Table 4: Parameters of the oblique pulsator model of HR 3831 determined from the variation of the Nd III 6145.07 Å line profile moments. This table reports stellar inclination i, angles $\delta$ and $\chi$ specifying orientation of the pulsation axis, and amplitudes (renormalised to yield the maximum surface velocity) of different spherical harmonic contributions to the pulsation velocity field.
Parameter Value

i ( $^\circ$ ) 68.2 (fixed)

$\delta$ ( $^\circ$ ) $88.5\pm0.6$

$\chi$ ( $^\circ$ ) $167.1\pm0.5$

$A(\ell=1,m=0)$ (km s^-1) $3.33\pm0.03$

$A(\ell=1,m=\pm1)$ (km s^-1) $0.51\pm0.02$

$A(\ell=3,m=0)$ (km s^-1) $2.90\pm0.11$

**Table 4:** Parameters of the oblique pulsator model of HR 3831 determined from the variation of the Nd III 6145.07 Å line profile moments. This table reports stellar inclination i, angles $\delta$ and $\chi$ specifying orientation of the pulsation axis, and amplitudes (renormalised to yield the maximum surface velocity) of different spherical harmonic contributions to the pulsation velocity field.
Parameter	Value
i ( $^\circ$ )	68.2 (fixed)
$\delta$ ( $^\circ$ )	$88.5\pm0.6$
$\chi$ ( $^\circ$ )	$167.1\pm0.5$
$A(\ell=1,m=0)$ (km s^-1)	$3.33\pm0.03$
$A(\ell=1,m=\pm1)$ (km s^-1)	$0.51\pm0.02$
$A(\ell=3,m=0)$ (km s^-1)	$2.90\pm0.11$

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