Table 1
Spectroscopic observations and measured radial velocities of the central star of PRTM 1.
| MJD = JD-2 400 000.5 | Exposure | S/N | Radial velocity |
| (s) | (λ = 5100 Å) | (km s-1) | |
|
|
|||
| 55 845.199 | 540 | 50 | −11.8 |
| 55 856.281 | 1200 | 85 | −13.1 |
| 55 857.354 | 1200 | 140 | −4.2 |
| 55 858.218 | 1200 | 95 | −9.5 |
| 55 875.158 | 1200 | 75 | 2.1 |
| 55 877.131 | 1500 | 90 | −10.1 |
| 55 879.254 | 1350 | 105 | −5.0 |
| 55 880.136 | 1500 | 110 | −14.9 |
| 55 882.175 | 1200 | 110 | −0.2 |
| 55 901.531 | 1200 | 110 | 2.8 |
| 55 903.279 | 1500 | 95 | 6.0 |
| 55 905.270 | 1200 | 110 | 0.3 |
| 55 906.063 | 1050 | 130 | −6.1 |
| 55 920.147 | 900 | 50 | 3.2 |
| 55 929.124 | 900 | 130 | 2.5 |
Notes. The table shows, respectively, the modified julian date (MJD) at the midpoint of each observation, the exposure time, the attained signal-to-noise ratio, and the measured radial velocity (see text). We estimate a typical error of 3 km s-1 on the latter.
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