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Table 1.
Summary of the best-fit results for the different models.
| Name | Profile | Parameters | χ2 | d.o.f. | χ2/d.o.f. | Notes |
|---|---|---|---|---|---|---|
| Spherical β | Eq. (5) | β = 0.26 ± 0.01 | 59 277 | 31 418 | 1.89 | Diverging intensity (β < 1/3); |
| C = (10.9 ± 0.6)×10−3 ( † ) | poor fit at low |b| | |||||
| Disk-like | Eq. (6) | n0 = (1.7 ± 0.1)×10−2 cm−3 | 52 028 | 31 417 | 1.66 | Good fit of the intensity; |
| Rh = 8.0 ± 0.3 kpc | underestimates NOVII | |||||
| zh = 3.3 ± 0.1 kpc | ||||||
| Combined (β ≡ 0.3) | Eqs. (5) and (6) | β ≡ 0.3 | 52 028 | 31 416 | 1.66 | ∼Flat β model is suppressed |
| C = (0.9 ± 1.0)×10−3 | ||||||
| n0 = (1.7 ± 0.1)×10−2 cm−3 | ||||||
| Rh = 8.0 ± 0.4 kpc | ||||||
| zh = 3.3 ± 0.2 kpc | ||||||
| Combined (β ≡ 0.5) | β ≡ 0.5 | 51 805 | 31 416 | 1.65 | Rh≃MW stellar disk radius | |
| C=(4.6 ± 0.1)×10−2 | ||||||
| n0=(3.2 ± 0.4)×10−2cm−3 | ||||||
| Rh = 6.2 ± 0.4kpc | ||||||
| zh = 1.1 ± 0.1kpc | ||||||
| Combined (β ≡ 0.7) | β ≡ 0.7 | 51 794 | 31 416 | 1.65 | Large central density of | |
| C = (17.6 ± 0.4)×10−2 | the spherical halo | |||||
| n0 = (1.6 ± 0.2)×10−2 cm−3 | ||||||
| Rh = 9.9 ± 0.9 kpc | ||||||
| zh = 1.6 ± 0.1 kpc | ||||||
| Combined+swcx | β ≡ 0.5 | 51 448 | 31 416 | 1.64 | Including SWCX model, | |
| C = (3.2 ± 0.1)×10−2 | kT = 0.178 keV | |||||
| n0 = (6.3 ± 0.8)×10−2 cm−3 | ||||||
| Rh = 3.9 ± 0.2 kpc | ||||||
| zh = 0.9 ± 0.1 kpc | ||||||
| Combined+20%instr | β ≡ 0.5 | 51 836 | 31 416 | 1.65 | +20% INST (or CXB) intensity | |
| C = (4.3 ± 0.1)×10−2 | ||||||
| n0 = (5.5 ± 0.6)×10−2 cm−3 | ||||||
| Rh = 4.6 ± 0.3 kpc | ||||||
| zh = 0.9 ± 0.1 kpc | ||||||
| Combined+highϵ | β ≡ 0.5 | 51 803 | 31 416 | 1.65 | Z = 0.3 Z⊙, kT = 0.225 keV | |
| C = (1.36 ± 0.03)×10−2 | ||||||
| n0 = (9.4 ± 0.9)×10−3 cm−3 | ||||||
| Rh = 6.2 ± 0.4 kpc | ||||||
| zh = 1.1 ± 0.1 kpc | ||||||
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