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Figure 1: The blue light curve before ( top) and after ( bottom) prewhitening the frequencies f1,f2,f3. The four different datasets are indicated. |
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Figure 2: Prewhitened y and u-b light- and colour curves (see text). The binary model from Sect. 5 is superimposed. |
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Figure 3:
The model orbit from RV differences (full line), compared with RVs
from cross-correlations with a template (thick lines). For ![]() |
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Figure 4:
Selection of matching pairs (fat dots) among all combinations for the
criteria (see text): linear cutoff (line), pair elements separated
>4.5 h in
time,
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Figure 5: Two-dimensional power spectra for wavelength regions centered on the Si III 4553 Å ( left) and O II 4596 Å ( right) lines. Owing to insufficient data sampling, strong aliasing makes the significant frequencies appear "smeared''. The three photometric frequencies are indicated ("-''). Note the similarity of the periodicities for the two lines. |
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Figure 6:
Summed power spectrum from the combined O II 4596 Å
and Si III 4553 Å regions ( top). The three photometric
frequencies are indicated with dotted lines. The two lower panels
show the power spectra with respectively one (7.1651
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Figure 7:
Integrated-flux variations, in units of normalised flux per pixel,
inside a 5-bin wide core region of Si III 4553 Å. The panels
show phase diagrams for each of the detected pulsational periods, each
successive
one after prewhitening for the previous one above. Sinusoidal fits are
superimposed for the individual frequencies. The panels show the
monochromatic input light curve phased with
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Figure 8: Residuals of the uvby light curves from the DC solution with the geometry free (Table 9). Dotted lines delimit the start and end of both eclipses. From top to bottom: y,b,v,u. |
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Figure 9:
The positions of the components of HD 92024 in an evolutionary
diagram for ![]() ![]() ![]() |
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