MULTI-WAVELENGTH OBSERVATIONS OF SUPERNOVA 2011ei: TIME-DEPENDENT CLASSIFICATION OF TYPE IIb AND Ib SUPERNOVAE AND IMPLICATIONS FOR THEIR PROGENITORS

@article{Milisavljevic2013MULTIWAVELENGTHOO,
  title={MULTI-WAVELENGTH OBSERVATIONS OF SUPERNOVA 2011ei: TIME-DEPENDENT CLASSIFICATION OF TYPE IIb AND Ib SUPERNOVAE AND IMPLICATIONS FOR THEIR PROGENITORS},
  author={Danny Milisavljevic and Raffaella Margutti and Alicia Margarita Soderberg and Giusto Pignata and Laura Beth Chomiuk and Robert A. Fesen and Filomena Bufano and Nathan Sanders and Jerod T. Parrent and S. Parker and Paolo A. Mazzali and Elena Pian and Thomas Pickering and Douglas I. Buckley and Simon A. Crawford and Alison M. Gulbis and Christian Hettlage and Eric Hooper and Kenneth Hugh Nordsieck and D. A. O'donoghue and T.-O. Husser and S. Potter and Alexei Kniazev and Pieter B. Kotz{\'e} and Encarni Romero-Colmenero and Petri Vaisanen and Michael Wolf and Michael F. Bietenholz and Norbert Bartel and C Fransson and Emma S. Walker and Andreas Brunthaler and Subhadip Chakraborti and Emily M. Levesque and Andrew Macfadyen and Christian Drescher and Guenter Bock and Pauline Marples and Joseph P. Anderson and Stefano Benetti and D. Reichart and Kevin Ivarsen},
  journal={The Astrophysical Journal},
  year={2013},
  volume={767},
  pages={71}
}
  • Danny Milisavljevic, Raffaella Margutti, +39 authors Kevin Ivarsen
  • Published 2013
  • Physics
  • The Astrophysical Journal
  • We present X-ray, UV/optical, and radio observations of the stripped-envelope, core-collapse supernova (SN) 2011ei, one of the least luminous SNe IIb or Ib observed to date. Our observations begin with a discovery within � 1 day of explosion and span several months afterward. Early optical spectra exhibit broad, Type II-like hydrogen Balmer profiles that subside rapidly and are replaced by Type Ib-like He-rich features on the timescale of one week. High-cadence monitoring of this transition… CONTINUE READING

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