Table 1
Molecular transitions and image properties for the detected lines in the HD 169142 disk.
| Species | Transition | Frequency (GHz) | Eup (K) | EAul (s−1) | gu | robust | Beam | δV (km s−1) | rms (mJy beam−1) | Int. flux (mJy km s−1) |
|---|---|---|---|---|---|---|---|---|---|---|
| [CI] | 3P1−3P0 | 492.160651 | 24 | 7.994 × 10−4 | 3 | 2.0 | 1.07″ × 0.51″ (81°) | 0.15 | 71.9 | (7.4±0.7) × 103 |
| DCO+ | J = 4−3 | 288.143858 | 35 | 5.858 × 10−3 | 9 | 0.5 | 0.72″ × 0.46″ (89°) | 0.26 | 2.64 | 970±100 |
| DCN | J = 3−2 | 217.238539 | 21 | 4.575 × 10−4 | 21 | 2.0, taper | 0.41″ × 0.37″ (86°) | 2.7 | 0.67 | 93.0.0±10 |
| DCN | J = 4−3 | 289.644917 | 35 | 1.124 × 10−3 | 27 | 0.5 | 0.73″ × 0.46″ (89°) | 16.2 | 0.24 | 240.0 ±20 |
| N2H+ | J = 3−2 | 279.511701 | 27 | 1.259 × 10−3 | 63 | 2.0 | 0.91″ × 0.58″ (85°) | 0.14 | 2.95 | 55.0±6 |
| CS(†) | J = 7−6 | 342.882850 | 66 | 8.368 × 10−4 | 15 | 0.5 | 0.29″ × 0.26″(37°) | 0.85 | 11.7 | ≳7 x 103 |
| CS | J = 10−9 | 489.750921 | 129 | 2.489 × 10−3 | 21 | 0.5 | 0.94″ × 0.40″ (83°) | 0.15 | 130.7 | (4.3±0.4) × 103 |
| C34S | J = 6−5 | 289.209066 | 38 | 4.812 × 10−4 | 13 | 0.5 | 0.73″ × 0.46″ (89°) | 16.2 | 0.23 | 261.0±30 |
| 13CS | J = 6−5 | 277.455405 | 47 | 4.399 × 10−4 | 26 | 0.5 | 0.73″ × 0.46″ (89°) | 1.10 | 1.1 | 51±5 |
| SO | J = 88−77 | 344.310612 | 88 | 5.186 × 10−4 | 17 | 2.0 | 0.19″ × 0.14″ (84) | 0.46 | 1.50 | 120±10 |
| H2CS | J = 8(1,7)−71,6 | 278.887661 | 73 | 3.181 × 10−4 | 51 | 0.5 | 0.73″ × 0.46″ (89°) | 1.10 | 1.07 | 140±10 |
| H2CO | J = 30,3−70,2 | 218.222192 | 21 | 2.818 × 10−4 | 7 | 2.0, taper | 0.41″ × 0.37″ (86°) | 2.7 | 0.52 | 480±50 |
| H2CO | J = 32,2−32,1 | 218.475632 | 68 | 1.571 × 10−4 | 7 | 2.0, taper | 0.41″ × 0.37″ (86°) | 2.7 | 0.51 | 55±6 |
| H2CO | J = 40,4−30,3 | 290.623405 | 35 | 6.902 × 10−4 | 9 | 0.5 | 0.73″ × 0.46″ (89°) | 16.2 | 0.26 | 900±90 |
| CH3OH | J = 42,2−31,2 | 218.440050 | 45 | 4.687 × 10−5 | 36 | 2.0 | 0.20″ × 0.15″ (88) | 0.46 | 1.44 | 65±7 |
| CH3OH | J = 9(−1,9)−8(0,8) | 278.304510 | 110 | 7.685 × 10−5 | 76 | 0.5 | 0.73″ × 0.46″ (89°) | 1.10 | 1.05 | 13±1 |
| CH3OH | blend* | 290.209700 | 112 | 7.994 × 10−5 | 52 | 0.5 | 0.73″ × 0.46″ (89°) | 16.2 | 0.24 | 104±10 |
| CH3OH | J = 11(1,10)−11(0,11) | 331.502370 | 169 | 3.929 × 10−4 | 92 | 2.0 | 0.20″ × 0.15″ (88) | 0.46 | 1.44 | 44±10 |
| HC3N | J = 24−23 | 218.324723 | 131 | 8.261 × 10−4 | 49 | 2.0 | 0.26″ × 0.21″ (74°) | 2.7 | 0.45 | 171±20 |
| c−C3H2 | J = 6(0,6)−11(1,5) | 217.822148 | 39 | 5.934 × 10−4 | 13 | 2.0, taper | 0.41″ × 0.37″ (86°) | 2.7 | 0.59 | 59±6(††) |
| c−C3H2 | J = 6(1,6)−11(0,5) | 217.822148 | 39 | 5.934 × 10−4 | 39 | 2.0, taper | 0.41″ × 0.37″ (86°) | 2.7 | 0.59 | 59±6(††) |
Notes. All of the molecular data are from the Cologne Database for Molecular Spectroscopy (CDMS, Müller et al. 2005). Since we are comparing molecular lines from a variety of different sets of observations we take the errors on the integrated fluxes to be the 10% absolute flux calibration uncertainty of ALMA. For reference, the C18O J = 2 − 1 disk integrated flux from Fedele et al. (2017) is 3.9±0.5 Jy km s−1. (*)Blended CH3OH emission from up to six lines where the Eup, EAul, and gu listed are of the strongest line J = 6(−3,4)−5(−3,3). Other lines are J = 6(3,3)−5(3,2), J = 6(3,4)−5(3,3), J = 6(4,2)−5(4,1), J = 6(2,5)−5(2,4), and J = 6(3,3)−5(3,2). (†)The CS J = 7-6 image was generated with a Gaussian uυ-taper of 0.25″ and then further smoothed in the image plane with the CASA imsmooth task using a Gaussian kernel of 0.2″. Due to the lack of short-baseline data, we consider this flux a lower limit. (††)The flux is of two blended lines.
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