Phenomenological modelling of soft excess and Iron emission in individual spectra.
| Telescope . | Observation . | |$\Gamma$| . | |$F_{\mathrm{BB}}$| . | |$kT_{\mathrm{BB}}$| . | |$\sigma _{\mathrm{line}}$| . | |$EW$| . | |$F_{\mathrm{line}}$| . |
|---|---|---|---|---|---|---|---|
| . | date . | (|$10^{-13}$|erg cm|$^{-2}$|s|$^{-1}$|) . | (keV) . | (eV) . | (eV) . | (|$10^{-13}$| erg cm|$^{-2}$|s|$^{-1}$|) . | |
| (1) . | (2) . | (3) . | (4) . | (5) . | (6) . | (7) . | (8) . |
| XMM–Newton | 2002-01-01 | |$1.71\pm 0.03$| | |$5.5^{+1.7}_{-1.6}$| | |$147^{+13}_{-14}$| | – | |$586_{-202}^{+298}$| | |$3.2_{-1.2}^{+0.9}$| |
| 2004-07-04 | |$1.67\pm 0.02$| | |$7.2\pm 0.8$| | 139|$_{-6}^{+5}$| | |$\lt 68$| | 116|$_{-32}^{+34}$| | |$0.9\pm 0.2$| | |
| 2020-07-04 | |$1.69\pm 0.02$| | |$7.1\pm 1.1$| | 147|$\pm 8$| | |$\lt 115$| | 140|$^{+47}_{-44}$| | |$1.0_{-0.3}^{+0.4}$| | |
| 2021-01-03 | |$1.69\pm 0.02$| | |$8.4\pm 1.2$| | 140|$_{-7}^{+6}$| | |$\lt 141$| | 152|$\pm 46$| | |$1.4_{-0.4}^{+0.4}$| | |
| 2021-08-11 | |$1.78\pm 0.02$| | |$14.1_{-2.5}^{+2.3}$| | 133|$\pm 7$| | |$\lt 75$| | 62|$_{-48}^{+44}$| | |$0.8_{-0.5}^{+1.7}$| | |
| 2022-01-24 | |$1.67\pm 0.04$| | |$2.8\pm 0.6$| | 129|$_{-13}^{+12}$| | 187|$_{-64}^{+115}$| | 496|$_{-141}^{+148}$| | |$1.4_{-0.3}^{+0.4}$| | |
| 2022-07-28 | |$1.65\pm 0.02$| | |$6.1\pm 1.0$| | 147|$\pm 8$| | |$\lt 203$| | 111|$_{-51}^{+50}$| | |$0.7_{-0.3}^{+0.5}$| | |
| 2023-02-06 | |$1.64\pm 0.02$| | |$5.1\pm 0.7$| | 141|$\pm 7$| | |$129_{-48}^{+59}$| | 241|$_{-64}^{+61}$| | |$1.2\pm 0.3$| | |
| 2024-01-25 | |$1.77\pm 0.02$| | |$12.2_{-1.5}^{+1.8}$| | |$124\pm 6$| | – | |$195_{-71}^{+106}$| | |$2.7\pm 0.9$| | |
| NuSTAR | 2016-02-05 | |$1.59_{-0.07}^{+0.08}$| | – | – | |$\lt 756$| | 216|$_{-199}^{+182}$| | |$0.8_{-0.8 }^{+0.7}$| |
| 2016-12-02 | |$1.61\pm 0.05$| | – | – | 398|$_{-192}^{+205}$| | 357|$_{-138}^{+154}$| | |$1.3_{-0.5 }^{+0.5 }$| | |
| 2018-10-27 | |$1.61\pm 0.04$| | – | – | |$\lt 434$| | |$300_{-237}^{+273}$| | |$3.4_{-2.1 }^{+1.8 }$| | |
| 2019-08-31 | |$1.66\pm 0.02$| | – | – | |$\lt 201$| | 101|$_{-32}^{+35}$| | |$1.7_{-0.5}^{+0.6}$| | |
| 2020-01-21 | |$1.67\pm 0.02$| | – | – | 377|$_{-200}^{+186}$| | 194|$_{-68}^{+61}$| | |$2.5_{-0.9}^{+1.2}$| | |
| 2021-01-10 | |$1.67\pm 0.04$| | – | – | |$\lt 360$| | 190|$_{-78}^{+82}$| | |$1.5_{-0.6}^{+0.7}$| | |
| 2021-08-18 | |$1.69\pm 0.03$| | – | – | |$\lt 488$| | 165|$\pm 64$| | |$2.8_{-1.1}^{+1.5}$| | |
