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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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