Extreme magnetic field modulus variability of the Bp star HD 57372

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Table 2

Radial velocity and magnetic field measurements.

Inst.	ϕ_rot		〈B〉	〈B〉	〈B〉	〈B_z〉	〈B_z〉
			Si II 6699	Ce III 16133	Ca II 16654	all	hydrogen
		[km s⁻¹]	[kG]	[kG]	[kG]	[kG]	[kG]
H	0.046	23.14 ± 0.74	15.33			−3.32 ± 0.09
F	0.114					−4.40 ± 0.08	−3.66 ± 0.10
F	0.114					−4.31 ± 0.08	−3.63 ± 0.09
F	0.118					−4.26 ± 0.08	−3.59 ± 0.08
A	0.121	21.71 ± 3.22		14.15	14.82
F	0.159					−3.00 ± 0.07	−2.61 ± 0.10
H	0.179	22.49 ± 1.04	14.47			−1.43 ± 0.08
F	0.185					−2.12 ± 0.14	−1.66 ± 0.18
F	0.253					−0.08 ± 0.04	−0.03 ± 0.07
F	0.253					−0.07 ± 0.04	−0.03 ± 0.07
F	0.285					0.74± 0.04	0.72±0.07
H	0.288	21.81 ± 0.55	5.72			0.64± 0.06
H	0.305	21.63 ± 0.55	5.27			0.79 ± 0.06
A	0.361	21.30 ± 2.67		5.70	5.76
F	0.367					1.72 ± 0.09	1.65 ± 0.10
A	0.375	21.64 ± 2.74		5.54	5.62
F	0.380					1.70 ± 0.04	1.65 ± 0.05
H	0.415	21.70 ± 0.46	5.23			1.43 ± 0.04
H	0.540	22.31 ± 0.76	5.54			1.43 ± 0.04
H	0.793	22.98 ± 1.33	14.92			−1.73 ± 0.06
F	0.812					−3.29 ± 0.07	−2.74 ± 0.09
H	0.923	23.51 ± 1.06	15.02			−3.22 ± 0.10
F	0.990					−6.05 ± 0.09	−5.25 ± 0.10
A	0.993	22.87 ± 2.53		15.66	15.03

Notes. The letters in the instrument column are the same as in Table 1. In the 〈B_z〉 met/all column, HARPS values pertain to 〈B_z〉 as measured from apparently unblended metal lines, while FORS2 values pertain to 〈B_z〉 as measured from the full spectra.

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