| 2021-12-22 | |$1.65\pm 0.03$| | – | – | |$\lt 437$| | 186|$_{-63}^{+64}$| | |$1.2_{-0.4}^{+0.5}$| | |
| 2023-02-06 | |$1.66\pm 0.04$| | – | – | |$\lt 444$| | 215|$_{-82}^{+142}$| | |$1.2_{-0.4}^{+0.6}$| | |
| 2023-09-29 | |$1.68\pm 0.07$| | – | – | |$\lt 416$| | |$176_{-113}^{+316}$| | |$0.7_{-0.6}^{+0.7}$| | |
| 2024-01-25 | |$1.72\pm 0.02$| | – | – | – | |$79_{-39}^{+5}$| | |$1.0_{-0.3}^{+0.8}$| | |
| NICER | 2022-07-16 | – | |$3.6_{-1.9}^{+2.2}$| | |$208_{-74}^{+86}$| | – | – | – |
| 2022-07-26 | – | |$6.7_{-1.7}^{+1.8}$| | |$209_{-27}^{+24}$| | – | – | – | |
| 2022-08-15 | – | |$11.0_{-1.7}^{+1.9}$| | |$155_{-16}^{+17}$| | – | – | – | |
| 2022-08-24 | – | |$5.2_{-2.0}^{+2.1}$| | |$169_{-39}^{+43}$| | – | – | – | |
| 2022-08-25 | – | |$6.5_{-1.6}^{+1.7}$| | |$193_{-28}^{+32}$| | – | – | – | |
| 2022-09-14 | – | |$3.2_{-1.4}^{+1.1}$| | |$143_{-29}^{+28}$| | – | – | – | |
| 2022-09-25 | – | |$4.0_{-1.5}^{+1.7}$| | |$182_{-31}^{+33}$| | – | – | – | |
| 2022-10-04 | – | |$5.3_{-3.2}^{+3.2}$| | |$234_{-67}^{+59}$| | – | – | – | |
| 2022-10-24 | – | |$4.1_{-1.7}^{+1.9}$| | |$200_{-35}^{+32}$| | – | – | – | |
| 2022-11-12 | – | |$1.5_{-1.0}^{+1.3}$| | |$139_{-44}^{+69}$| | – | – | – | |
| 2022-12-03 | – | |$2.2_{-1.6}^{+2.0}$| | |$216_{-68}^{+61}$| | – | – | – | |
| 2023-01-08 | – | |$\lt 2.1$| | – | – | – | – |
| Telescope . | Observation . | |$\Gamma$| . | |$F_{\mathrm{BB}}$| . | |$kT_{\mathrm{BB}}$| . | |$\sigma _{\mathrm{line}}$| . | |$EW$| . | |$F_{\mathrm{line}}$| . |
|---|---|---|---|---|---|---|---|
| . | date . | (|$10^{-13}$|erg cm|$^{-2}$|s|$^{-1}$|) . | (keV) . | (eV) . | (eV) . | (|$10^{-13}$| erg cm|$^{-2}$|s|$^{-1}$|) . | |
| (1) . | (2) . | (3) . | (4) . | (5) . | (6) . | (7) . | (8) . |
| XMM–Newton | 2002-01-01 | |$1.71\pm 0.03$| | |$5.5^{+1.7}_{-1.6}$| | |$147^{+13}_{-14}$| | – | |$586_{-202}^{+298}$| | |$3.2_{-1.2}^{+0.9}$| |
| 2004-07-04 | |$1.67\pm 0.02$| | |$7.2\pm 0.8$| | 139|$_{-6}^{+5}$| | |$\lt 68$| | 116|$_{-32}^{+34}$| | |$0.9\pm 0.2$| | |
| 2020-07-04 | |$1.69\pm 0.02$| | |$7.1\pm 1.1$| | 147|$\pm 8$| | |$\lt 115$| | 140|$^{+47}_{-44}$| | |$1.0_{-0.3}^{+0.4}$| | |
| 2021-01-03 | |$1.69\pm 0.02$| | |$8.4\pm 1.2$| | 140|$_{-7}^{+6}$| | |$\lt 141$| | 152|$\pm 46$| | |$1.4_{-0.4}^{+0.4}$| | |
| 2021-08-11 | |$1.78\pm 0.02$| | |$14.1_{-2.5}^{+2.3}$| | 133|$\pm 7$| | |$\lt 75$| | 62|$_{-48}^{+44}$| | |$0.8_{-0.5}^{+1.7}$| | |
| 2022-01-24 | |$1.67\pm 0.04$| | |$2.8\pm 0.6$| | 129|$_{-13}^{+12}$| | 187|$_{-64}^{+115}$| | 496|$_{-141}^{+148}$| | |$1.4_{-0.3}^{+0.4}$| | |
