Table 8

Results of spectral fitting experiments using physically motivated models.

Parameter Atm CS CS + Atm
Nh (1020 cm−2)
D (pc) 288 (a) 240 ± 12
Γ 1.98 (a) 1.98 (a) 1.98 (a)
KΓ (10−5) 3.32 ± 0.17
Eedge (keV) 0.252 ± 0.002 0.268 ± 0.003
τedge 0.07 ± 0.02 0.17 ± 0.02
ELine (keV)
σLine (keV) 0.075 ± 0.005
τLine 0.038 ± 0.003
Tp (MK) 0.355 ± 0.005 1.047 ± 0.007
Bp (1013 G) 1 (a) 10.6 (a)
γB 80° ± 2° 90° ± 0°
aT 0.25 (a) 0.25 (a)
Tsp (MK) 1.53 ± 0.01
Bsp (1013 G) 10.6
Rsp (km)
1.34 1.40 1.26

Notes. The values of the temperatures and the magnetic field strengths are given in the neutron star rest-frame, as well as the spot radius Rsp. The basic parameters of the neutron star are M = 1.4 M and R = 12 km for all the models. (a)Fixed parameter.

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