CSS100603:112253−111037: a helium-rich dwarf nova with a 65 min orbital period

@article{Breedt2012CSS100603112253111037AH,
  title={CSS100603:112253−111037: a helium-rich dwarf nova with a 65 min orbital period},
  author={E. Breedt and B. Gaensicke and T. Marsh and D. Steeghs and A. Drake and C. Copperwheat},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2012},
  volume={425},
  pages={2548-2556}
}
  • E. Breedt, B. Gaensicke, +3 authors C. Copperwheat
  • Published 2012
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We present time-resolved optical spectroscopy of the dwarf nova CSS100603:112253−111037. Its optical spectrum is rich in helium, with broad, double-peaked emission lines produced in an accretion disc. We measure a line flux ratio He i λ5876/Hα = 1.49 ± 0.04, a much higher ratio than is typically observed in dwarf novae. The orbital period, as derived from the radial velocity of the line wings, is 65.233 ± 0.015  min. In combination with the previously measured superhump period, this implies an… CONTINUE READING

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