Table 2
Best fit parameters obtained by fitting the eFEDS e12 spectrum with different models.
| SPECTRUM e12 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Shift | Shift | |||||||
| LHB-CGM-CXB | LHB-CGM-Coro-CXB | LHB-CGM-Coro-CXB | LHB-CGM-Coro2-CXB | |||||
| SWCX | SWCX | SWCX | SWCX | |||||
| NLHB | 5.4 ± 0.5 | 5.7 ± 0.4 | 3.7 ± 0.4 | 4.0 ± 0.4 | 3.4 ± 0.5 | 3.6 ± 0.5 | 3.2 ± 0.5 | 3 4±0 6 |
| NCXB | 0.300 ± 0.002 | 0.292 ± 0.003 | 0.276 ± 0.003 | 0.274 ± 0.003 | 0.275 ± 0.003 | 0.273 ± 0.003 | 0.270 ± 0.003 | 0 268 ± 0 003 |
| kTCGM | 0.190 ± 0.005 | 0.240 ± 0.006 | 0.166 ± 0.003 | 0.191 ± 0.006 | 0.162 ± 0.003 | 0.181 ± 0.005 | 0.157 ± 0.004 | 0 173 ± 0 005 |
| ZCGM | 0.085 ± 0.007 | 0.12 ± 0.02 | 0.069 ± 0.005 | 0.064 ± 0.007 | 0.067 ± 0.004 | 0.061 ± 0.005 | 0.068 ± 0.004 | 0 058 ± 0 006 |
| NCGM | 27 ± 4 | 11 ± 1 | 46 ± 4 | 26 ± 4 | 49 ± 4 | 29 ± 4 | 51 ± 5 | 31 ± 4 |
| kTCoro | 0.70 ± 0.03 | 0.75 ± 0.03 | 0.69 ± 0.03 | 0.71 ± 0.03 | 0.49 ± 0.09 | 0 47 ± 0 09 | ||
| τ |  |
 |
||||||
| NCoro | 0.37 ± 0.02 | 0.36 ± 0.02 | 0.37 ± 0.02 | 0.37 ± 0.02 | 0 9±0 2 | 0.9 ± 0.2 | ||
| χ2 | 1129.8 | 1097.9 | 954.5 | 990.3 | 926.8 | 959.8 | 911.0 | 944.6 |
| d.o.f. | 815 | 815 | 813 | 813 | 808 | 808 | 807 | 807 |
Notes. LHB, CGM, CXB, Coro, Coro2, SWCX, and shift stand for the local hot bubble, circumgalactic medium, coronal emission in and out of thermal equilibrium, solar wind charge exchange, and shift of the energy scales, respectively. Each column shows the best fit parameters obtained for each model. Each adjacent pair of columns shows the best fit results with the same model, under the assumption of either negligible (left) or high SWCX (right) contribution. NLHB, NCGM, and NCoro show the normalizations of the local hot bubble, circumgalactic medium, and coronal components, respectively, in units of 10−3 pc cm−6. NCXB shows the normalization of the CXB component in units of photons keV−1 cm−2 s−1 at 1 keV. kTCGM and kTCoro show the temperatures of the circumgalactic medium and coronal components in keV. τ shows the ionization timescales of the coronal plasma in units of 1010 s cm−3.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.