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Orbital, Superhump And Superorbital Periods In The Cataclysmic Variables Aq Mensae And Im Eridani, E. Armstrong, J. Patterson, E. Michelsen, John Thorstensen
Orbital, Superhump And Superorbital Periods In The Cataclysmic Variables Aq Mensae And Im Eridani, E. Armstrong, J. Patterson, E. Michelsen, John Thorstensen
Dartmouth Scholarship
We report photometric detections of orbital and superorbital signals, and negative orbital sidebands, in the light curves of the nova-like cataclysmic variables AQ Mensae and IM Eridani. The frequencies of the orbital, superorbital, and sideband signals are 7.0686 (3), 0.263 (3), and 7.332 (3) cycles per day (c/d) in AQ Mensae, and 6.870 (1), 0.354 (7), and 7.226 (1) c/d in IM Eridani. We also find a spectroscopic orbital frequency in IM Eridani of 6.86649 (2) c/d. These observations can be reproduced by invoking an accretion disc that is tilted with respect to the orbital plane. This model works well …