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Spectral Disentangling Reveals Deep CNO-cycle Exposure in ET Cru

  • Authors: Gökhan Yücel, Volkan Bakış, Christian Nitschelm, Timur Şahin, Ferhat Güney

Gökhan Yücel et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 9.

Comparison of photospheric elemental abundances (﹩\mathrm{log}\varepsilon (X)﹩) for the primary (gainer) and secondary (donor) components of the Algol-type binary system ET Cru. The plot shows the spectroscopically derived abundances of He, C, N, O, Mg, Al, Si, S, and Fe in both stars. Error bars represent 1σ uncertainties.

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