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Does TV Col Have the longest Recorded Positive Superhumps?

A. Retter·C. Hellier·T. Augusteijn·T. Naylor
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Abstract

Re-examination of extensive photometric data of TV Col reveals evidence for a permanent positive superhump. Its period (6.4 h) is 16 percent longer than the orbital period and obeys the well known relation between superhump period excess and binary period. At 5.5-h, TV Col has an orbital period longer than any known superhumping cataclysmic variable and, therefore, a mass ratio which might be outside the range at which superhumps can occur according to the current theory. We suggest several solutions for this problem.

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A. Retter, C. Hellier, T. Augusteijn, T. Naylor. 2000-11-20. Does TV Col Have the longest Recorded Positive Superhumps?. https://arxiv.org/abs/astro-ph/0011361

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