Does TV Col Have the longest Recorded Positive Superhumps?

Details Does TV Col Have the longest Recorded Positive Superhumps? Does TV Col Have the longest Recorded Positive Superhumps?

2000-11-20

arxiv.org/abs/astro-ph/0011361v1

Astronomy and Astrophysics

Astrophysics

5 pages, 2 eps. figures, Latex, proceedings of `Evolution of Binary and Multiple Star Systems', a Meeting in Celebration of Pe

Scientific paper

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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