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The progenitor of SN1987A
- R. Gilmozzi1,
- A. Cassatella1,
- J. Clavel1,
- C. Fransson2,
- R. Gonzalez1,
- C. Gry1,
- N. Panagia3,4,
- A. Talavera1 &
- …
- W. Wamsteker1
Naturevolume 328, pages318–320 (1987)Cite this article
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Abstract
One of the reasons why the bright supernova SN1987A is of such importance is the fact that its proximity would allow for the first time, the identification of a supernova progenitor star. Attempts to establish which star was the progenitor have led to uncertainties, however. Here we use spatial and spectroscopic information from International Ultraviolet Explorer (IUE) spectra in the range 1,150–1,950Å to demonstrate that Sk–69 202, the star coinciding positionally with the Large Magellanic Cloud (LMC) supernova, has disappeared from sight. Two weaker sources, named star 2 and star 3 in the astrometric analysis of the image of Sk–69 202 before the supernova outburst, are still present in the ultraviolet spectra. We isolate their spectra and give a spectral classification. We conclude that Sk-69 202 is the progenitor the LMC supernova.
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References
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Authors and Affiliations
ESA IUE Observatory, aptdo, 54065, Madrid, Spain
R. Gilmozzi, A. Cassatella, J. Clavel, R. Gonzalez, C. Gry, A. Talavera & W. Wamsteker
Stockholm Observatory, S-133 00, Saltsjobaden, Sweden
C. Fransson
Space Telescope Science Institute, Baltimore, USA
N. Panagia
Istituto di Astronomia, Universita' di Catania, Italy
N. Panagia
- R. Gilmozzi
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- A. Cassatella
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- J. Clavel
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- C. Fransson
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- R. Gonzalez
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- C. Gry
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- N. Panagia
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- A. Talavera
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- W. Wamsteker
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Gilmozzi, R., Cassatella, A., Clavel, J.et al. The progenitor of SN1987A.Nature328, 318–320 (1987). https://doi.org/10.1038/328318a0
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