Table E.1
Observational setups and noise level.
| Setup | SPW(a) | Spectrum rms(b) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Frequency range | Channel map rms(c) | N3 | N4 | N5 | ||||||
| (MHz) | (mJy beam−1) | (K) | (mJy beam−1) | (K) | (mJy beam−1) | (K) | (mJy beam−1) | (K) | ||
| S1 | 0 | 84 091–85 966 | 3.0 | 0.16 | 2.6 | 0.14 | 2.9 | 0.15 | 4.1 | 0.22 |
| 1 | 85 904–87 779 | 2.7 | 0.14 | 2.7 | 0.14 | 2.6 | 0.14 | 3.9 | 0.21 | |
| 2 | 96 154–98 029 | 3.0 | 0.16 | 2.9 | 0.15 | 3.1 | 0.16 | 4.5 | 0.23 | |
| 3 | 97 904–99 779 | 3.1 | 0.16 | 3.4 | 0.18 | 2.9 | 0.15 | 3.8 | 0.20 | |
| S2 | 0 | 87 729–89 604 | 3.1 | 0.15 | 2.7 | 0.13 | 2.5 | 0.12 | 3.4 | 0.17 |
| 1 | 89 554–91 429 | 2.8 | 0.15 | 2.5 | 0.13 | 2.5 | 0.14 | 3.9 | 0.21 | |
| 2 | 99 728–101 602 | 2.7 | 0.14 | 2.5 | 0.13 | 2.5 | 0.13 | 3.9 | 0.20 | |
| 3 | 101 552–103 427 | 2.7 | 0.14 | 2.5 | 0.13 | 2.8 | 0.15 | 3.8 | 0.20 | |
| S3 | 0 | 91 368–93 242 | 3.4 | 0.12 | 2.7 | 0.09 | 2.9 | 0.10 | 5.0 | 0.17 |
| 1 | 93 193–95 067 | 3.1 | 0.10 | 3.3 | 0.11 | 2.4 | 0.08 | 4.7 | 0.16 | |
| 2 | 103 365–105 239 | 3.4 | 0.11 | 3.0 | 0.10 | 3.0 | 0.10 | 5.2 | 0.36 | |
| 3 | 105 189–107 064 | 3.6 | 0.12 | 3.1 | 0.11 | 3.4 | 0.12 | 5.7 | 0.19 | |
| S4 | 0 | 95 021–96 896 | 1.9 | 0.10 | 1.9 | 0.10 | 2.1 | 0.11 | 2.7 | 0.14 |
| 1 | 96 846–98 720 | 1.9 | 0.10 | 2.1 | 0.11 | 2.0 | 0.10 | 2.8 | 0.15 | |
| 2 | 107 019–108 893 | 2.2 | 0.11 | 3.0 | 0.16 | 2.1 | 0.11 | 3.2 | 0.17 | |
| 3 | 108 843–110 718 | 2.3 | 0.12 | 2.2 | 0.12 | 2.2 | 0.12 | 3.6 | 0.19 | |
| S5 | 0 | 98 672–100 546 | 2.8 | 0.14 | 2.9 | 0.14 | 2.5 | 0.12 | 3.8 | 0.19 |
| 1 | 100 496–102 370 | 2.7 | 0.13 | 2.5 | 0.13 | 2.3 | 0.12 | 3.9 | 0.19 | |
| 2 | 110 669–112 543 | 3.5 | 0.17 | 3.2 | 0.15 | 3.7 | 0.18 | 4.9 | 0.23 | |
| 3 | 112 494–114 368 | 4.9 | 0.24 | 4.0 | 0.20 | 4.0 | 0.20 | 5.8 | 0.29 | |
Notes. (a) Spectral window. (b)Noise level measured in each spectral window of the new continuum-subtracted spectra obtained toward Sgr B2(N3-N5) (Sect. 2.2). The rms values are not corrected for the primary beam attenuation. (c) Median noise level measured in the channel maps with the command GO NOISE in GREG in the continuum-subtracted datacubes (Belloche et al. 2016).
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