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Table 2
Detection level of the V and Δφ change in Hα.
| Date | φ | Detection V | Detection Δφ |
|
|
|||
| 2008-07-29 | –0.012 | 2.0σcont/3.2σHα | 1.8σcont |
| 2008-08-07 | –0.006 | 1.0σcont/1.7σHα | 1.5σcont |
| 2009-08-26 | 0.262 | –/1.0σHα | – |
| 2010-08-01 | 0.499 | –/– | 3.4σcont |
| 2011-08-28 | 0.773 | 1.5σcont/2.1σHα | – |
| 2011-10-16 | 0.806 | 1.0σcont/1.8σHα | 4.6σcont |
Notes.σcont and σHα are the errors in the continuum and in the line, respectively (computed as in Sect. 2.2).
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