The Orbital Period of the Eclipsing Dwarf Nova V729 Sagittarii

Details The Orbital Period of the Eclipsing Dwarf Nova V729 Sagittarii The Orbital Period of the Eclipsing Dwarf Nova V729 Sagittarii

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000pasp..112..349c&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 112, Issue 769, pp. 349-353.

Astronomy and Astrophysics

Astronomy

2

Stars: Binaries: Eclipsing, Stars: Individual (V729 Sagittarii), Stars: Novae, Cataclysmic Variables

Scientific paper

We have discovered that V729 Sgr, an object listed as a possible rapid irregular variable in the fourth edition of the General Catalogue of Variable Stars, is an eclipsing cataclysmic variable with an orbital period of 0.1734055 days and an eclipse depth of 0.2-0.5 mag. The shape of the light curve is quite variable. When observed in the R filter the light curve presents a pronounced sinusoidal modulation with an amplitude of ~0.4-0.5 mag. In addition, brightness variations with timescales and characteristics suggesting dwarf nova eruptions are seen in the historical photometric data and in the our own data. We classify V729 Sgr as a new member of dwarf nova class, possibly of Z Cam type.

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