Table 3.
Best-fit results of GRO J1750-27 NICER-only spectral analysis using a cutoff power-law model cutoffpl with an iron Kα line.
| ObsID | NH | Γ | HighEcut | norm Γ ( * ) | Flux ( † ) | χ2/d.o.f. | EKα | σKα | normKα ( ⋆ ) | |
|---|---|---|---|---|---|---|---|---|---|---|
| [1022 cm−2] | [keV] | [keV] | [keV] | |||||||
| 4202350101 | 4.8(2) | 0.06(12) |
 |
1.6(2) | 0.593(9) | 1078/944 | – | – | – | |
| 4202350104 | 5.2(1) | 0.01(12) |
 |
2.8(2) | 1.11(2) | 1035/942 | 6.53(8) | 0.16(6) | 0.05(2) | |
| 4202350105 | 5.4(2) | 0.1(2) |
 |
3.4(4) | 1.14(2) | 1097/935 | 6.59(9) | 0.21(8) | 0.1(3) | |
| 4202350106 | 5.3(1) | 0.03(8) |
 |
3.4(2) | 1.24(1) | 1138/942 | 6.56(4) | 0.20(4) | 0.11(2) | |
| 4202350107 | 5.3(1) | 0.03(8) |
 |
3.8(2) | 1.31(1) | 1066/942 | 6.53(4) | 0.14(4) | 0.08(2) | |
| 4202350108 | 5.3(1) | −0.05(10) |
 |
3.7(2) | 1.39(1) | 1070/942 | 6.61(8) | 0.20(7) | 0.09(2) | |
| 4202350109 | 6.1(4) | 0.6(2) | 33(unc.) | 6.3(6) | 1.55(7) | 1006/887 | 6.33(3) | 0.1 (unc.) | 0.04(3) | |
| 4202350110 | 5.7(5) | 0.3(3) |
 |
4.7(9) | 1.49(7) | 1136/877 | 6.47(7) | 0.4(1) | 0.3(1) | |
| 4202350111 | 5.5(2) | −0.01(12) |
 |
4.7(4) | 1.58(2) | 1036/919 | 6.56(9) | 0.19(8) | 0.09(3) | |
| 4202350112 | 5.2(2) | −0.17(12) |
 |
3.8(3) | 1.45(2) | 992/942 | 6.6(1) | 0.3(1) | 0.098(4) | |
| 4202350113 | 5.3(2) | −0.06(12) |
 |
3.8(3) | 1.40(2) | 1133/941 | 6.4(1) | 0.01(1) | 0.04(1) | |
| 4202350114 | 5.4(1) | 0.08(9) |
 |
4.3(3) | 1.46(2) | 1093/942 | 6.50(4) | 0.17(4) | 0.10(2) | |
| 4202350115 | 5.0(1) | −0.17(9) |
 |
3.9(3) | 1.48(1) | 1045/942 | 6.52(6) | 0.23(6) | 0.12(3) | |
| 4202350116 | 5.3(1) | −0.22(9) |
 |
3.3(3) | 1.23(1) | 1076/942 | 6.62(6) | 0.23(6) | 0.09(2) | |
| 4202350117 | 5.4(1) | 0.08(9) |
 |
4.2(3) | 1.44(1) | 987/942 | 6.51(5) | 0.15(5) | 0.09(2) | |
| 4202350118 | 5.5(1) | 0.13(9) |
 |
3.7(3) | 1.22(2) | 1027/942 | 6.45(6) | 0.16(8) | 0.08(2) | |
| 4202350119 | 5.4(1) | 0.06(11) |
 |
3.5(3) | 1.18(2) | 926/932 | 6.56(9) | 0.17(9) | 0.05(2) | |
| 4202350120 | 5.7(2) | 0.17(14) |
 |
3.8(4) | 1.13(2) | 1055/892 | 6.52(6) | 0.02(9) | 0.03(2) | |
| 4202350121 | 5.7(1) | 0.40(9) |
 |
3.9(3) | 1.18(1) | 945/932 | 6.64(8) | 0.29(9) | 0.10(2) |
Notes. All reported errors are at 1σ c.l., obtained using the err tool from XSPEC. ( * )In units of 10−2 photons keV−1 cm2 s−1 at 1 keV. ( † )Unabsorbed flux calculated for the entire model in the 0.5 − 10 keV energy band and reported in units of 10−9 erg cm−2 s−1. ( ⋆ )In units of 10−2 photons cm−2 s−1. (unc.)Unconstrained value.
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