| Object | Period (days) | Line(s) | References |
|---|---|---|---|
| U CrB | 3.452 | Halpha |
Agafonov,
Richards, & Sharova 2006, ApJ, 652, 1547, Agafanov, Sharova, & Richards, 2009, ApJ, 690, 1730 Richards, Sharova, & Agafonov, 2009, ApJ, submitted |
| RS Vul | 4.478 | Halpha | Richards, Sharova, & Agafonov, 2009, ApJ, submitted |