Towards an improvement in the spectral description of central stars of planetary nebulae

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Fig. A.20.

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Normalized spectra of H-rich CSPN (see Table A.3). For these objects we only detect the Balmer series. The interstellar absorption bands at λ4428, the complex at 5780 and 5890–6 are not indicated. Blue and red spectral ranges features as Fig. A.1.

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