Journal
SCIENCE
Volume 324, Issue 5926, Pages 486-488Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1170198
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Funding
- STFC [PP/D508212/1, PP/C506805/1, ST/G000921/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/C506805/1, ST/G000921/1, PP/D508212/1] Funding Source: researchfish
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Using images from the Hubble Space Telescope and the Gemini Telescope, we confirmed the disappearance of the progenitors of two type II supernovae (SNe) and evaluated the presence of other stars associated with them. We found that the progenitor of SN 2003gd, an M-supergiant star, is no longer observed at the SN location and determined its intrinsic brightness using image subtraction techniques. The progenitor of SN 1993J, a K-supergiant star, is also no longer present, but its B-supergiant binary companion is still observed. The disappearance of the progenitors confirms that these two supernovae were produced by red supergiants.
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