DO Leonis - A new eclipsing cataclysmic variable

Details DO Leonis - A new eclipsing cataclysmic variable DO Leonis - A new eclipsing cataclysmic variable

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..558a&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, May 1990, p. 558-564.

Astronomy and Astrophysics

Astronomy

7

Astronomical Photometry, Cataclysmic Variables, Eclipsing Binary Stars, Novae, Orbit Calculation, Stellar Orbits, Electrophotometry, Sky Brightness, Stellar Spectra

Scientific paper

Photometric and spectroscopic observations of DO Leo have been obtained using the McDonald Observatory high-speed CCD photometer and a conventional two-channel photoelectric photometer. The data reveal eclipses that are approximately 1.5 m deep. A total of nine eclipses were observed in February and March 1988 and in April 1989. These data were used to establish an orbital period of 0.2345147(2) d. A low-resolution optical spectrum reveals significant He II 4686 emission in addition to the characteristic Balmer and He I emission lines.

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