Table 5
Photometric and radial-velocity parameters for our sample of 20 calibrating Cepheids.
| Name | V [mag] | ΔV [mag] | γ [kms−1] | ΔRV [kms−1] | LC source (a) | Period [days] | T0 − 2400000 [days] | Ephemerides source (b) |
|---|---|---|---|---|---|---|---|---|
| R TrA | 6.66 ± 0.02 | 0.56 ± 0.02 | −12.44 ± 2.54 | 28.1 ± 2.2 | 1 | 3.3892582 | 44423.59377 | 1 |
| T Vul | 5.75 ± 0.03 | 0.64 ± 0.04 | 0.85 ± 0.11 | 34.5 ± 3.5 | 1 | 4.435462 | 57 632.18950 | 0 |
| 50735.20310 | 2 | |||||||
| FF Aql | 5.19 ± 0.01 | 0.33 ± 0.03 | −11.36 ± 0.10 | 16.1 ± 1.5 | 2 | 4.470916 | 56888.66207 | 0 |
| S Cru | 6.60 ± 0.02 | 0.73 ± 0.03 | −4.70 ± 0.28 | 33.8 ± 4.3 | 1 | 4.68973 | 55279.67331 | 0 |
| δ Cep | 3.94 ± 0.01 | 0.84 ± 0.04 | −16.32 ± 0.20 | 38.9 ± 4.9 | 1 | 5.3663 | 56917.54900 | 0 |
| Y Sgr | 5.74 ± 0.02 | 0.72 ± 0.03 | −2.84 ± 3.02 | 34.2 ± 3.0 | 1 | 5.7733866 | 54946.78504 | 1 |
| XX Sgr | 8.86 ± 0.02 | 0.87 ± 0.04 | 12.30 ± 0.46 | 41.6 ± 1.2 | 1 | 6.4243013 | 54946.67631 | 1 |
| η Aql | 3.89 ± 0.02 | 0.78 ± 0.03 | −14.47 ± 0.63 | 42.1 ± 2.2 | 1 | 7.1768572 | 50724.43545 | 1 |
| S Sge | 5.61 ± 0.03 | 0.72 ± 0.03 | −16.40 ± 0.25 | 39.3 ± 4.7 | 1 | 8.3445707 | 57636.28926 | 0 |
| 48 746.52000 | 3 | |||||||
| 8.3823514 | 50339.17710 | 4 | ||||||
| V500 Sco | 8.74 ± 0.01 | 0.71 ± 0.05 | −7.61 ± 3.37 | 32.2 ± 5.4 | 1 | 9.317 | 44789.61621 | 1 |
| β Dor | 5.25 ± 0.01 | 0.63 ± 0.06 | 8.17 ± 0.11 | 32.9 ± 2.3 | 2 | 9.84308 | 53 284.79472 | 0 |
| 9.8527371 | 41 149.27150 | 4 | ||||||
| ζ Gem | 3.89 ± 0.03 | 0.49 ± 0.03 | 6.78 ± 0.42 | 26.5 ± 1.0 | 1 | 10.149816 | 54805.78476 | 1 |
| VY Sgr | 11.46 ± 0.02 | 1.14 ± 0.05 | 14.23 ± 1.58 | 50.4 ± 4.4 | 1 | 13.55845 | 54171.32722 | 1 |
| UZ Sct | 11.25 ± 0.03 | 0.75 ± 0.05 | 39.52 ± 0.18 | 44.7 ± 3.5 | 0 | 14.744162 | 56171.62381 | 0 |
| Y Oph | 6.15 ± 0.02 | 0.49 ± 0.03 | −7.56 ± 2.01 | 16.5 ± 2.0 | 1 | 17.12633896 | 53 209.96732 | 1 |
| RY Sco | 8.02 ± 0.02 | 0.83 ± 0.03 | −17.73 ± 2.02 | 30.1 ± 3.0 | 1 | 20.321538 | 45 077.36644 | 1 |
| RZ Vel | 7.09 ± 0.04 | 1.17 ± 0.05 | 24.11 ± 4.52 | 54.6 ± 5.4 | 1 | 20.399727 | 50776.13608 | 1 |
| V340 Ara | 10.20 ± 0.06 | 1.08 ± 0.07 | −76.25 ± 4.19 | 47.7 ± 9.3 | 1 | 20.811386 | 56138.97597 | 0 |
| WZ Sgr | 8.03 ± 0.03 | 1.08 ± 0.05 | −17.78 ± 1.17 | 54.2 ± 2.9 | 1 | 21.849708 | 50691.28534 | 1 |
| RS Pup | 6.99 ± 0.03 | 1.11 ± 0.04 | 25.80 ± 1.91 | 48.5 ± 2.1 | 1 | 41.488634 | 53 092.94483 | 1 |
Notes. From left to right, the columns give the star name, the mean magnitude in visual bands, the magnitude amplitude, the mean radial velocity, the RV amplitude, the light curve source, the pulsation period and zero-phase reference epoch of mean magnitude (or mean radial velocity), and the Ephemerides source. For the variables VY Sgr, RZ Vel, and WZ Sgr, our RV measurements and those by Groenewegen (2008, and references therein) show a shift in phase of −0.05, +0.03, and −0.03, respectively. To co-phase the two data sets, the latter sample of radial velocities plotted in Fig. B.1 were shifted.
References. (a)0: ASAS-SN (Shappee et al. 2014; Kochanek et al. 2017); 1: Groenewegen (2008, and references therein); 2: Pel (1976). (b)0: period and T0 derived from our own radial velocity curves; 1: period and T0 derived from the radial velocities by Groenewegen (2008, and references therein); 2: T0 derived from the light curve; 3: T0 derived from the radial velocities by Groenewegen (2008, and references therein); 4: period and T0 derived from the light curve.
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