Table 1
Temperature excess in the M 31 regions for the non foreground-reduced WMAP maps.
| R, deg, kpc | Region | N, pix | W, Tm ± σ | V, Tm ± σ | Q, Tm ± σ |
|
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| 1.65, 21.4 | N1 + M1 + S1 | 324 | 63.1 ± 5.6 | 67.2 ± 5.4 | 90.0 ± 4.2 |
| N2 + M2 + S2 | 321 | 20.3 ± 4.7 | 17.3 ± 4.3 | 37.0 ± 3.3 | |
| N1 + S1 | 205 | 45.5 ± 5.7 | 38.0 ± 5.3 | 64.1 ± 4.0 | |
| N2 + S2 | 205 | 33.8 ± 5.9 | 34.3 ± 5.3 | 41.8 ± 4.1 | |
| M1 | 119 | 121.4 ± 19.6 | 117.6 ± 10.0 | 134.3 ± 7.4 | |
| M2 | 116 | −7.7 ± 7.4 | −12.7 ± 6.8 | 28.4 ± 5.5 | |
|
|
|||||
| 2.40, 31.1 | N1 + M1 + S1 | 670 | 43.7 ± 3.6 | 43.5 ± 3.4 | 66.0 ± 2.8 |
| N2 + M2 + S2 | 664 | 21.0 ± 3.6 | 19.1 ± 3.3 | 35.6 ± 2.7 | |
| N1 + S1 | 506 | 41.0 ± 3.5 | 32.2 ± 3.1 | 55.6 ± 2.6 | |
| N2 + S2 | 504 | 24.5 ± 4.3 | 23.6 ± 3.9 | 34.8 ± 3.3 | |
| M1 | 164 | 73.0 ± 9.4 | 78.3 ± 9.3 | 98.2 ± 7.4 | |
| M2 | 160 | 11.2 ± 6.3 | 5.8 ± 6.4 | 38.1 ± 4.8 | |
|
|
|||||
| 3.20, 41.5 | N1 + M1 + S1 | 1176 | 36.5 ± 2.7 | 38.9 ± 2.4 | 59.6 ± 2.1 |
| N2 + M2 + S2 | 1166 | 16.0 ± 2.7 | 11.3 ± 2.5 | 30.3 ± 2.2 | |
| N1 + S1 | 980 | 35.3 ± 2.7 | 34.0 ± 2.3 | 53.9 ± 2.1 | |
| N2 + S2 | 976 | 16.4 ± 3.0 | 11.5 ± 2.8 | 27.7 ± 2.4 | |
| M1 | 196 | 63.8 ± 8.4 | 63.2 ± 8.3 | 88.1 ± 6.6 | |
| M2 | 190 | 12.5 ± 5.8 | 10.3 ± 5.8 | 44.0 ± 4.4 | |
|
|
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| 4.00, 51.9 | N1 + M1 + S1 | 1818 | 37.4 ± 2.2 | 39.6 ± 2.0 | 56.7 ± 1.7 |
| N2 + M2 + S2 | 1808 | 1.7 ± 2.3 | −2.4 ± 2.1 | 16.9 ± 1.9 | |
| N1 + S1 | 1610 | 36.8 ± 2.2 | 36.9 ± 1.9 | 53.3 ± 1.7 | |
| N2 + S2 | 1609 | − 0.4 ± 2.5 | − 3.8 ± 2.2 | 13.5 ± 1.9 | |
| M1 | 208 | 64.7.0 ± 8.1 | 60.8 ± 7.9 | 83.6 ± 6.4 | |
| M2 | 200 | 12.5 ± 5.6 | 9.4 ± 5.6 | 43.6 ± 4.3 | |
|
|
|||||
| 6.00, 77.8 | N1 + S1 | 3748 | 29.7 ± 1.5 | 27.0 ± 1.4 | 44.0 ± 1.2 |
| N2 + S2 | 3749 | 11.3 ± 1.7 | 7.1 ± 1.5 | 25.8 ± 1.3 | |
|
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| 8.00, 103.8 | N1 + S1 | 6606 | 34.3 ± 1.2 | 34.7 ± 1.1 | 51.5 ± 4.0 |
| N2 + S2 | 6600 | 19.2 ± 1.3 | 15.0 ± 1.2 | 38.7 ± 1.0 | |
Notes. The radius of the considered annulus is given in degrees and in kpc in the first column; the value of 744 kpc (Vilardell et al. 2010) is adopted for the distance to M 31. The considered regions as in Fig. 1 (right panel). The numbers of pixels in each region are given. The last three columns show the CMB mean temperatures per pixel of each region in μK in the W, V, and Q bands, respectively, with the corresponding 1σ errors (see text for details).
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