EXO 023432-5232.3 - A new 114-minute probable AM-Herculis-type binary

Details EXO 023432-5232.3 - A new 114-minute probable AM-Herculis-type binary EXO 023432-5232.3 - A new 114-minute probable AM-Herculis-type binary

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175l...9b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. L9-L12.

Astronomy and Astrophysics

Astrophysics

26

Cataclysmic Variables, Stellar Spectrophotometry, X Ray Binaries, Cyclotron Radiation, Exosat Satellite, Periodic Variations, Stellar Spectra, White Dwarf Stars, X Ray Spectra

Scientific paper

A new probable AM Herculis binary was found in the course of an optical identification program of serendipitous X-ray sources detected with the EXOSAT satellite. Spectrophotometry of the 19 mag optical counterpart shows that it carries most of the hallmarks of AM Herculis binaries. The orbital period is 114.6 minutes and makes it the sixth AM Her star in the small period range of 113 to 115 minutes. The system is at a probable distance of 300 - 500 pc. The authors comment on the space density of AM Herculis binaries.

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