Table 2.
Estimated temperature asymmetry induced by AME from dust grains in the M 31 halo.
| Radial | Observed | Halo dust | Estimated |
|---|---|---|---|
| Region | ΔTobs | Grain size | ΔTest |
| kpc | μK | a (μm) | (10−2 μK) |
| 21.4 | 2.66 | 0.01 | 19.79 |
| 0.06 | 13.01 | ||
| 0.11 | 11.69 | ||
| 0.16 | 11.62 | ||
| 0.21 | 8.86 | ||
| 0.26 | 7.15 | ||
| 0.36 | 5.99 | ||
| 31.1 | 6.44 | 0.01 | 19.84 |
| 0.06 | 13.25 | ||
| 0.11 | 11.94 | ||
| 0.16 | 11.52 | ||
| 0.21 | 8.95 | ||
| 0.26 | 7.22 | ||
| 0.36 | 6.02 | ||
| 41.4 | 17.60 | 0.01 | 19.91 |
| 0.06 | 13.42 | ||
| 0.11 | 11.71 | ||
| 0.16 | 11.72 | ||
| 0.21 | 9.02 | ||
| 0.26 | 7.25 | ||
| 0.36 | 6.14 | ||
| 51.8 | 39.20 | 0.01 | 20.35 |
| 0.06 | 13.56 | ||
| 0.11 | 11.02 | ||
| 0.16 | 11.00 | ||
| 0.21 | 9.12 | ||
| 0.26 | 8.08 | ||
| 0.36 | 6.23 | ||
| 77.8 | 21.70 | 0.01 | 20.21 |
| 0.06 | 13.68 | ||
| 0.11 | 10.81 | ||
| 0.16 | 9.88 | ||
| 0.21 | 9.12 | ||
| 0.26 | 8.10 | ||
| 0.36 | 6.48 | ||
| 103.8 | 39.20 | 0.01 | 20.32 |
| 0.06 | 13.78 | ||
| 0.11 | 10.35 | ||
| 0.16 | 9.91 | ||
| 0.21 | 8.72 | ||
| 0.26 | 7.12 | ||
| 0.36 | 6.50 |
Notes. Estimated temperature asymmetry induced by AME from dust grains (column 4) for various grain sizes a (column 3) within the radial region (column 1). A dust temperature Td ≃ 17 K was assumed. The SMICA-observed temperature asymmetry is also given in column 2.
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