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Figure 1: APT measurements for WZ Cas. Top panel: V light change. Large symbols are APT data, small dots indicate AAVSO data (see text). Visual and photometric data typically show an offset in magnitude (see the discussion in e.g. Lebzelter & Kiss 2001). For an easier comparison the AAVSO data were scaled to the right-hand axis which is shifted slightly relatively to the left-hand axis (APT data). The shift is estimated from typical values (Lebzelter & Kiss 2001) to give an approximate fit to the APT data and should not be taken as an accurate value. Bottom panel: variation in V-I. |
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Figure 2: Comparison of light-curve data from AAVSO (open symbols) and AFOEV (filled symbols). Both datasets were subjected to an averaging procedure as described in the text. |
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Figure 3: The whole available light-curve of WZ Cas. Small dots show the measurements from the AAVSO database (see text), large dots indicate data obtained by RFG. |
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Figure 4: Variability of the most probable period of WZ Cas with time from wavelet analysis. The values for the shorter period were derived from a separate analysis with a lower maximum period limit. |
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Figure 5: First part of the velocity variations of WZ Cas on top of the AAVSO light change (small dots). Open boxes denote near-infrared measurements, filled boxes results from Coravel. |
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Figure 6: Recent velocity variations of WZ Cas ( bottom panel) compared with light variations. |
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Figure 7: Two examples illustrating the change of the correlation dip. Left panel: 1999 Dec. 28 (JD 2 451 540). Right panel: 2003 May 24 (JD 2 452 783). |
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Figure 8:
Variations of the shape of the correlation dip with time. Middle
panel: equivalent width. Bottom panel: apparent ![]() |
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