| 2022-07-28 | |$1.65\pm 0.02$| | |$6.1\pm 1.0$| | 147|$\pm 8$| | |$\lt 203$| | 111|$_{-51}^{+50}$| | |$0.7_{-0.3}^{+0.5}$| | |
| 2023-02-06 | |$1.64\pm 0.02$| | |$5.1\pm 0.7$| | 141|$\pm 7$| | |$129_{-48}^{+59}$| | 241|$_{-64}^{+61}$| | |$1.2\pm 0.3$| | |
| 2024-01-25 | |$1.77\pm 0.02$| | |$12.2_{-1.5}^{+1.8}$| | |$124\pm 6$| | – | |$195_{-71}^{+106}$| | |$2.7\pm 0.9$| | |
| NuSTAR | 2016-02-05 | |$1.59_{-0.07}^{+0.08}$| | – | – | |$\lt 756$| | 216|$_{-199}^{+182}$| | |$0.8_{-0.8 }^{+0.7}$| |
| 2016-12-02 | |$1.61\pm 0.05$| | – | – | 398|$_{-192}^{+205}$| | 357|$_{-138}^{+154}$| | |$1.3_{-0.5 }^{+0.5 }$| | |
| 2018-10-27 | |$1.61\pm 0.04$| | – | – | |$\lt 434$| | |$300_{-237}^{+273}$| | |$3.4_{-2.1 }^{+1.8 }$| | |
| 2019-08-31 | |$1.66\pm 0.02$| | – | – | |$\lt 201$| | 101|$_{-32}^{+35}$| | |$1.7_{-0.5}^{+0.6}$| | |
| 2020-01-21 | |$1.67\pm 0.02$| | – | – | 377|$_{-200}^{+186}$| | 194|$_{-68}^{+61}$| | |$2.5_{-0.9}^{+1.2}$| | |
| 2021-01-10 | |$1.67\pm 0.04$| | – | – | |$\lt 360$| | 190|$_{-78}^{+82}$| | |$1.5_{-0.6}^{+0.7}$| | |
| 2021-08-18 | |$1.69\pm 0.03$| | – | – | |$\lt 488$| | 165|$\pm 64$| | |$2.8_{-1.1}^{+1.5}$| | |
| 2021-12-22 | |$1.65\pm 0.03$| | – | – | |$\lt 437$| | 186|$_{-63}^{+64}$| | |$1.2_{-0.4}^{+0.5}$| | |
| 2023-02-06 | |$1.66\pm 0.04$| | – | – | |$\lt 444$| | 215|$_{-82}^{+142}$| | |$1.2_{-0.4}^{+0.6}$| | |
| 2023-09-29 | |$1.68\pm 0.07$| | – | – | |$\lt 416$| | |$176_{-113}^{+316}$| | |$0.7_{-0.6}^{+0.7}$| | |
| 2024-01-25 | |$1.72\pm 0.02$| | – | – | – | |$79_{-39}^{+5}$| | |$1.0_{-0.3}^{+0.8}$| | |
| NICER | 2022-07-16 | – | |$3.6_{-1.9}^{+2.2}$| | |$208_{-74}^{+86}$| | – | – | – |
| 2022-07-26 | – | |$6.7_{-1.7}^{+1.8}$| | |$209_{-27}^{+24}$| | – | – | – | |
| 2022-08-15 | – | |$11.0_{-1.7}^{+1.9}$| | |$155_{-16}^{+17}$| | – | – | – | |
| 2022-08-24 | – | |$5.2_{-2.0}^{+2.1}$| | |$169_{-39}^{+43}$| | – | – | – | |
| 2022-08-25 | – | |$6.5_{-1.6}^{+1.7}$| | |$193_{-28}^{+32}$| | – | – | – | |
| 2022-09-14 | – | |$3.2_{-1.4}^{+1.1}$| | |$143_{-29}^{+28}$| | – | – | – | |
| 2022-09-25 | – | |$4.0_{-1.5}^{+1.7}$| | |$182_{-31}^{+33}$| | – | – | – | |
| 2022-10-04 | – | |$5.3_{-3.2}^{+3.2}$| | |$234_{-67}^{+59}$| | – | – | – | |
| 2022-10-24 | – | |$4.1_{-1.7}^{+1.9}$| | |$200_{-35}^{+32}$| | – | – | – | |
| 2022-11-12 | – | |$1.5_{-1.0}^{+1.3}$| | |$139_{-44}^{+69}$| | – | – | – | |
| 2022-12-03 | – | |$2.2_{-1.6}^{+2.0}$| | |$216_{-68}^{+61}$| | – | – | – | |
