SZ Lyn: New pulsational and orbital elements based on old and recent photometric observations

Details SZ Lyn: New pulsational and orbital elements based on old and recent photometric observations SZ Lyn: New pulsational and orbital elements based on old and recent photometric observations

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004coast.145...49g&link_type=abstract

Communications in Asteroseismology, vol. 145, p. 49

Physics

1

Scientific paper

SZ Lyncis (=HD 67390) is a high amplitude Delta Scuti star, discovered by Hoffmeister in 1949. Van Genderen (1967) noticed that the residuals in the O-C diagrams followed a sinusoidal variation with a period of Porb = 3.091 years. Several years later, Barnes & Moffett (1975) improved this period to Porb = 3.138 years and suggested that the sinusoidal variations in the O-C diagrams, observed by van Genderen (1967), originate from the light travel time effect, since SZ Lyn is a member of a binary system. This hypothesis was confirmed by Bardin & Imbert (1984) with measurements of radial velocities. Soliman et al. (1986) found the pulsation period to be 0.120534896 days and the orbital period 1173.5 days.

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