Unveiling the nature of INTEGRAL objects through optical spectroscopy - VII. Identification of 20 Galactic and extragalactic hard X-ray sources

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Volume 495 / No 1 (February III 2009)

A&A, 495 1 (2009) 121-135

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Table 3:

Synoptic table containing the main results concerning the 4 X-ray binaries (see Fig. 4) identified or observed in the present sample of *INTEGRAL* sources.
Object	H $_\alpha$		H $_\beta$		He II $\lambda$ 4686		Optical	A_V	d	Spectral	$L_{\rm X}$
	EW	Flux	EW	Flux	EW	Flux	mag.	(mag)	(kpc)	type
IGR J11435-6109	25.8 $\pm$ 1.3	39 $\pm$ 2	3.5 $\pm$ 1.1	2.2 $\pm$ 0.7	<2.2	<1.2	16.43 $^{\rm a}$ (V)	5.7	$\sim$ 8.6	B2 III	2.5 (0.16-3.5)
										or B0 V	8.2 (0.3-10)
											16 (20-100)
1ES 1210-646	in abs.	in abs.	in abs.	in abs.	2.8 $\pm$ 0.3	21 $\pm$ 2	13.9 (R)	3.3	$\sim$ 2.8	B5 V	1.9 (0.16-3.5)
											64 (1-8)
											12 (2-10)
											1.0 (20-100)
IGR J17404-3655	14.2 $\pm$ 0.14	2.5 $\pm$ 0.3	<9	<0.9	<6	<0.6	17.3 (R)	3.1	$\sim$ 9.1	--	12 (2-10)
											13 (20-100)
IGR J21347+4737	8.1 $\pm$ 0.6	5.1 $\pm$ 0.4	1.2 $\pm$ 0.2	1.2 $\pm$ 0.2	1.6 $\pm$ 0.4	1.7 $\pm$ 0.4	14.2 (R)	2.2	$\sim$ 5.8	B3 V	0.08 (0.5-8)
											6.0 (20-100)

Note: EWs are expressed in Å, line fluxes are in units of 10^-15 erg cm^-2 s^-1, whereas X-ray luminosities are in units of 10³⁴ erg s^-1 and the reference band (between brackets) is expressed in keV.
$^{\rm a}$ From Negueruela et al. (2007).

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