Table 1
HARPSpol observations of HD 92207.
HJD | S/N | S/N | ⟨ Bz ⟩ | ⟨ Nz ⟩ | FAP |
–2 450 000 | (/px) | (LSD) | (G) | (G) | (V) |
6345.6732 | 300 | 5629 | 0.2 ± 13.4 | 2.0 ± 13.4 | 0.897 |
6347.6720 | 440 | 8222 | −19.1 ± 9.5 | 18.9 ± 9.5 | 0.020 |
6348.6735 | 390 | 7299 | 11.8 ± 10.7 | −21.4 ± 10.7 | 0.402 |
6350.6660 | 420 | 7893 | −1.8 ± 10.1 | −13.8 ± 10.1 | 0.147 |
Notes. Columns give the heliocentric Julian date of observations, the peak S/N per pixel of Stokes V spectra, the S/N achieved in the LSD profiles, and the estimates of the mean longitudinal magnetic field derived from Stokes V and diagnostic null LSD profiles. The final column gives the false alarm probability that the structure in the mean circular polarisation profile can be attributed to random noise. Marginal detection corresponds to FAP < 10-3.
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