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Spectral Variability and Light Curves of WR115 and WR120 in CVZ

Explore spectral variability and light curves of WR115 and WR120 in CVZ region, analyzing their Corotating Interaction Region (CIR) and TVS Residuals. Investigate their characteristics and behavior in depth.

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Spectral Variability and Light Curves of WR115 and WR120 in CVZ

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Presentation Transcript

  1. Proposed Future wr targets :WR115 and wr120 Alexandre David-Uraz (Université de Montréal) Tony Moffat (Université de Montréal) André-Nicolas Chené (NRC/HIA)

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

  3. General information about the targets WR115 WR120 • 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. Targets in the MOST CVZ WR120 WR115

  5. Spectral variability residuals mean profile variability TVS

  6. Residuals - HeII5411 line WR115 WR120 7.2 hours

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

  8. Light Curves • 10.61-d period in WR120?

  9. Corotating Interaction Region Dessart & Chesneau (2002) Cranmer & Owocki (1996)

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