Table 1
Molecular line and continuum ALMA observations used in this work.
| Molecule | Transition(a) | Aul (s−1) | Eu (K) | Frequency (GHz) | Int. flux(b) (mJy km s−1) | Channel width (km s−1 ) | Channel rms (mJy beam−1) | Beam | Ref. |
|---|---|---|---|---|---|---|---|---|---|
| NO(c) | 4−1,7/2,9/2−31,5/2,7/2 | 5.4 × 10−6 | 36 | 350.689 | CH3OH blend | 1.7 | ~1.2 | 0."55 × 0."44 (−79.8°) | (1) |
| NO(c) | 4−1,7/2,7/2 − 31,5/2,5/2 | 5.0 × 10−6 | 36 | 350.691 | CH3OH blend | 1.7 | ~1.2 | 0."755 × 0."744 (−79.8°) | (1) |
| NO(c) | 4−1,7/2,5/2 − 31,5/2,3/2 | 4.8 × 10−6 | 36 | 350.695 | CH3OH blend | 1.7 | ~1.2 | 0."755 × 0."744 (−79.8°) | (1) |
| NO(d) | 41,7/2,9/2 − 3−1,5/2,7/2 | 5.4 × 10−6 | 36 | 351.044 | 31 | 1.7 | ~1.2 | 0."755 × 0."744 (−79.8°) | (1) |
| NO(d) | 41,7/2,7/2 − 3−1,5/2,5/2 | 5.0 × 10−6 | 36 | 351.052 | 23 | 1.7 | ~1.2 | 0."755 × 0."744 (−79.8°) | (1) |
| NO(d) | 41,7/2,5/2 − 3−1,5/2,3/2 | 4.8 × 10−6 | 36 | 351.052 | 16 | 1.7 | ~1.2 | 0."755 × 0."744 (−79.8°) | (1) |
| N2O | 140,0 − 130,0 | 6.3 × 10−6 | 127 | 351.668 | <45 | 1.7 | ~1.2 | 0."755 × 0."744 (−79.8°) | (2) |
| NO2 (e) | 51,5,11/2,13/2 40,4,9/2,11/2 | 1.4 × 10−5 | 29 | 348.821 | <65 | 1.7 | ~1.2 | 0."756 × 0."744 (80.2°) | (2) |
| NH2OH(e) | 71,7 − 61,6 | 8.1 × 10−5 | 76 | 352.298 | <46 | 1.7 | ~1.2 | 0."755 × 0."744 (79.8°) | (2) |
| CN(f) | 30,7/2,7/2 − 20,5/2,5/2 | 3.8 × 10−4 | 33 | 340.248 | <51 | 1.0 | 1.8 | 0."725 × 0."720 (80.9°) | (3) |
| CN(f) | 30,7/2,9/2 − 20,5/2,7/2 | 4.1 × 10−4 | 33 | 340.248 | <69 | 1.0 | 1.8 | 0."725 × 0."720 (80.9°) | (3) |
| CN(f) | 30,7/2,5/2 − 20,5/2,3/2 | 3.7 × 10−4 | 33 | 340.249 | <37 | 1.0 | 1.8 | 0."725 × 0."720 (80.9°) | (3) |
| C2H(g) | 49/2,5 − 37/2,4 | 1.3 × 10−4 | 42 | 349.338 | <26 | 1.7 | 1.0 | 0."764 × 0."751 (80.1°) | (4) |
| C2H(g) | 49/2,4 − 37/2,3 | 1.3 × 10−4 | 42 | 349.339 | <26 | 1.7 | 1.0 | 0."764 × 0."751 (80.1°) | (4) |
| 13CO | 3 − 2 | 2.2 × 10−6 | 11 | 330.588 | 4.5 × 103 | 0.5 | 2.2 | 0."719 × 0."714 (64.8°) | (3) |
| cont.(h) | 0.89 mm | 336 | 0.18 | 0.056 | 0."719 × 0."714 (65.4°) | (3) |
Notes. (a)Quantum numbers are formatted for NO as 
and line strengths taken from CDMS and Varberg et al. 1999, NH2OH as 
(CDMS, Tsunekawa 1972), N2O as 
(JPL, Burrus & Gordy 1956), NO2 as JΩ,Λ,(F1),(F2),(F) (JPL, Bowman & de Lucia 1982; Semmoud-Monnanteuil et al. 1989), CN as 
(CDMS, Skatrud et al. 1983), C2H as 
(CDMS, Sastry et al. 1981), and 13CO as J (CDMS Klapper et al. 2000). (b) Disk-integrated flux within the Keplerian mask. Blended lines are corrected for their expected line strength by scaling the total integrated flux with Aij × gu neglecting the dependence on Eu, unless denoted otherwise. (c)Detected but blended with the two other NO lines at 350.7 GHz and a methanol line. (d)Blended with the two other NO lines at 351.04–351.05 GHz.(e) Only the line that is expected to be brightest is listed. This line is blended with two weak 266 K lines, that are neglected for the calculation of the integrated flux. (f)Blended with another CN line at 340.2 GHz. (g)Blended with another C2H line at 349.3 GHz. (h)Unit of the integrated continuum flux is Jy.
References. (1) ALMA project code: 2017.1.00834.S (Paper II). (2) ALMA project code: 2017.1.00834.S (this work). (3) ALMA project code: 2013.1.00100.S (this work). (4) ALMA project code: 2017.1.00834.S (van der Marel et al. 2021b).
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