K-band spectroscopy of IGR J16358-4726 and IGR J16393-4643: two new symbiotic X-ray binaries

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Volume 516 (June-July 2010)

A&A, 516 (2010) A94

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Table 4:

Synoptic table reporting the main known parameters for IGR J16358-4724 and IGR J16393-4643.
Parameter	IGR J16358-4724	IGR J16393-4643
Spectral type
of the secondary	K-M III [1]	K-M III [1]
V-band magnitude	>23.67 [2]	21.53 [2]
A_V (mag)	12-13 [1]	4-6 [1]
Distance (kpc)	5-6; 12-13 [3]	$\sim$ 10 [4]
X-ray spectrum	[5]	[4]
$L_{\rm X}$ (erg s^-1)	$3 \times 10^{32}$ - $2 \times 20^{36}$ [5]	${2\times 10^{34}}$ [4,1]
$L_{\rm X} / L_{\rm secondary}$	-	-
$\dot{M}$ (g s^-1)	$1.6 \times 10^{12}$ - $1.1 \times 10^{16}$ [1]	${1.1\times10^{14}}$ [1]
$P_{\rm spin}$ (s)	5850 [6]	$\sim$ 912 [4,7]
$\dot{P}_{\rm spin} / P_{\rm spin}$ (s^-1)	3.1 $\times 10^{-8}$ [5]	1.0 $\times 10^{-11}$ ? [7,1]
$P_{{\rm orb}}$ (d)	-	50.2 ? [7,1]

Notes. The X-ray luminosity is given in the 2-10 keV band. The mass accretion rate $\dot{M}$ was estimated assuming typical parameters for a neutron star, i.e. $R_{\rm X} = 10$ km and $M_{\rm X} = 1.4$ $M_{\odot}$ .

References. [1] this work; [2] Chaty et al. (2008); [3] Lutovinov et al. (2005); [4] Bodaghee at al. (2006); [5] Patel at al. (2007); [6] Patel et al. (2004); [7] Thompson et al. (2006).

Source LaTeX | All tables | In the text

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