Spectroscopic and photometric periods of six ultracompact accreting binaries

  title={Spectroscopic and photometric periods of six ultracompact accreting binaries},
  author={Matthew J. Green and T. Marsh and P. Carter and D. Steeghs and E. Breedt and V. Dhillon and S. Littlefair and S. Parsons and P. Kerry and N. G. Gentile Fusillo and R. Ashley and M. Bours and T. Cunningham and M. Dyer and B. G{\"a}nsicke and P. Izquierdo and A. Pala and Chuangwit Pattama and S. Outmani and D. Sahman and Boonchoo Sukaum and J. Wild},
  journal={arXiv: Solar and Stellar Astrophysics},
Ultracompact accreting binary systems each consist of a stellar remnant accreting helium-enriched material from a compact donor star. Such binaries include two related sub-classes, AM CVn-type binaries and helium cataclysmic variables, in both of which the central star is a white dwarf. We present a spectroscopic and photometric study of six accreting binaries with orbital periods in the range of 40--70 min, including phase-resolved VLT spectroscopy and high-speed ULTRACAM photometry. Four of… Expand
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