Parameters of two low-mass contact eclipsing binaries near the short-period limit

@article{Lohr2014ParametersOT,
  title={Parameters of two low-mass contact eclipsing binaries near the short-period limit},
  author={M. E. Lohr and Simon T. Hodgkin and Andrew J. Norton and Ulrich C. Kolb},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={563}
}
The two objects 1SWASP J150822.80−054236.9 and 1SWASP J160156.04+202821.6 were initially detected from their SuperWASP archived light curves as candidate eclipsing binaries with periods close to the short-period cut-off of the orbital period distribution of main sequence binaries, at∼0.2 d. Here, using INT spectroscopic data, we confirm them as d ouble-lined spectroscopic and eclipsing binaries, in contact configuration. Following modelling of their visual light curves and radial velocity… 
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  • Kai Li, Q. Xia, D. Gao
  • Physics
    Monthly Notices of the Royal Astronomical Society
  • 2019
The period distribution of contact binaries exhibits a very sharp short period cut-off at 0.22 days. In order to provide valuable information on this short period limit, we observed ten totally
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In this paper, we present the first light curve synthesis and orbital period change analysis of nine contact binaries around the short period limit. It is found that all these systems are W-subtype
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