Table 1.
Best-fit parameters for GRO J1744–28 spectrum as observed with XMM-Newton (obsid. 0821120101) and described with an absorbed blackbody (BB), power law (PL), and accretion-heated atmosphere (ATM) models.
| Parameter/model | BB | PL | AHATM |
|---|---|---|---|
| NH, 1022 cm−2 | 7.1(5) | 13.8(5) | 8.6(4) |
| kT keV/Γ/ℓa | 1.25(4) | 2.6(1) | 0.13(1) |
| A/10−3 | 34(5) | 1.4(4) | |
| CM1 | 1.05(5) | 1.05(5) | 1.05(5) |
| CM2 | 1.03(5) | 1.03(5) | 1.03(5) |
| FX, obs,10−13 erg cm−2 s−1 | 6.4(2) | 6.8(2) | 6.6(2) |
| FX, src,10−13 erg cm−2 s−1 | 9.9(4) | 48(8) | 11.8(4) |
| χ2/d.o.f. | 86.36/86 | 63.72/86 | 73.51/86 |
Notes. The fit statistics and estimated source flux in the 0.5−10 keV energy band (observed and unabsorbed) are also listed for each model.
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