EX Hydrae - Modulated mass transfer or intermediate polar

Details EX Hydrae - Modulated mass transfer or intermediate polar EX Hydrae - Modulated mass transfer or intermediate polar

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.196p..59w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 196, Aug. 1981, p. 59P-63P.

Astronomy and Astrophysics

Astronomy

23

Eclipsing Binary Stars, Light Curve, Mass Transfer, Polar Coordinates, Stellar Spectrophotometry, White Dwarf Stars, Novae, Periodic Variations, Stellar Luminosity, Stellar Mass, X Ray Astronomy

Scientific paper

The morphology of total eclipses in the dwarf nova EX Hya shows that the 67-min cycle in this system is caused by periodic variations in the luminosity of the bright spot. This can be explained either by modulated mass transfer arising from pulsations of the cool component of the binary system, or by beamed emission from the white dwarf if it has a rotation period of 40 min.

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