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Table 1

Source parameters.

Target Spec. type P D Teff C/O
[days] [pc] [K]
U Hya C6.5,3(N2)(Tc) 450 208 2965 1.04
W Ori C5,4(N5) 212 377 2625 1.16

Notes. Variability and spectral data are taken from the GCVS (Samus et al. 2017), distances from HIPPARCOS parallaxes (van Leeuwen 2007). Effective temperatures are from Bergeat et al. (2001) and C/O from Lambert et al. (1986).

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