Table 1
Binary post-AGB stars in our interferometric survey.
| Nr. | IRAS | Name | α2000 | δ2000 | Spectral | Pbinary | a1 sin(i) | f(M) | RVb | Ref. |
| [h m s] | [ o ’ ”] | type | [days] | [AU] | [M⊙] | |||||
|
|
||||||||||
| 1 | 04440+2605 | RV Tau | 04 47 06.7 | +26 10 45.6 | K3pv | 1180 ± 15 | y | Zsoldos (1996) | ||
| 2 | 07008+1050 | HD 52961 | 07 03 39.6 | +10 46 13.1 | F6I | 1297 ± 7 | 1.54 | 0.29 | y | Van Winckel et al. (1999) |
| 3 | 07284-0940 | U Mon | 07 30 47.5 | −09 46 36.8 | K0IIb | ~2600 | y | Pollard et al. (2006) | ||
| 4 | 08011-3627 | AR Pup | 08 03 01.6 | −36 35 47.9 | F0I | 1250 ± 300 | y | Kiss et al. (2007) | ||
| 5 | 08544-4431 | 08 56 14.2 | −44 43 10.7 | F3 | 508 ± 2 | 0.39 | 0.03 | − | Maas et al. (2003) | |
| 6 | 09256-6324 | IW Car | 09 26 53.3 | −63 37 48.9 | F7I | ~1440 | y | Pollard et al. (1996) | ||
| 7 | 10158-2844 | HR 4049 | 10 18 07.6 | −28 59 31.2 | A4Ib/II | 434 ± 1 | 0.61 | 0.16 | y | Waelkens et al. (1991a) |
| 8 | 10174-5704 | 10 19 16.9 | −57 19 26.0 | − | 323 ± 50 | 0.17 | 0.007 | − | Maas (2003) | |
| 9 | 10456-5712 | HD 93662 | 10 47 38.4 | −57 28 02.7 | K5 | 572 ± 6 | 0.015 | 1.4 × 10-6 | − | Maas (2003) |
| 10 | 11385-5517 | HD 101584 | 11 40 58.8 | −55 34 25.8 | A6Ia | 218 ± 1 a | y | Bakker et al. (1996) | ||
| 11 | 12185-4856 | SX Cen | 12 21 12.6 | −49 12 41.1 | G3V | 592 ± 13 | 1.23 | 0.70 | y | Deroo et al. (2006) |
| 12 | 12222-4652 | HD 108015 | 12 24 53.5 | −47 09 07.5v | F4Ib/II | 914 ± 4 | 0.29 | 0.004 | − | van Winckel et al. (2009) |
| 13 | 15469-5311 | 15 50 43.8 | −53 20 43.3 | F3 | 390 ± 1 | 0.42 | 0.07 | − | van Winckel et al. (2009) | |
| 14 | 17038-4815 | 17 07 36.6 | −48 19 08.6 | G2p | 1386 ± 12 | 1.5 | 0.22 | y | Manick et al. (2017) | |
| 15 | 17243-4348 | LR Sco | 17 27 53.6 | −43 50 46.3 | G2 | ~475 | − | Maas (2003) | ||
| 16 | 17534+2603 | 89 Her | 17 55 25.2 | +26 03 00.0 | F3 | 288 ± 1 | 0.08 | 8 × 10-4 | − | Waters et al. (1993) |
| 17 | 18281+2149 | AC Her | 18 30 16.2 | +21 52 00.6 | F2Iep | 1194 ± 6 | 1.39 | 0.25 | − | Van Winckel et al. (1998) |
| 18 | 19125+0343 | 19 15 01.2 | +03 48 42.7 | F2 | 520 ± 2 | 0.58 | 0.097 | − | van Winckel et al. (2009) | |
| 19 | 22327-1731 | HD 213985 | 22 35 27.5 | −17 15 26.9 | A0III | 258.6 ± 0.3 | 0.79 | 0.97 | y | Waelkens et al. (1995) |
Notes. We give the coordinates together with the spectral type retrieved from Simbad. Most objects are confirmed binaries and some orbital parameters (orbital period, semi-major axis asin(i), and mass function f(M)) are provided. We note for which targets the photometric “RVb” phenomenon has been reported.
Díaz et al. (2007) reported a period of 144 d on an IAU symposium.
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