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Home All issues Volume 505 / No 2 (October II 2009) A&A, 505 2 (2009) 589-600 Full HTML
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Table 3:

Left column: parameters for the RGS and Chandra/ACIS thermal model best fits.
Parameter RGS ACIS
Thermal components
$N_{{\rm H},1}$ (1020 cm-2) <0.4 <1.2
kT1 (eV) $301 \pm 7$ $400 \pm 130$
N1a $6.9 \pm^{1.0}_{0.6}$ $1.3 \pm^{1.5}_{1.1}$
$N_{{\rm H},2}$ (1020 cm-2) $34 \pm^3_2$ <100
kT2 (eV) $690 \pm^{20}_{30}$ $650 \pm^{120}_{50}$
N2a $8.6 \pm^{0.3}_{0.9}$ $1.8 \pm^{0.3}_{0.7}$
Elemental abundances with respect to solar
$Z_{\rm C}$ $0.031 \pm^{0.012}_{0.010} $ <1.08
$Z_{\rm N}$ $0.072 \pm^{0.017}_{0.011} $ <0.15
$Z_{\rm O}$ $0.0123 \pm^{0.0022}_{0.0013} $ $0.031 \pm^{0.030}_{0.015}$
$Z_{{\rm Ne}}$ $0.030 \pm^{0.003}_{0.004} $ $0.11 \pm^{0.03}_{0.04}$
$Z_{{\rm Mg}}$ $0.083 \pm^{0.012}_{0.011} $ $0.14 \pm 0.03$
$Z_{{\rm Si}}$ $0.083 \pm^{0.012}_{0.011} $ $0.15 \pm^{0.05}_{0.06}$
$Z_{{\rm Fe}}$ $0.023 \pm 0.002 $ $0.043 \pm ^{0.011}_{0.005}$
Blackbody
kT (eV) $364 \pm 2$ ...
Nb $3.1 \pm^{0.8}_{0.2}$ ...
a In units of $\frac{10^{-17}}{4 \pi [D_{\rm A} (1+z)^2]} \int n_{\rm e} n_{\rm H} {\rm d}V$, where $D_{\rm A}$ is the angular size of the source and $n_{\rm e}$ and $n_{\rm H}$ are the electron and H densities, respectively. b In units of 10 $^{-4} \frac{L_{39}}{D^2_{10}}$, where L39 is the source luminosity in units of 1039 erg s-1 and D10 is the distance to the source in units of 10 kpc.

Source LaTeX | All tables | In the text

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