| 2023-01-08 | – | |$\lt 2.1$| | – | – | – | – |
Note. Here, we list best-fitting parameters for the phenomenological model tbabs*(powerlaw + zgauss + zbbody) (Section 3.2). All parameter uncertainties are quoted at the 90th percentile confidence interval. (1) Telescope name. (2) Date of observation start, YYYY-MM-DD. (3) Continuum photon index. As the model is fitted to the full instrumental energy range, the spectral slope may vary systematically between instruments, even if it is not time-variant. We find that NICER cannot robustly recover |$\Gamma$| for these short individual exposures (Section 3.2) (4) Integrated flux of the blackbody component; this is only included for XMM–Newton and NICER spectra. (5) Temperature of the blackbody component. (6) Line width of the 6.4 keV Gaussian emission component. Most of these are upper limits at the 90 per cent confidence interval; the nominal energy resolutions near the Fe K line are 400 eV for NuSTAR and 150 eV for XMM–Newton pn. Thus, the emission lines are largely unresolved. (7) Equivalent width of the Gaussian component. (8) Integrated flux of the Gaussian component.
Phenomenological modelling of soft excess and Iron emission in individual spectra.
| Telescope . | Observation . | |$\Gamma$| . | |$F_{\mathrm{BB}}$| . | |$kT_{\mathrm{BB}}$| . | |$\sigma _{\mathrm{line}}$| . | |$EW$| . | |$F_{\mathrm{line}}$| . |
|---|---|---|---|---|---|---|---|
| . | date . | (|$10^{-13}$|erg cm|$^{-2}$|s|$^{-1}$|) . | (keV) . | (eV) . | (eV) . | (|$10^{-13}$| erg cm|$^{-2}$|s|$^{-1}$|) . | |
| (1) . | (2) . | (3) . | (4) . | (5) . | (6) . | (7) . | (8) . |
| XMM–Newton | 2002-01-01 | |$1.71\pm 0.03$| | |$5.5^{+1.7}_{-1.6}$| | |$147^{+13}_{-14}$| | – | |$586_{-202}^{+298}$| | |$3.2_{-1.2}^{+0.9}$| |
| 2004-07-04 | |$1.67\pm 0.02$| | |$7.2\pm 0.8$| | 139|$_{-6}^{+5}$| | |$\lt 68$| | 116|$_{-32}^{+34}$| | |$0.9\pm 0.2$| | |
| 2020-07-04 | |$1.69\pm 0.02$| | |$7.1\pm 1.1$| | 147|$\pm 8$| | |$\lt 115$| | 140|$^{+47}_{-44}$| | |$1.0_{-0.3}^{+0.4}$| | |
| 2021-01-03 | |$1.69\pm 0.02$| | |$8.4\pm 1.2$| | 140|$_{-7}^{+6}$| | |$\lt 141$| | 152|$\pm 46$| | |$1.4_{-0.4}^{+0.4}$| | |
| 2021-08-11 | |$1.78\pm 0.02$| | |$14.1_{-2.5}^{+2.3}$| | 133|$\pm 7$| | |$\lt 75$| | 62|$_{-48}^{+44}$| | |$0.8_{-0.5}^{+1.7}$| | |
| 2022-01-24 | |$1.67\pm 0.04$| | |$2.8\pm 0.6$| | 129|$_{-13}^{+12}$| | 187|$_{-64}^{+115}$| | 496|$_{-141}^{+148}$| | |$1.4_{-0.3}^{+0.4}$| | |
