SN 1999ec

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SN 1999ec was a type Ib supernova that was discovered in the interacting galaxy NGC 2207 on October 2, 1999.^[2] It was found on images taken with the Katzman Automatic Imaging Telescope at the Lick Observatory.^[2] The progenitor is estimated to have had 38 times the mass of the Sun and was 5.34 million years old at the time of the outburst.^[1]

References

^ ^a ^b ^c Kuncarayakti, Hanindyo; et al. (August 2013), "Integral Field Spectroscopy of Supernova Explosion Sites: Constraining the Mass and Metallicity of the Progenitors. I. Type Ib and Ic Supernovae", The Astronomical Journal, 146 (2): 14 pp, arXiv:1305.1105, Bibcode:2013AJ....146...30K, doi:10.1088/0004-6256/146/2/30, S2CID 118671861, 30

^ ^a ^b ^c ^d ^e Jha, S.; et al. (1999). "Supernova 1999ec in NGC 2207". IAU Circular. 7269: 2. Bibcode:1999IAUC.7269....2J.

^ Barbon, R.; et al. (1999-11-01). "The Asiago Supernova Catalogue - 10 years after". Astronomy and Astrophysics Supplement Series. 139 (3): 531–536. arXiv:astro-ph/9908046. Bibcode:1999A&AS..139..531B. doi:10.1051/aas:1999404. S2CID 40532321.

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