Table 1
Observation log of the echelle spectroscopy of V351 Ori.
| Date | HJD – 2 454 000 | texp(s) | Hα profile typea |
|
|
|||
| 2008-10-27 | 767.28–767.41 | 2700 × 4 | IV-R, inverse P Cygni |
| 2008-10-30 | 770.38 | 2700 × 1 | II-R, double peak |
| 2008-12-11 | 812.32 | 2700 × 1 | IV-R |
| 2008-12-28 | 829.10–829.32 | 2700 × 6 | IV-R |
| 2008-12-29 | 830.10–830.37 | 2700 × 8 | IV-R |
| 2009-01-17 | 849.11–849.22 | 2700 × 4 | III-R, double peak |
| 2009-01-18 | 850.10–850.32 | 2700 × 4 | III-R |
| 2009-01-19 | 851.09–851.35 | 2700 × 5 | III-R |
| 2009-01-20 | 852.07–852.18 | 2700 × 2 | III-R |
| 2009-03-02 | 893.11–893.15 | 2700 × 2 | III-R |
| 2009-03-03 | 894.20 | 2700 × 1 | II-R |
| 2009-03-29 | 920.16 | 2700 × 1 | IV-R |
| 2009-03-30 | 921.07–921.11 | 2700 × 2 | II-R |
| 2009-03-31 | 922.08 | 2700 × 1 | III-R |
| 2009-04-26 | 948.07 | 2700 × 1 | III-R |
| 2009-04-27 | 949.07 | 2700 × 1 | II-R |
| 2009-04-28 | 950.07 | 2700 × 1 | II-R |
Notes.
Based on the classification scheme adopted from Reipurth et al. (1996). Type II-R profile represents a double peak profile where the red-sided peak exceeds the strength of the blue-sided peak by half. Type III-R also represents double peak profile with the red-sided peak less than half the strength of the blue-sided peak. Type IV-R represents the inverse P Cygni profile.
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