Table 2
Observed molecular lines with ALMA in the HL Tau disk.
| Transition | Freq. (GHz) | rflux | Int. flux (mJy km s-–1) | δVchan (km s–1) | σchan (mJy beam–1) | robust | Beam | ϵ | Baselines |
|---|---|---|---|---|---|---|---|---|---|
| H2O 31,3–22,0 | 183.310 | 0".28 | 882 ± 318 | 1.0 | 9–11 | 0.0 | 0."083 × 0."066 (–21.0°) | 0.35 | SB, LB |
| H2O 31,3–22,0 | 183.310 | 0".7 | 906 ± 140 | 1.0 | 5–7 | 2.0 | 0."35 × 0."30 (–8.5°) | 0.34 | SB, LB |
| H2O 102,9–93,6 | 321.226 | 0".28 | 269 ±91 | 1.0 | 2 | 2.0 | 0."067 × 0."061 (12.3°) | 0.39 | LB |
| H13CO+ 2–1 | 173.507 | 1".2 | 113 ± 16(a) | 1.0 | 0.7 | 2.0(b) | 0."29 × 0."26 (–50.5°) | 0.86 | LB |
| SO(c) 44–33 | 172.181 | 0".17 | 106 ± 13 | 2.0 | 0.3 | 0.5 | 0."11 × 0."086 (–33.1°) | 0.68 | LB |
| SO(d) 44–33 | 172.181 | 2."5 | 1019 ± 155 | 2.0 | 0.3 | 0.5 | 0."11 × 0."086 (–33.1°) | 0.68 | LB |
Notes. The channel rms for the H2O 183 GHz transition is given as a range because the rms is frequency-dependent due to the telluric as detailed in Appendix A.1. The uncertainty on the disk-integrated flux includes the 10% absolute flux calibration error of ALMA. (a) Measured in the Keplerian mask; (b) a 0′′.2-uv taper was applied; (c) tracing primarily the SO emission in the disk; (d) tracing the SO emission in the disk, outflow, and streamer.
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