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Far-Ultraviolet Spectroscopy of Three Long-Period Novalike Variables

Sion, Edward M.; Godon, Patrick; Bisol, Alexandra C.

We have selected three novalike variables at the long-period extreme of novalike orbital periods: V363 Aur, RZ Gru, and AC Cnc, all with IUE archival far-ultraviolet spectra. All are UX UMa-type novalike variables and all have P_orb > 7 hr. V363 Aur is a bona fide SW Sex star, and AC Cnc is a probable one, while RZ Gru has not proven …