Table 1
Results of simulations.
| Parameter | Input | Best fit EC0 | Best fit EC0 | Best fit EC0 | Best fit EC0 | Best fit EC1 | Best fit EC1 |
| ground–phot. | ground–phot. | ground–phot. | ground–phot. | balloon–phot. | balloon–phot. | ||
| prior σ = 3 keV | prior σ = 8 keV | prior σ = 3 keV | prior σ = 8 keV | prior σ = 3 keV | prior σ = 8 keV | ||
|
|
|||||||
| τt × 103 | 5 | 5.2 ± 0.6 | 3.9 ± 1.3 | 5.1 ± 0.7 | 4.7 ± 3.1 | 5.0 ± 1.3 | 5.3 ± 1.7 |
| T(keV) | 8.5 | 10.8 ± 1.2 | 15.8 ± 3.5 | 8.7 ± 1.1 | 12 ± 4 | 8.5 ± 0.3 | 8.6 ± 1.7 |
| ΔTCMB(μK) | 22 | – | – | 19 ± 6 | 11 ± 6 | 16 ± 2 | 16 ± 4 |
| ΔId(Jy/sr) | 600 | −1800 ± 200 | −1100 ± 500 | 390 ± 480 | 50 ± 660 | 580 ± 70 | 590 ± 80 |
| τnt × 103 | 0.1 | – | – | – | – | – | – |
| p1(511 keV/c) | 2.75 | – | – | – | – | – | – |
| ⟨ χ2 ⟩ /d.o.f. | – | 6.3/2 | 4.3/2 | 1.0/1 | 1.0/1 | 1.1/1 | 1.1/1 |
| Parameter | Input | Best fit EC4 | Best fit EC4 | Best fit EC4 | Best fit EC4 |
| L2–cold phot. | L2–cold phot. | L2–cold phot. | L2–cold phot. | ||
| prior σ = 3 keV | prior σ = 8 keV | prior σ = 3 keV | prior σ = 8 keV | ||
|
|
|||||
| τt × 103 | 5 | 5.2 ± 0.9 | 5.4 ± 1.9 | 5.0 ± 0.8 | 5.3 ± 2.1 |
| T(keV) | 8.5 | 8.5 ± 1.5 | 8.7 ± 2.5 | 8.6 ± 1.3 | 9.0 ± 2.7 |
| ΔTCMB(μK) | 22 | 16 ± 4 | 16 ± 4 | 21 ± 22 | 22 ± 23 |
| ΔId(Jy/sr) | 600 | 601 ± 6 | 600 ± 6 | 601 ± 5 | 601 ± 6 |
| τnt × 103 | 0.1 | – | – | 0.1 ± 0.4 | 0.1 ± 0.4 |
| p1(511 keV/c) | 2.75 | – | – | 6 ± 4 | 6 ± 4 |
| ⟨χ2⟩ /d.o.f. | – | 2.7/3 | 2.4/3 | 1.3/1 | 1.0/1 |
| Parameter | Input | Best fit EC2 | Best fit EC2 | Best fit EC3 | Best fit EC3 | Best fit EC5 | Best fit EC5 |
| balloon–warm spec. | balloon–warm spec. | EO–cold spec. | EO–cold spec. | L2–cold spec. | L2–cold spec. | ||
| prior σ = 8 keV | prior σ = 3 keV | prior σ = 8 keV | prior σ = 3 keV | prior σ = 8 keV | prior σ = 3 keV | ||
|
|
|||||||
| τt × 103 | 5 | 5.0 ± 0.9 | 4.9 ± 0.8 | 5.8 ± 2.6 | 5.2 ± 0.6 | 5.1 ± 0.6 | 5.1 ± 0.5 |
| T(keV) | 8.5 | 8.4 ± 0.8 | 8.5 ± 0.1 | 7.7 ± 2.0 | 8.1 ± 0.8 | 8.5 ± 1.2 | 8.5 ± 1.0 |
| ΔTCMB(μK) | 22 | 20 ± 50 | 20 ± 50 | 23 ± 8 | 22 ± 8 | 22 ± 4 | 22 ± 4 |
| ΔId(Jy/sr) | 600 | 570 ± 270 | 560 ± 270 | 590 ± 40 | 590 ± 40 | 600 ± 4 | 600 ± 4 |
| τnt × 103 | 0.1 | 0.1 ± 0.1 | 0.1 ± 0.1 | 0.12 ± 0.03 | 0.11 ± 0.02 | 0.10 ± 0.01 | 0.10 ± 0.01 |
| p1(511 keV/c) | 2.75 | 2.6 ± 0.7 | 2.5 ± 0.7 | 2.5 ± 0.9 | 2.7 ± 1.1 | 3.0 ± 1.0 | 2.9 ± 0.9 |
| ⟨χ2⟩ /d.o.f. | – | 34.9/34 | 34.9/34 | 77.8/78 | 78.0/78 | 110.0/110 | 110.1/110 |
Notes. For each experimental configuration (EC*) we simulated 3000 measurements and fitted each simulated measurement using Eq. (6). We report the averages of the best-fit parameters with their standard deviation. In the top table we summarize the results for 4-band photometers for both weak and medium prior for Te; in the middle table we report the results for a 6-band photometer (Planck-HFI bands). In the bottom table we report the results for low-resolution (Δν = 6 GHz) spectrometers with increasing mission complexity (balloon, Earth orbit, orbit around the Sun-Earth Lagrangian point L2).
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