SN 2008S: A COOL SUPER-EDDINGTON WIND IN A SUPERNOVA IMPOSTOR

@article{Smith2009SN2A,
  title={SN 2008S: A COOL SUPER-EDDINGTON WIND IN A SUPERNOVA IMPOSTOR},
  author={N. Smith and M. Ganeshalingam and R. Chornock and A. Filippenko and Weidong Li and J. Silverman and T. Steele and C. Griffith and N. Joubert and N. Lee and T. Lowe and M. Mobberley and D. Winslow},
  journal={The Astrophysical Journal},
  year={2009},
  volume={697}
}
We present visual-wavelength photometry and spectroscopy of supernova (SN) 2008S. Based on the low peak luminosity for a SN of MR = –13.9 mag, photometric and spectral evolution unlike that of low-luminosity SNe, a late-time decline rate slower than 56Co decay, and slow outflow speeds of 600-1000 km s–1, we conclude that SN 2008S is not a true core-collapse SN and is probably not an electron-capture SN. Instead, we show that SN 2008S more closely resembles an SN impostor event like SN 1997bs… Expand

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