Table 1.
Observed lines, bandwidth, number of channels and polarization products, channel spacings, velocity coverage, and theoretical sensitivity for two visits of one pointing (for the full 1 GHz for the continuum and 1 channel for spectral lines) of the VLA observations.
| Line | Frequency | Bandwidth | Chan. | Resolution | Coverage | 1σ rms in 15 s |
|---|---|---|---|---|---|---|
| [MHz] | [MHz] | & pol. prod. | [km s−1] | [km s−1] | [mJy beam−1] | |
| Continuum | 4200–5200 | 8 × 128 | 8 × 64 × 4 | – | – | 0.09 |
| H114α | 4380.954 | 8 | 128 × 2 | 4.3 | 547 | 11 |
| H113α | 4497.776 | 8 | 128 × 2 | 4.2 | 533 | 11 |
| H112α | 4618.789 | 8 | 128 × 2 | 4.1 | 529 | 11 |
| H2CO | 4829.660 | 4 | 1024 × 2 | 0.24 | 248 | 45 |
| H110α | 4874.157 | 8 | 128 × 2 | 3.8 | 492 | 11 |
| Continuum | 6400–7400 | 8 × 128 | 8 × 64 × 4 | – | – | 0.08 |
| CH3OH | 6668.518 | 8 | 2048 × 2 | 0.18 | 360 | 38 |
| H99α | 6676.076 | 8 | 128 × 2 | 2.8 | 359 | 11 |
| H98α | 6881.486 | 8 | 128 × 2 | 2.7 | 348 | 11 |
| H96α | 7318.296 | 8 | 128 × 2 | 2.5 | 328 | 11 |
Notes. For l = 58°–60° the RRLs H115α (4268.142 MHz), H102α (6106.855 MHz), and H103α (5931.544 MHz) were observed instead of H110α and H96α. The central LSR velocity changed for different parts of the survey based on longitude-velocity plots of CO in the Milky Way.
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