EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 529 (May 2011) A&A, 529 (2011) A155 Full HTML
Free Access

Table 2

Best-fit parameters for the models described in Sect. 3. All errors are given at 90% confidence level.

data set (OP) 1846 2592 2699 2739-41 7786-87 8959-60
wabs*(CompTB+CompTB)a
NH (1021 cm-2)
NH (tbabs) (1021   cm-2)b
disk   kTs (keV) 0.48 ± 0.01 0.44 ± 0.02 0.47 ± 0.01 0.48 ± 0.01 0.49 ± 0.01 0.48 ± 0.01
NS   kTs (keV) 2.15 ± 0.11
kTe (keV) 19.2 ± 0.8
α 0.98 ± 0.03 0.94 ± 0.03 0.95 ± 0.03 0.95 ± 0.02 0.98 ± 0.02
LECS const.c 0.811 ± 0.012 0.850 ± 0.013 0.827 ± 0.008 0.877 ± 0.007
HPGSPC const.d 1.045 ± 0.017 1.042 ± 0.018 1.040 ± 0.015 1.087 ± 0.012 1.149 ± 0.012
PDS const.e 0.890 ± 0.018
τf 3.4 3.9 3.9 3.9 3.8 4.0
14,0.3 14,0.3 15,0.3 14,0.2 14,0.3 15,0.5
CA F    f 3.8,2.6 3.9,2.8 3.8,2.5 3.8,2.4 3.8,2.5 3.6,2.5
total fluxg (FTOT) 1.922 1.927 1.956 1.967 2.250 2.349
F (disk)h 1.377   (72%) 1.384   (72%) 1.438   (74%) 1.436   (73%) 1.631   (72%) 1.611   (69%)
F (NS) 0.545   (28%) 0.543   (28%) 0.518   (26%) 0.531   (27%) 0.619   (28%) 0.738   (31%)
Luminosityi (1037   erg   s-1) 1.13 1.13 1.15 1.15 1.32 1.38
red.   χ2 (d.o.f.) 1.035 (359) 0.943 (352) 1.143 (352) 1.093 (348) 1.101 (350) 1.100 (335)
wabs*(CompTT+CompTT)
NH (1021 cm-2) 0.84 ± 0.13 0.75 ± 0.12
disk   kTs (keV) 0.57 ± 0.01 0.53 ± 0.02 0.56 ± 0.01 0.56 ± 0.01 0.58 ± 0.01 0.58 ± 0.01
NS   kTs (keV) [1.8] [1.8] [1.8] [1.8] 1.82 ± 0.12
kTe (keV)
τj
LECS const. 0.848 ± 0.013 0.811 ± 0.012 0.847 ± 0.013 0.826 ± 0.008 0.877 ± 0.007
HPGSPC const. 1.049 ± 0.016 1.025 ± 0.014 1.102 ± 0.011 1.153 ± 0.012
PDS const. 0.882 ± 0.026 0.910 ± 0.018 0.997 ± 0.021
F TOT 1.892 1.925 1.922 1.917 2.204 2.336
F (disk) 1.497   (79%) 1.443   (75%) 1.582   (82%) 1.603   (84%) 1.822   (83%) 1.714   (73%)
F (NS) 0.395   (21%) 0.482   (25%) 0.340   (18%) 0.314   (16%) 0.382   (17%) 0.622   (27%)
red.   χ2 (d.o.f.) 1.042 (360) 0.933 (352) 1.166 (353) 1.121 (349) 1.166 (351) 1.106 (335)
wabs*(bb+CompTT)
NH (1021 cm-2) 1.36 ± 0.13 1.35 ± 0.1
Rbb   (km)k 6.8 ± 0.2 7.8 ± 0.3 7.2 ± 0.3 7.0 ± 0.2 7.7 ± 0.2
disk   kTbb (keV) 0.57 ± 0.01 0.53 ± 0.02 0.56 ± 0.01 0.56 ± 0.01 0.58 ± 0.01 0.58 ± 0.01
NS   kTs (keV) 1.40 ± 0.08 1.25 ± 0.07 1.41 ± 0.07 1.37 ± 0.05
kTe (keV) 18.8 ± 1.1
τ    j
LECS const. 0.848 ± 0.012 0.812 ± 0.012 0.847 ± 0.013 0.827 ± 0.008 0.877 ± 0.007
HPGSPC const. 1.053 ± 0.017 1.057 ± 0.015 1.031 ± 0.015 1.102 ± 0.012 1.162 ± 0.011
PDS const. 0.974 ± 0.027 0.975 ± 0.027 0.912 ± 0.018
F TOT 1.879 1.915 1.916 1.914 2.206 2.331
F (comptt  disk) 1.636   (87%) 1.696   (88%) 1.681   (88%) 1.688   (88%) 1.929   (87%) 2.043   (88%)
F (NS blackbody) 0.243   (13%) 0.219   (12%) 0.235   (12%) 0.226   (12%) 0.277   (13%) 0.288   (12%)
red.   χ2 (d.o.f.) 1.084 (359) 0.945 (352) 1.223 (352) 1.163 (348) 1.242 (350) 1.181 (335)

Notes. 

(a)

The values of the comptb  parameters δ, log A and γ are kept frozen to 0, 8 and 4, respectively (see Sect. 3).

(b)

NH value determined by the tbabs absorber (see Sect. 3).

(c)

LECS/MECS normalisation ratio (see Sect. 2).

(d)

HPGSPC/MECS normalisation ratio.

(e)

PDS/MECS normalisation ratio.

(f)

Derived parameter (see Sect. 3). Spherical geometry assumed for τ calculation; CAFs and Rbb are given for the disk and the NS populations, respectively.

(g)

All fluxes in 10-9 erg cm-2 s-1, 0.1–200 keV, unabsorbed (the absorbed flux is always ≲1% of FTOT).

(h)

Percentage with respect to FTOT is also given.

(i)

Unabsorbed, 0.1–200 keV, assumed distance of 7 kpc.

(j)

Assumed spherical geometry.

(k)

For an assumed distance of 7 kpc.

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.