| 2022-07-28 | |$1.65\pm 0.02$| | |$6.1\pm 1.0$| | 147|$\pm 8$| | |$\lt 203$| | 111|$_{-51}^{+50}$| | |$0.7_{-0.3}^{+0.5}$| | |
| 2023-02-06 | |$1.64\pm 0.02$| | |$5.1\pm 0.7$| | 141|$\pm 7$| | |$129_{-48}^{+59}$| | 241|$_{-64}^{+61}$| | |$1.2\pm 0.3$| | |
| 2024-01-25 | |$1.77\pm 0.02$| | |$12.2_{-1.5}^{+1.8}$| | |$124\pm 6$| | – | |$195_{-71}^{+106}$| | |$2.7\pm 0.9$| | |
| NuSTAR | 2016-02-05 | |$1.59_{-0.07}^{+0.08}$| | – | – | |$\lt 756$| | 216|$_{-199}^{+182}$| | |$0.8_{-0.8 }^{+0.7}$| |
| 2016-12-02 | |$1.61\pm 0.05$| | – | – | 398|$_{-192}^{+205}$| | 357|$_{-138}^{+154}$| | |$1.3_{-0.5 }^{+0.5 }$| | |
| 2018-10-27 | |$1.61\pm 0.04$| | – | – | |$\lt 434$| | |$300_{-237}^{+273}$| | |$3.4_{-2.1 }^{+1.8 }$| | |
| 2019-08-31 | |$1.66\pm 0.02$| | – | – | |$\lt 201$| | 101|$_{-32}^{+35}$| | |$1.7_{-0.5}^{+0.6}$| | |
| 2020-01-21 | |$1.67\pm 0.02$| | – | – | 377|$_{-200}^{+186}$| | 194|$_{-68}^{+61}$| | |$2.5_{-0.9}^{+1.2}$| | |
| 2021-01-10 | |$1.67\pm 0.04$| | – | – | |$\lt 360$| | 190|$_{-78}^{+82}$| | |$1.5_{-0.6}^{+0.7}$| | |
| 2021-08-18 | |$1.69\pm 0.03$| | – | – | |$\lt 488$| | 165|$\pm 64$| | |$2.8_{-1.1}^{+1.5}$| | |
| 2021-12-22 | |$1.65\pm 0.03$| | – | – | |$\lt 437$| | 186|$_{-63}^{+64}$| | |$1.2_{-0.4}^{+0.5}$| | |
| 2023-02-06 | |$1.66\pm 0.04$| | – | – | |$\lt 444$| | 215|$_{-82}^{+142}$| | |$1.2_{-0.4}^{+0.6}$| | |
| 2023-09-29 | |$1.68\pm 0.07$| | – | – | |$\lt 416$| | |$176_{-113}^{+316}$| | |$0.7_{-0.6}^{+0.7}$| | |
| 2024-01-25 | |$1.72\pm 0.02$| | – | – | – | |$79_{-39}^{+5}$| | |$1.0_{-0.3}^{+0.8}$| | |
| NICER | 2022-07-16 | – | |$3.6_{-1.9}^{+2.2}$| | |$208_{-74}^{+86}$| | – | – | – |
| 2022-07-26 | – | |$6.7_{-1.7}^{+1.8}$| | |$209_{-27}^{+24}$| | – | – | – | |
| 2022-08-15 | – | |$11.0_{-1.7}^{+1.9}$| | |$155_{-16}^{+17}$| | – | – | – | |
| 2022-08-24 | – | |$5.2_{-2.0}^{+2.1}$| | |$169_{-39}^{+43}$| | – | – | – | |
| 2022-08-25 | – | |$6.5_{-1.6}^{+1.7}$| | |$193_{-28}^{+32}$| | – | – | – | |
| 2022-09-14 | – | |$3.2_{-1.4}^{+1.1}$| | |$143_{-29}^{+28}$| | – | – | – | |
| 2022-09-25 | – | |$4.0_{-1.5}^{+1.7}$| | |$182_{-31}^{+33}$| | – | – | – | |
| 2022-10-04 | – | |$5.3_{-3.2}^{+3.2}$| | |$234_{-67}^{+59}$| | – | – | – | |
| 2022-10-24 | – | |$4.1_{-1.7}^{+1.9}$| | |$200_{-35}^{+32}$| | – | – | – | |
| 2022-11-12 | – | |$1.5_{-1.0}^{+1.3}$| | |$139_{-44}^{+69}$| | – | – | – | |
| 2022-12-03 | – | |$2.2_{-1.6}^{+2.0}$| | |$216_{-68}^{+61}$| | – | – | – | |
| 2023-01-08 | – | |$\lt 2.1$| | – | – | – | – |
