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Table 4
Measured fluxes and significance of the 511 keV line emission from individual regions.
| Name | Region | 99% Flux Upper Limit | Best-Fit Flux | Chance Probability (%) | |
|---|---|---|---|---|---|
| l (deg) | b (deg) | (× 10−5 ph cm−2 s−1) | |||
| Cygnus | [60, 80] | [−15, 15] | <6.5 | 4.2 ±stat 2.0 ±sys 2.0 | 6.4 × 10−2 |
| Upper Scorpius | [340, 360] | [25, 40] | <2.6 | 1.4 ±stat 0.8 ±sys 0.5 | 8.0 × 10−2 |
| Orion | [190, 220] | [−50, −10] | <7.0 | 2.7 ±stat 1.3 ±sys 0.8 | 4.6 × 10−1 |
| Orion + Perseus | [150, 220] | [−50, −10] | <12.1 | 8.6 ±stat 2.4 ±sys 2.5 | 1.1 × 10−1 |
| Vela | [260, 290] | [−15, 15] | <8.3 | 4.4 ±stat 2.1 ±sys 3.1 | 1.9 × 10−1 |
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