Detection of Tertiary Components in W Ursa Majoris Systems

Details Detection of Tertiary Components in W Ursa Majoris Systems Detection of Tertiary Components in W Ursa Majoris Systems

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...504..978h&link_type=abstract

Astrophysical Journal v.504, p.978

Astronomy and Astrophysics

Astronomy

17

Stars: Binaries: Close, Methods: Observational

Scientific paper

Extensive spectroscopic observations with good phase coverage of a small sample of W UMa systems were made at the David Dunlap Observatory. The data were found to be very sensitive to the presence of tertiary companions. All of the systems studied were found, or were previously known, to contain companion stars or binaries, including two systems not previously proven to have companions: SW Lac and V502 Oph. We suggest that the existence of tertiary components in W UMa systems is more widespread than previously known.

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