| Telescope . | Observation . | |$\Gamma$| . | |$F_{\mathrm{BB}}$| . | |$kT_{\mathrm{BB}}$| . | |$\sigma _{\mathrm{line}}$| . | |$EW$| . | |$F_{\mathrm{line}}$| . |
|---|---|---|---|---|---|---|---|
| . | date . | (|$10^{-13}$|erg cm|$^{-2}$|s|$^{-1}$|) . | (keV) . | (eV) . | (eV) . | (|$10^{-13}$| erg cm|$^{-2}$|s|$^{-1}$|) . | |
| (1) . | (2) . | (3) . | (4) . | (5) . | (6) . | (7) . | (8) . |
| XMM–Newton | 2002-01-01 | |$1.71\pm 0.03$| | |$5.5^{+1.7}_{-1.6}$| | |$147^{+13}_{-14}$| | – | |$586_{-202}^{+298}$| | |$3.2_{-1.2}^{+0.9}$| |
| 2004-07-04 | |$1.67\pm 0.02$| | |$7.2\pm 0.8$| | 139|$_{-6}^{+5}$| | |$\lt 68$| | 116|$_{-32}^{+34}$| | |$0.9\pm 0.2$| | |
| 2020-07-04 | |$1.69\pm 0.02$| | |$7.1\pm 1.1$| | 147|$\pm 8$| | |$\lt 115$| | 140|$^{+47}_{-44}$| | |$1.0_{-0.3}^{+0.4}$| | |
| 2021-01-03 | |$1.69\pm 0.02$| | |$8.4\pm 1.2$| | 140|$_{-7}^{+6}$| | |$\lt 141$| | 152|$\pm 46$| | |$1.4_{-0.4}^{+0.4}$| | |
| 2021-08-11 | |$1.78\pm 0.02$| | |$14.1_{-2.5}^{+2.3}$| | 133|$\pm 7$| | |$\lt 75$| | 62|$_{-48}^{+44}$| | |$0.8_{-0.5}^{+1.7}$| | |
| 2022-01-24 | |$1.67\pm 0.04$| | |$2.8\pm 0.6$| | 129|$_{-13}^{+12}$| | 187|$_{-64}^{+115}$| | 496|$_{-141}^{+148}$| | |$1.4_{-0.3}^{+0.4}$| | |
| 2022-07-28 | |$1.65\pm 0.02$| | |$6.1\pm 1.0$| | 147|$\pm 8$| | |$\lt 203$| | 111|$_{-51}^{+50}$| | |$0.7_{-0.3}^{+0.5}$| | |
| 2023-02-06 | |$1.64\pm 0.02$| | |$5.1\pm 0.7$| | 141|$\pm 7$| | |$129_{-48}^{+59}$| | 241|$_{-64}^{+61}$| | |$1.2\pm 0.3$| | |
| 2024-01-25 | |$1.77\pm 0.02$| | |$12.2_{-1.5}^{+1.8}$| | |$124\pm 6$| | – | |$195_{-71}^{+106}$| | |$2.7\pm 0.9$| | |
| NuSTAR | 2016-02-05 | |$1.59_{-0.07}^{+0.08}$| | – | – | |$\lt 756$| | 216|$_{-199}^{+182}$| | |$0.8_{-0.8 }^{+0.7}$| |
| 2016-12-02 | |$1.61\pm 0.05$| | – | – | 398|$_{-192}^{+205}$| | 357|$_{-138}^{+154}$| | |$1.3_{-0.5 }^{+0.5 }$| | |
| 2018-10-27 | |$1.61\pm 0.04$| | – | – | |$\lt 434$| | |$300_{-237}^{+273}$| | |$3.4_{-2.1 }^{+1.8 }$| | |
| 2019-08-31 | |$1.66\pm 0.02$| | – | – | |$\lt 201$| | 101|$_{-32}^{+35}$| | |$1.7_{-0.5}^{+0.6}$| | |
| 2020-01-21 | |$1.67\pm 0.02$| | – | – | 377|$_{-200}^{+186}$| | 194|$_{-68}^{+61}$| | |$2.5_{-0.9}^{+1.2}$| | |
| 2021-01-10 | |$1.67\pm 0.04$| | – | – | |$\lt 360$| | 190|$_{-78}^{+82}$| | |$1.5_{-0.6}^{+0.7}$| | |
| 2021-08-18 | |$1.69\pm 0.03$| | – | – | |$\lt 488$| | 165|$\pm 64$| | |$2.8_{-1.1}^{+1.5}$| | |
| 2021-12-22 | |$1.65\pm 0.03$| | – | – | |$\lt 437$| | 186|$_{-63}^{+64}$| | |$1.2_{-0.4}^{+0.5}$| | |
