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Table 1.

Target system properties.

Object HD 52961 BD+46°442 TW Cam IRAS 19135+3937 HP Lyr
parameter
TpAGB (K) 6000 6250 5250 6250 6000
[Fe/H] −4.8 −0.8 −0.5 −1.0 −1.0
Depletion Strong None None None Strong
P (d) 1288.6 ± 0.3 140.82 ± 0.02 662.2 ± 5.3 126.97 ± 0.08 1818 ± 80
e 0.23 ± 0.01 0.085 ± 0.005 0.25 ± 0.04 0.13 ± 0.03 0.20 ± 0.04
LGaia (L) 3300 400 + 1600 $ 3300^{+1600}_{-400} $ 2400 1100 + 1100 $ 2400^{+1100}_{-1100} $ 1500 500 + 400 $ 1500^{+400}_{-500} $ 3600 1200 + 700 $ 3600^{+700}_{-1200} $ 11600 6200 + 12100 $ 11600^{+12100}_{-6200} $
ipar (° ) 70.6 ± 0.6 49.6 ± 0.6 25.7 ± 0.2 71.8 ± 0.5 18.6 ± 0.7
R1, par (R) 131 ± 4 27.3 ± 0.6 83.0 ± 0.6 22.6 ± 0.4 75 ± 1

Nobs 42 40 36 32 40
(S/N)avg 110 70 70 40 60
Refs. 1, 2, 6, 7, 10 3, 6, 7, 8 4, 6, 7, 9 2, 6, 7, 8 5, 6, 7, 9

Notes. Relevant properties of the target systems studied in this work, including the primary’s effective temperature TpAGB, metallicity [Fe/H] and refractory depletion strength. In addition, we list the binary period P and eccentricity e, the Gaia DR3 luminosity LGaia, and the inclination ipar and primary star radius R1, par found from previous parametric modelling. Below that, the number of selected observed spectra Nobs, and their average signal-to-noise ratio (S/N)avg, as well as the references used. TpAGB and [Fe/H] values (formal errors of 250 K and 0.3 dex, respectively) were based on (1) Waelkens et al. (1991), (2) Rao & Giridhar (2014), (3) Gorlova et al. (2012), (4) Giridhar et al. (2000) and (5) Giridhar et al. (2005). The refractory depletion strength classification, as well as P and e were taken from (6) Oomen et al. (2018). LGaia was derived from (7) Gaia Collaboration (2023), ipar and R1, par from (8) Bollen et al. (2020), (9) Bollen et al. (2021) and (10) Bollen et al. (2022). We note that the luminosities are not fully reliable, as none of these systems were flagged as astrometric binaries in Gaia DR3.

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