Infrared and optical light curves of the dwarf nova EM Cygni

Details Infrared and optical light curves of the dwarf nova EM Cygni Infrared and optical light curves of the dwarf nova EM Cygni

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..235j&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 195, Apr. 1981, p. 235-239.

Astronomy and Astrophysics

Astronomy

20

Eclipsing Binary Stars, Infrared Astronomy, Light Curve, Novae, White Dwarf Stars, Late Stars, Stellar Mass Accretion

Scientific paper

Simultaneous infrared and optical light curves of EM Cygni are reported. The infrared curves are dominated by ellipsoidal variations of the late-type star in the system, which must have spectral type near K2V. The distance to the system is estimated as approximately 320 pc and the accretion disk is shown to be close to the minimum size expected from angular-momentum considerations.

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