Table 1:
Spectral model fits to the
emission spectrum of SAX J1747.0-2853 in the energy range 0.2-10.5 keV.
Model names follow the same notation as in XSPEC v.11. All quoted errors
refer to deviations at 90% confidence.
is the Wisconsin
absorption parameter. For fits with comptonization model, the plasma
temperature and optical depth are largely unconstrained and therefore are
not reported (see text for more details).
Parameters description and units:
,
Wisconsin absorption parameter in units of
1022 cm-2;
,
photon index of power law component;
kT0, temperature of the comptonized soft seed photons, in keV;
,
temperature of the blackbody component, in keV;
,
normalization expressed as r2/d2,
where r is the blackbody radius in km and d is the distance to the source
in units of 10 kpc;
,
where
is the
disk inclination angle and
is the disk inner radius in km,
for a source at 10 kpc;
,
centroid energy of Gaussian line profile, in keV.
Model |
 |
Parameter values and errors |
[d.o.f.] |
|
(1022 cm-2) |
|
|
BB+Diskbb+Gaussian |
 |
,
,
,
, |
1.08 [110] |
|
|
 |
|
BB+Powerlaw+Gaussian |
 |
,
,
,
 |
1.05 [110] |
Diskbb+Powerlaw+Gaussian |
 |
,
,
,
 |
1.03 [110] |
BB+Comptt+Gaussian |
 |
,
,
,
 |
1.03 [108] |
Diskbb+Comptt+Gaussian |
 |
,
,
,
 |
1.05 [108] |
Source LaTeX |
All tables |
In the text