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Figure 1: V2051 Oph average out-of-eclipse spectrum. All lines are double-peaked with prominent emission from the Balmer and He I lines. He II and Fe II lines are also in emission, albeit weaker. |
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Figure 2: V2051 Oph trailed spectra of the 11 most prominent lines. The spectra have been ordered according to phase. |
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Figure 3: V2051 Oph trailed spectrograms. The x-axis represents the velocity in km s-1 and the y-axis the orbital phase. The grayscale contrast has been adjusted to emphasise between emission (black) and absorption (white). |
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Figure 4:
Modulation of the double-peaks separation. Superimposed is the dominant periodicity of
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Figure 5: Radial extension of all emission lines. Dashed lines correspond to the refined outer radii when the tidal effect is taken into account. |
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Figure 6:
V2051 Oph Doppler maps. Top to bottom rows correspond to the Balmer lines, He I lines and the Fe II triplet, respectively. The x and y axis represent the Vx and Vy velocities respectively, spanning from -1500 to 1500
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