Comparative statistics and origin of triple and quadruple stars

@article{Tokovinin2008ComparativeSA,
  title={Comparative statistics and origin of triple and quadruple stars},
  author={Andrei Tokovinin},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2008},
  volume={389},
  pages={925-938}
}
  • A. Tokovinin
  • Published 19 June 2008
  • Physics
  • Monthly Notices of the Royal Astronomical Society
The statistics of catalogued quadruple stars consisting of two binaries (hierarchy 2 + 2), is studied in comparison with triple stars, with respective sample sizes of 81 and 724. Seven representative quadruple systems are discussed in greater detail. The main conclusions are as follows. (i) Quadruple systems of e Lyr type with similar masses and inner periods are common, in 42 per cent of the sample the outer mass ratio is above 0.5 and the inner periods differ by less than 10 times. (ii) The… 
Orbits and Structure of the Quadruple Systems GJ 225.1 and FIN 332
Only a handful of quadruple systems with two accurate inner visual orbits are known. Architecture of two such systems is studied here to determine period ratios, mutual orbit orientation, and other
From Binaries to Multiples. II. Hierarchical Multiplicity of F and G Dwarfs
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Greatly enhanced eccentricity oscillations in quadruple systems composed of two binaries: implications for stars, planets and transients
We study the orbital evolution of hierarchical quadruple systems composed of two binaries on a long mutual orbit, where each binary acts as a Kozai-Lidov (KL) perturber on the other. We find that the
Shrinking orbits in hierarchical quadruple star systems
  • A. Hamers
  • Physics, Geology
    Monthly Notices of the Royal Astronomical Society
  • 2018
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