Table 1: Amplitudes (in km s^-1) of the frequencies $f_{\rm rot}\in [0.22;0.28]$ c d^-1, f₁ = 4.99922 c d^-1 and 2f₁ for the EW ( top); amplitudes (in km s^-1) of f₁, f₂, f₃ and 2f₁ for $\langle v\rangle$ ( bottom) of the Si III 4552.654 Å ( left) and Si III 4567.872 Å ( right) line of $\kappa~$ Sco, calculated from the original observed spectra and from the disentangled spectra. The last column denotes the total variance reduction (f.v.) derived from the least-squares fits to the data with the considered frequencies.
4552.654 Å 4567.872 Å

Original Disentangled Original Disentangled

EW EW

Frequency ampl $\pm$ s.e. f.v. ampl $\pm$ s.e. f.v. ampl $\pm$ s.e. f.v. ampl $\pm$ s.e. f.v.

$f_{\rm rot}$ 0.30 $\pm$ 0.03 0.29 $\pm$ 0.03 0.61 $\pm$ 0.02 0.35 $\pm$ 0.02

f₁ 0.10 $\pm$ 0.03 0.15 $\pm$ 0.02 0.07 $\pm$ 0.02 0.11 $\pm$ 0.02

2f₁ 0.11 $\pm$ 0.03 16% 0.10 $\pm$ 0.02 23% 0.05 $\pm$ 0.03 54% 0.04 $\pm$ 0.02 47%

$\langle v\rangle$ $\langle v\rangle$

Frequency ampl $\pm$ s. e. f. v. ampl $\pm$ s. e. f. v. ampl $\pm$ s. e. f. v. ampl $\pm$ s. e. f. v.

f₁ 2.13 $\pm$ 0.11 2.24 $\pm$ 0.10 2.06 $\pm$ 0.12 2.21 $\pm$ 0.10

f₂ 0.55 $\pm$ 0.10 0.87 $\pm$ 0.09 0.59 $\pm$ 0.12 0.95 $\pm$ 0.09

f₃ 0.32 $\pm$ 0.10 0.56 $\pm$ 0.09 0.15 $\pm$ 0.12 0.41 $\pm$ 0.09

2f₁ 0.24 $\pm$ 0.10 44% 0.52 $\pm$ 0.09 55% 0.35 $\pm$ 0.12 35% 0.60 $\pm$ 0.09 55%

**Table 1:** Amplitudes (in km s^-1) of the frequencies $f_{\rm rot}\in [0.22;0.28]$ c d^-1, f₁ = 4.99922 c d^-1 and 2f₁ for the EW ( *top*); amplitudes (in km s^-1) of f₁, f₂, f₃ and 2f₁ for $\langle v\rangle$ ( *bottom*) of the Si III 4552.654 Å ( *left*) and Si III 4567.872 Å ( *right*) line of $\kappa~$ Sco, calculated from the original observed spectra and from the disentangled spectra. The last column denotes the total variance reduction (f.v.) derived from the least-squares fits to the data with the considered frequencies.
	4552.654 Å	4567.872 Å
	Original	Disentangled	Original	Disentangled
	EW	EW
Frequency	ampl $\pm$ s.e.	f.v.	ampl $\pm$ s.e.	f.v.	ampl $\pm$ s.e.	f.v.	ampl $\pm$ s.e.	f.v.
$f_{\rm rot}$	0.30 $\pm$ 0.03		0.29 $\pm$ 0.03		0.61 $\pm$ 0.02		0.35 $\pm$ 0.02
f₁	0.10 $\pm$ 0.03		0.15 $\pm$ 0.02		0.07 $\pm$ 0.02		0.11 $\pm$ 0.02
2f₁	0.11 $\pm$ 0.03	16%	0.10 $\pm$ 0.02	23%	0.05 $\pm$ 0.03	54%	0.04 $\pm$ 0.02	47%
	$\langle v\rangle$	$\langle v\rangle$
Frequency	ampl $\pm$ s. e.	f. v.	ampl $\pm$ s. e.	f. v.	ampl $\pm$ s. e.	f. v.	ampl $\pm$ s. e.	f. v.
f₁	2.13 $\pm$ 0.11		2.24 $\pm$ 0.10		2.06 $\pm$ 0.12		2.21 $\pm$ 0.10
f₂	0.55 $\pm$ 0.10		0.87 $\pm$ 0.09		0.59 $\pm$ 0.12		0.95 $\pm$ 0.09
f₃	0.32 $\pm$ 0.10		0.56 $\pm$ 0.09		0.15 $\pm$ 0.12		0.41 $\pm$ 0.09
2f₁	0.24 $\pm$ 0.10	44%	0.52 $\pm$ 0.09	55%	0.35 $\pm$ 0.12	35%	0.60 $\pm$ 0.09	55%

Source LaTeX | All tables | In the text

	1 Introduction
	2 Physical parameters of the system
	3 Disentangled versus non-disentangled spectra
	4 Frequency analysis
	5 Interpretation of the line-profile variability
	6 Summary and discussion
	References