High-speed photometry of the new AM Herculis-type binary 2A 0311-227

Details High-speed photometry of the new AM Herculis-type binary 2A 0311-227 High-speed photometry of the new AM Herculis-type binary 2A 0311-227

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234l.113b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 234, Dec. 1, 1979, p. L113-L116.

Astronomy and Astrophysics

Astrophysics

29

Astronomical Photometry, Binary Stars, White Dwarf Stars, X Ray Stars, Flares, Light Curve, Polarimetry, Stellar Magnetic Fields

Scientific paper

High-speed optical photometry of the X-ray source 2A 0311-227 shows a light curve modulated with the 81 minute orbital period, with superposed large-amplitude flaring. The light curve, combined with Tapia's polarimetry, suggests that this system is similar to AN UMa in that it contains a white dwarf with an accreting magnetic pole that lies in the hemisphere facing the earth throughout the orbital cycle.

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