Ejection of the Massive Hydrogen-rich Envelope Timed with the Collapse of the Stripped SN 2014C

@article{Margutti2017EjectionOT,
  title={Ejection of the Massive Hydrogen-rich Envelope Timed with the Collapse of the Stripped SN 2014C},
  author={Raffaella Margutti and Atish Kamble and Dan Milisavljevic and Emmanouil Zapartas and Selma E. de Mink and Maria R. Drout and Ryan Chornock and Guido Risaliti and B. Ashley Zauderer and Michael F. Bietenholz and Matteo Cantiello and Sayan Chakraborti and Laura B. Chomiuk and Wen-fai Fong and Brian W. Grefenstette and Cristiano Guidorzi and Robert P. Kirshner and Jerod Parrent and Daniel J. Patnaude and Alicia Margarita Soderberg and N. C. Gehrels and Fiona A. Harrison},
  journal={The Astrophysical Journal},
  year={2017},
  volume={835}
}
We present multi-wavelength observations of SN 2014C during the first 500 days. These observations represent the first solid detection of a young extragalactic stripped-envelope SN out to high-energy X-rays ∼40 keV. SN 2014C shows ordinary explosion parameters (Ek ∼ 1.8 × 1051 erg and Mej ∼ 1.7 M⊙). However, over an ∼1 year timescale, SN 2014C evolved from an ordinary hydrogen-poor supernova into a strongly interacting, hydrogen-rich supernova, violating the traditional classification scheme of… 
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