Table 3: Cen X-4 spectral classification by direct fitting.
Template Spectral type f ${\chi^2}_{\nu}$

(117 d.o.f.)

HR 5536 K3 III $0.49\pm0.01$ 2.29

HR 6159 K4 III $0.44\pm0.01$ 2.40

HR 5622 K5 III $0.53\pm0.01$ 2.30

HD 184467 K7 III $0.84\pm0.05$ 1.30

HD 29697 K3 V $0.62\pm0.04$ 1.29

HD 154712A K4 V $0.65\pm0.04$ 1.32

61 Cyg A K5 V $0.63\pm0.04$ 1.30

61 Cyg B K7 V $0.59\pm0.04$ 1.39

**Table 3:** Cen X-4 spectral classification by direct fitting.
Template	Spectral type	f	${\chi^2}_{\nu}$
			(117 d.o.f.)
HR 5536	K3 III	$0.49\pm0.01$	2.29
HR 6159	K4 III	$0.44\pm0.01$	2.40
HR 5622	K5 III	$0.53\pm0.01$	2.30
HD 184467	K7 III	$0.84\pm0.05$	1.30
HD 29697	K3 V	$0.62\pm0.04$	1.29
HD 154712A	K4 V	$0.65\pm0.04$	1.32
61 Cyg A	K5 V	$0.63\pm0.04$	1.30
61 Cyg B	K7 V	$0.59\pm0.04$	1.39

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