Table 1
Results of spectral analysis of Ser X-1 from previous studies.
| Instrument | Continuum model | Reflection model | Line model | Line energy (keV) | Equivalent width | Rin (Rg) | Incl (deg) | Emissivity index log (ξ) | Flux (erg/cm2/s) | Reference | |
|
|
|||||||||||
| ASCA | bbody+cutpowerlaw | – | Gaussian | 6.6 ± 0.17 | 81 eV | – | – | – | – | Ref. (1) | |
|
|
|||||||||||
| RXTE | bbody | pexrav | Gaussian | – | – | – | – | – | – | Ref. (2) | |
| BeppoSAX | bbody+compTT | – | Gaussian | 6.46  |
275  eV |
– | – | – | – | Ref. (2) | |
|
|
|||||||||||
| XMM-Newton | diskbb+compTT | – | laor | 6.40  |
86−105 eV | 4−16 | 40−50 | – | 2−10 keV: (3.3-4.2) × 10-9 | Ref. (3) | |
|
|
|||||||||||
| suzaku | bbody+diskbb+powerlaw | – | diskline | 6.83  |
132 ± 12 eV | 7.7 ± 0.5 | 26 ± 2 | – | 0.5-10 keV: (5.9 ± 0.9) × 10-9a | Ref. (4) | |
|
|
|||||||||||
| suzaku | bbody+diskbb+powerlaw | – | diskline | 6.97  |
98 eV | 8.0 ± 0.3 | 24 ± 1 | – | 0.5−25 keV: (1.19 ± 0.01) × 10-8 | Ref. (5) | |
| suzaku | bbody+diskbb+powerlaw | reflionx | – | – | – | 6 ± 1 | 16 ± 1 | 2.6 ± 0.1 | 0.5−25 keV: (1.32 ± 0.08) × 10-8 | Ref. (5) | |
| XMM-Newton | bbody+diskbb+powerlaw | – | diskline | 6.66−6.97 | 38−50 eV | 14−26 | 13−32 | – | 0.5−25 keV: (0.6−0.7) × 10-8 | Ref. (5) | |
| XMM-Newton | bbody+diskbb+powerlaw | reflionx | – | – | – | 15–107 | 3–9 | 2.6–2.8 | 0.5−25 keV: (0.6-0.7) × 10-8 | Ref (5) | |
|
|
|||||||||||
| NuSTAR | bbody+diskbb+powerlaw | – | kerrdisk | 6.97 ± 0.01 | 91 ± 2 eV | 10.6 ± 0.6 | 18 ± 2 | – | 0.5−40 keV: 1.5 × 10-8 | Ref. (6) | |
| NuSTAR | bbody+diskbb+powerlaw | reflionx | – | – | – | 6−8.3 | <10 | 2.30–2.60 | – | Ref. (6) | |
|
|
|||||||||||
| Chandra | bbody+diskbb+powerlaw | – | diskline | 6.97 ± 0.02 | 149 ± 15 eV | 7.7 ± 0.1 | 24 ± 1 | – | – | Ref (7) | |
| Chandra | bbody+diskbb+powerlaw | reflionx | – | – | – | 7.1 |
29 ± 1 | 2.5 |
– | Ref. (7) | |
| Chandra | bbody+diskbb+powerlaw | xillver | – | – | – | 8.4 |
33 ± 1 | 2.2 |
– | Ref. (7) | |
|
|
|||||||||||
| suzaku | bbody+diskbb+powerlaw | – | Guussian | 6.4 |
192 |
– | – | – | – | Ref. (8) | |
| suzaku | bbody+diskbb+powerlaw | – | diskline | 6.97-0.02 | 147 |
8.4 |
22 ± 1 | – | – | Ref. (8) | |
| suzaku | bbody+diskbb+powerlaw | bbrefl | – | – | – | 6.7 |
9 |
3.05 |
0.5−25 keV: (1.1 ± 0.06) × 10-8 | Ref. (8) | |
Notes.
Reference. Ref. (1): Church & Balucińska-Church (2001) – Ref. (2): Oosterbroek et al. (2001)− Ref. (3): Bhattacharyya & Strohmayer (2007)− Ref. (4): Cackett et al. (2008)− Ref. (5): Cackett et al. (2010)− Ref. (6): Miller et al. (2013)− Ref. (7): Chiang et al. (2016a)− Ref. (8): Chiang et al. (2016b).
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