Spin-up of the white dwarf in the intermediate polar BG Canis Minoris/3A 0729 + 103

Details Spin-up of the white dwarf in the intermediate polar BG Canis Minoris/3A 0729 + 103 Spin-up of the white dwarf in the intermediate polar BG Canis Minoris/3A 0729 + 103

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...247...64a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 247, no. 1, July 1991, p. 64-72.

Astronomy and Astrophysics

Astrophysics

11

Cataclysmic Variables, Stellar Rotation, White Dwarf Stars, Accretion Disks, Binary Stars, Light Curve, Stellar Spectrophotometry

Scientific paper

Using 29 times of maximum light of the pulsational light curve of the intermediate polar BG Canis Minoris, it is found that the white dwarf rotation period decreases on a timescale of (0.566 + or - 0.033) million yr. A new orbital period that it is equal to the 1-cycle alias of the previously accepted period determined from the timing of two orbital X-ray minima. Using estimates of both the magnetic dipole moment of the white dwarf and the mass accretion rate, and the disk accretion model of Lamb and Patterson (1983), a white dwarf mass of about 1.0 solar masses is obtained.

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