN3X submitted 2007-03-13 astro-ph

classification astro-ph
keywords mergersupernovabeennebulatriple-ringaccuratelyanomaliesaround
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Supernova 1987A, the first naked-eye supernova observed since Kepler's supernova in 1604, defies a number of theoretical expectations. Its anomalies have long been attributed to a merger between two massive stars that occurred some 20,000 years before the explosion, but so far there has been no conclusive proof that this merger took place. Here, we present three-dimensional hydrodynamical simulations of the mass ejection associated with such a merger and the subsequent evolution of the ejecta, and we show that this accurately reproduces the properties of the triple-ring nebula surrounding the supernova.

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Cited by 3 Pith papers

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    astro-ph.HE 2026-05 unverdicted novelty 6.0 of 10

    Late-time JWST spectra of SN 2023xgo detect cool silicate or carbonaceous dust masses of order 0.01-0.03 solar masses plus narrow He I emission indicating ongoing circumstellar interaction at +377 days.

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