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Table 4

Journal of observations of WD 2047+372.

Instrument MJD Exp. ⟨ Bz ⟩ ⟨ | B | ⟩
(s) (kG) (kG)
ISIS 57 266.082 3360 0.61 ± 0.24
E 1844823 57 326.255 3256 6.00 ± 1.67 57.4 ± 2.5
E 1939267 57 549.554 4416 −10.79 ± 1.37 59.8 ± 2.5
E 1939614 57 551.601 4416 16.11 ± 2.77 61.3 ± 3.0
MSS 57 551.942 3600 2.20 ± 2.00
MSS 57 551.984 3660 −2.80 ± 2.00
MSS 57 552.901 3660 −9.70 ± 1.80
MSS 57 552.944 3660 −7.60 ± 2.30
E 1940930 57 558.609 4416 −1.82 ± 1.13 55.3 ± 2.5
E 1941326 57 560.511 4416 −11.69 ± 1.72 59.5 ± 2.5
E 1941535 57 561.500 4416 −9.30 ± 1.26 60.5 ± 2.5
E 1941724 57 562.451 3400 −9.57 ± 1.60 59.5 ± 2.5
E 1941744 57 562.611 3400 8.97 ± 1.59 57.4 ± 2.5
E 1974328 57 603.483 3360 3.25 ± 1.31 58.9 ± 2.5
E 1974340 57 603.577 3360 −6.46 ± 1.55 63.0 ± 2.5
E 1974958 57 606.380 3360 6.89 ± 1.46 60.4 ± 2.5
E 1974982 57 606.553 3360 13.44 ± 2.03 61.9 ± 2.5
E 1975651 57 609.499 3360 14.66 ± 1.51 60.2 ± 2.5
E 1976104 57 611.406 3360 6.16 ± 1.23 57.9 ± 2.5
E 1976387 57 612.556 3360 −10.97 ± 1.38 61.5 ± 2.5
E 1976638 57 613.487 3360 −8.65 ± 1.23 64.4 ± 2.5
E 1977043 57 615.441 3360 −10.32 ± 1.34 58.8 ± 2.5

Notes. Column 1 gives the instrument used (ESPaDOnS spectra are identified by the letter E followed by the identification number); Col. 2 gives the Modified Julian Date at mid-exposure, Col. 3 the exposure time, Col. 4 the measured longitudinal field ⟨ Bz ⟩ with its uncertainty, and Col. 5 the mean field modulus ⟨ | B | ⟩ and its estimated uncertainty.

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