1. Alexandre David-Uraz (Université de Montréal) Tony Moffat (Université de Montréal) André-Nicolas Chené (NRC/HIA)

2.  General information about both targets  Position in the CVZ  Spectral variability  Light curves  Corotating Interaction Region (CIR)

3. WR115WR120  WR115 = HIP 90299  RA : 18:25:30.013  Dec : -14:38:40.90  Spectral type : WN6  B : 13.02  V : 11.84  WR120 = V* V462 Sct  RA : 18:41:00.88  Dec : -04:26:14.3  Spectral type : WN7  B : 13.31  V : 12.28

4. WR120 WR115

5. residuals mean profile variability TVS

6. WR115 WR120 7.2 hours

7. 10% NIR observation with CPAPIR@CTIO-1.5m (Ks)

8.  10.61-d period in WR120?

9. Cranmer & Owocki (1996) Dessart & Chesneau (2002)