Table 2
Journal of the TIGRE observations of π Aqr.
| HJD | Exp. time | −EW(Hα) | RV(Hα, in km s−1) | # | ||
|---|---|---|---|---|---|---|
| –2 458 000. | (s) | (Å) | M1 | Mirror | 2G | |
| 230.766 | 709 | 21.96 | –5.3 | –4.5 | –4.0 | 2 |
| 242.755 | 872 | 21.81 | –8.2 | –8.1 | –7.0 | |
| 255.734 | 875 | 21.79 | –12.2 | –14.2 | –13.4 | 5 |
| 266.721 | 686 | 22.16 | –16.5 | –19.8 | –19.2 | 7 |
| 274.717 | 717 | 22.62 | –15.5 | –20.2 | –20.0 | 8 |
| 301.669 | 1100 | 22.16 | –8.3 | –8.0 | –8.9 | |
| 309.686 | 1420 | 21.93 | –6.6 | –4.6 | –5.7 | 13 |
| 319.597 | 909 | 22.25 | –8.1 | –6.0 | –7.7 | 14 |
| 325.630 | 906 | 22.71 | –9.5 | –7.5 | –8.9 | 16–7 |
| 333.622 | 1865 | 22.64 | –13.9 | –12.9 | –13.6 | 18 |
| 347.635 | 898 | 23.27 | –17.6 | –17.7 | –17.7 | 20 |
| 355.554 | 698 | 23.94 | –18.4 | –18.6 | –18.3 | 20 |
| 366.490 | 747 | 23.66 | –17.4 | –18.0 | –17.5 | 22 |
| 366.546 | 849 | 23.37 | –17.7 | –17.6 | –17.2 | 22 |
| 382.571 | 1343 | 23.76 | –7.8 | –6.8 | –6.2 | 24 |
| 391.467 | 1664 | 24.06 | –6.8 | –4.9 | –4.9 | 26–7 |
| 400.479 | 757 | 24.91 | –6.1 | –4.1 | –4.2 | 28 |
| 446.320 | 704 | 24.37 | –14.0 | –18.2 | –17.6 | 36 |
| 458.293 | 796 | 24.23 | –7.7 | –12.0 | –11.3 | 39 |
| 470.321 | 635 | 24.73 | –2.8 | –5.5 | –4.9 | 39 |
| 479.313 | 940 | 24.57 | –1.9 | –3.8 | –3.6 | |
Notes. EW and M1 correspond to zeroth- and first-order moments (see Sect. 3) evaluated between −540 and +540 km s−1, “mirror” indicates results from the mirror method for determining the radial velocity, and “2G” those from the two-Gaussian correlation method (see Sect. 3.1 for details). A rest wavelength of 6562.85 Å was used for the Hα line. The last column lists the end of the Swift ObsID used to correlate X-ray and optical data (see Sect. 4.2 for details).
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