Table 1
Name, equatorial coordinates α and δ(J2000), spectral type, effective temperature Teff, surface gravity log g and metallicity [Fe/H] of our sample stars.
| Name | α (J2000) | δ (J2000) | Teff | log g | [Fe/H] | Porbit | C/O | |||
| (h m s) | (°′′′) | (K) | (cgs) | (days) | ||||||
|
|
||||||||||
| IRAS 06338+5333 | 06 37 52.4 | + 53 31 02 | 6250 | 1.0 | –1.6 | 600 | 0.7 | |||
| IRAS 13258-8103 | 13 31 07.1 | −81 18 30 | F4Ib-G0Ib | |||||||
| HD 52961 | 07 03 39.6 | + 10 46 13 | 6000 | 0.5 | –4.8 | 1310 | 0.7 | |||
Notes. For the model parameters we refer to Waelkens et al. (1991b), De Ruyter et al. (2006), Hrivnak et al. (2008). The spectral type for IRAS 13258 was determined from optical spectroscopy by Thomas Lloyd Evans (priv. comm.). Also given is the orbital period (see references in De Ruyter et al. 2006; Gielen et al. 2007) and the C/O ratio (Luck & Bond 1984; Bond & Luck 1987; Waelkens et al. 1991b; Van Winckel et al. 1992; Hrivnak et al. 2008).
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