SIMBAD references

2015A&A...578A.136L - Astronomy and Astrophysics, volume 578A, 136-136 (2015/6-1)

Orbital period changes and the higher-order multiplicity fraction amongst SuperWASP eclipsing binaries.

LOHR M.E., NORTON A.J., PAYNE S.G., WEST R.G. and WHEATLEY P.J.

Abstract (from CDS):

Orbital period changes of binary stars may be caused by the presence of a third massive body in the system. Here we have searched the archive of the Wide Angle Search for Planets (SuperWASP) project for evidence of period variations in 13927 eclipsing binary candidates. Sinusoidal period changes, strongly suggestive of third bodies, were detected in 2% of cases; however, linear period changes were observed in a further 22% of systems. We argue on distributional grounds that the majority of these apparently linear changes are likely to reflect longer-term sinusoidal period variations caused by third bodies, and thus estimate a higher-order multiplicity fraction of 24% for SuperWASP binaries, in good agreement with other recent figures for the fraction of triple systems amongst binary stars in general.

Abstract Copyright:

Journal keyword(s): stars: variables: general - binaries : close - binaries: eclipsing

VizieR on-line data: <Available at CDS (J/A+A/578/A136): tablea1.dat tablea2.dat tablea3.dat tablea4.dat tablea5.dat tablea6.dat>

Simbad objects: 839

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2021.07.29-15:43:23

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