| 2023-02-06 | |$1.66\pm 0.04$| | – | – | |$\lt 444$| | 215|$_{-82}^{+142}$| | |$1.2_{-0.4}^{+0.6}$| | |
| 2023-09-29 | |$1.68\pm 0.07$| | – | – | |$\lt 416$| | |$176_{-113}^{+316}$| | |$0.7_{-0.6}^{+0.7}$| | |
| 2024-01-25 | |$1.72\pm 0.02$| | – | – | – | |$79_{-39}^{+5}$| | |$1.0_{-0.3}^{+0.8}$| | |
| NICER | 2022-07-16 | – | |$3.6_{-1.9}^{+2.2}$| | |$208_{-74}^{+86}$| | – | – | – |
| 2022-07-26 | – | |$6.7_{-1.7}^{+1.8}$| | |$209_{-27}^{+24}$| | – | – | – | |
| 2022-08-15 | – | |$11.0_{-1.7}^{+1.9}$| | |$155_{-16}^{+17}$| | – | – | – | |
| 2022-08-24 | – | |$5.2_{-2.0}^{+2.1}$| | |$169_{-39}^{+43}$| | – | – | – | |
| 2022-08-25 | – | |$6.5_{-1.6}^{+1.7}$| | |$193_{-28}^{+32}$| | – | – | – | |
| 2022-09-14 | – | |$3.2_{-1.4}^{+1.1}$| | |$143_{-29}^{+28}$| | – | – | – | |
| 2022-09-25 | – | |$4.0_{-1.5}^{+1.7}$| | |$182_{-31}^{+33}$| | – | – | – | |
| 2022-10-04 | – | |$5.3_{-3.2}^{+3.2}$| | |$234_{-67}^{+59}$| | – | – | – | |
| 2022-10-24 | – | |$4.1_{-1.7}^{+1.9}$| | |$200_{-35}^{+32}$| | – | – | – | |
| 2022-11-12 | – | |$1.5_{-1.0}^{+1.3}$| | |$139_{-44}^{+69}$| | – | – | – | |
| 2022-12-03 | – | |$2.2_{-1.6}^{+2.0}$| | |$216_{-68}^{+61}$| | – | – | – | |
| 2023-01-08 | – | |$\lt 2.1$| | – | – | – | – |
Note. Here, we list best-fitting parameters for the phenomenological model tbabs*(powerlaw + zgauss + zbbody) (Section 3.2). All parameter uncertainties are quoted at the 90th percentile confidence interval. (1) Telescope name. (2) Date of observation start, YYYY-MM-DD. (3) Continuum photon index. As the model is fitted to the full instrumental energy range, the spectral slope may vary systematically between instruments, even if it is not time-variant. We find that NICER cannot robustly recover |$\Gamma$| for these short individual exposures (Section 3.2) (4) Integrated flux of the blackbody component; this is only included for XMM–Newton and NICER spectra. (5) Temperature of the blackbody component. (6) Line width of the 6.4 keV Gaussian emission component. Most of these are upper limits at the 90 per cent confidence interval; the nominal energy resolutions near the Fe K line are 400 eV for NuSTAR and 150 eV for XMM–Newton pn. Thus, the emission lines are largely unresolved. (7) Equivalent width of the Gaussian component. (8) Integrated flux of the Gaussian component.
This PDF is available to Subscribers Only
View Article Abstract & Purchase OptionsFor full access to this pdf, sign in to an existing account, or purchase an annual subscription.
