Photometric Study of the short period W UMa system - FZ Orionis

Details Photometric Study of the short period W UMa system - FZ Orionis Photometric Study of the short period W UMa system - FZ Orionis

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007iaus..240..128p&link_type=abstract

Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240, he

Astronomy and Astrophysics

Astrophysics

Scientific paper

W Ursae Majoris (W UMa) variables are the most extreme examples of tidally distorted stars in contact binaries in which both components fills or overfills their inner Lagrangian zero-velocity surfaces, known as Roche lobes. One of the prototypes of W UMa variables - FZ Orionis is studied. Photoelectric B and V observations of this eclipsing binary system obtained from the Japal-Rangapur Observatory show period changes indicating cyclic process of mass transfer and mass loss from the system. The light curves are analyzed using the Wilson-Devinney method and the system parameters are derived. The evolutionary status of the system is discussed.

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