EXO 023432-5232.3 - an eclipsing AM Herculis binary

Details EXO 023432-5232.3 - an eclipsing AM Herculis binary EXO 023432-5232.3 - an eclipsing AM Herculis binary

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.234p..19b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 234, Sept. 1, 1988, p. 19P-27P.

Astronomy and Astrophysics

Astronomy

25

Eclipsing Binary Stars, Exosat Satellite, Infrared Astronomy, X Ray Sources, Astronomical Photometry, Cyclotron Radiation, Light Curve

Scientific paper

The authors report observations of the serendipitous EXOSAT source EXO 023432-5232.3 which confirm that the object is an AM Herculis type binary and show the presence of eclipses by the companion star. From high-speed photometry of the eclipses they deduce that the cyclotron emission region is less than one seventh the size of the white dwarf. From the infrared magnitude of the secondary a distance of 430 pc is deduced. The authors discuss constraints on the system geometry.

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