SN 2006jc: A Wolf-Rayet Star Exploding in a Dense He-rich Circumstellar Medium

  title={SN 2006jc: A Wolf-Rayet Star Exploding in a Dense He-rich Circumstellar Medium},
  author={Ryan J. Foley and Nathan Smith and Mohan Ganeshalingam and Weidong Li and Ryan Chornock and Alexei V. Filippenko},
  journal={The Astrophysical Journal},
We present optical photometry and spectra of the peculiar Type Ib supernova (SN) 2006jc. Strong and relatively narrow He I emission lines indicate the progenitor star exploded inside a dense circumstellar medium (CSM) rich in He. An exceptionally blue apparent continuum persists from our first spectrum obtained 15 days after discovery through our last spectrum ~1 month later. Based on the presence of isolated Fe II emission lines, we interpret the blue "continuum" as blended, perhaps… 

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