Weak magnetic field, solid-envelope rotation, and wave-induced N-enrichment in the SPB star ζ Cassiopeiae

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Table 1

Results of a dipole fit on the longitudinal magnetic field values using the five groups of lines.

	B ₀	B	Δφ	β	B _pol
	G	G		deg	G

all	−6.23	14.32	0.027	104	104
all but He	−8.85	20.42	0.033	104	149
all but N	−5.80	13.50	0.028	104	98
He	−3.93	9.20	0.020	104	67
N	−9.44	21.69	0.034	104	158

Notes. The stellar inclination angle is fixed to 30 degrees, as deduced from our forwards LSD Stokes modelling (Sect. 4.2) and from our ZDI modelling (Sect. 4.3). The errors are of the order of 1 deg and 5 G, for β and B_pol, respectively.

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