Table 1: Radial velocity parameters of Cen X-4.
Template star Spectral type $\gamma$ K₂ ${\chi^2}_{\rm red}$

(km s^-1) (km s^-1)

HR 5536 K3 III $203.6\pm 2.1$ $147.7\pm 1.0$ 1.8

HD 184467 K2 V $191.2\pm 2.1$ $147.6\pm 0.9$ 1.9

HD 29697 K3 V $209 \pm 10$ $146.1\pm 1.0$ 1.2

HD 154712A K4 V $194.2\pm 2.1$ $146.2\pm 0.8$ 1.7

61 Cyg A K5 V $196.4\pm 1.0$ $146.4\pm 0.8$ 1.9

61 Cyg B K7 V $196.0\pm 1.1$ $145.8\pm 1.0$ 1.1

**Table 1:** Radial velocity parameters of Cen X-4.
Template star	Spectral type	$\gamma$	K₂	${\chi^2}_{\rm red}$
		(km s^-1)	(km s^-1)
HR 5536	K3 III	$203.6\pm 2.1$	$147.7\pm 1.0$	1.8
HD 184467	K2 V	$191.2\pm 2.1$	$147.6\pm 0.9$	1.9
HD 29697	K3 V	$209 \pm 10$	$146.1\pm 1.0$	1.2
HD 154712A	K4 V	$194.2\pm 2.1$	$146.2\pm 0.8$	1.7
61 Cyg A	K5 V	$196.4\pm 1.0$	$146.4\pm 0.8$	1.9
61 Cyg B	K7 V	$196.0\pm 1.1$	$145.8\pm 1.0$	1.1

Source LaTeX | All tables | In the text

	1 Introduction
	2 Cen X-4
	3 Observational data and reduction
	4 Cen X-4 properties
	5 Doppler tomography
	6 Conclusions
	References