An XMM-Newton view of the dipping low-mass X-ray binary XTE J1710-281

Home

All issues

Volume 502 / No 3 (August II 2009)

A&A, 502 3 (2009) 905-912

Full HTML

Free Access

Table 2:

Best fit spectral parameters for the persistent, the shallow-dipping, and the deep-dipping spectra fit simultaneously with the ionized absorber model.
Parameter	Per. emission		Shallow dip		Deep dip
$N_{\rm H}^{\rm fore} ~(10^{22}$ cm^-2)	$0.410 \pm 0.007$		$0.420 \pm 0.009$		$0.45 \pm 0.03$
Significance		1.4 $\sigma$		1.7 $\sigma$
Photon index			$1.98 \pm 0.01$
Norm. (photons keV^-1 cm^-2 s^-1)			$0.0124 \pm 0.0002$
$\log(\xi)$ (erg s^-1 cm)	5.0 Frozen		$\rm 2.52_{-0.07}^{+0.05}$		$2.29 \pm 0.02$
Significance				5 $\sigma$
$N_{\rm H}^{\xi} ~(10^{22}$ cm^-2)	0.32 Frozen		$\rm 4.3_{-0.5}^{+0.4}$		$\rm 11.6_{-0.6}^{+0.4}$
Significance				>10 $\sigma$
Reduced $\chi^{2} = 1.42$ for 765 d.o.f.

Note:: The photon index and the normalization of the power law are linked between persistent, shallow and deep dipping. $N_{\rm H}^{\rm fore}$ is the foreground neutral hydrogen column density. $\xi$ is the ionization parameter. $N_{\rm H}^{\xi}$ is the warm absorber hydrogen column density. These parameters are allowed to vary to explain the spectral changes from persistent to deep dipping. Uncertainties are given at a 90% confidence level. We also indicate the significance of the change of $N_{\rm H}^{\rm fore}$ between the three spectra as well as the significance of the change of $\log(\xi)$ and $N_{\rm H}^{\xi}$ between shallow and deep-dipping spectra.

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.