Table 2
Integrated 4−8 keV polarization degree P of the reflection component (including neutral iron lines) and polarization position angle ψ of the GC molecular clouds from the simulation with stokes.
| Molecular cloud | P (%) | ψ (°) | fR (%) | Pexp. (%) | Pdetect. (%) | ψdetect. (°) |
|
|
||||||
| Sgr B2 | 65.0 | 88.3 | 70.0 | 45.5 | 57.4±4.4 | 83.3±3.4 |
| Sgr B1 | 76.9 | 84.4 | 52.6 | 40.5 | 40.4±3.9 | 80.3±3.3 |
| G0.11-0.11 | 55.8 | 61.6 | – | – | – | – |
| Bridge E | 12.7 | 67.9 | – | – | – | – |
| Bridge D | 0.1 | 74.2 | – | – | – | – |
| Bridge B2 | 15.8 | 77.8 | – | – | – | – |
| MC2 | 25.8 | 73.8 | – | – | – | – |
| MC1 | 0.1 | 77.5 | – | – | – | – |
| Sgr C3 | 32.9 | 106.4 | 50.7 | 16.7 | 15.5±2.4 | 109.0±4.5 |
| Sgr C2 | 34.9 | 99.1 | 63.0 | 22.0 | 17.9±3.8 | 99.1±5.6 |
| Sgr C1 | 31.1 | 94.6 | 60.2 | 18.7 | 23.1±3.3 | 98.1±6.0 |
Notes. Polarization angles are defined with respect to Galactic north, with positive defined as west to north. The fraction of the total flux that is reflected fR is computed from Ryu et al. (2009, 2013), allowing us to evaluate the diluted polarization signal Pexp.. Using Monte Carlo simulations associated with the GPD instrument (see text), we finally show estimations of the polarization degree Pdetect. and angle ψdetect. that a future polarimeter would detect. The empty cells correspond to clouds with too low X-ray luminosities to be observed within 3 Ms or with unestimated fractions of the reflected flux.
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