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Table A.1.

Sample properties.

Target Stellar C2H line properties Continuum properties

L* d Finteg Tb, peak, 100pc Beam Ftotal ν rms Md < 30K Md < 22K Beam Refsb
(L) (pc) (mJy (K (") (mJy) (GHz) (mJy (M) (M) (")
km s−1) km s−1) bm−1)
1. IRS48 18 135 < 11a < 1.1a 0.63x0.50 173 336 0.05 4.24 0.01 0.19x0.14 1,6
2. Sz68 5.5 154 < 5.3 < 7.1 0.25x0.21 76 239 0.02 0.19 0.01 0.04x0.03 2,7
3. DOTau 1.4 139 < 62 < 2.4 0.63x0.49 120 225 0.10 11.77 0.95 0.09x0.07 3,8
4. J1614-1906 0.5 143 < 100 < 5.3 0.56x0.45 20 239 0.04 3.62 2.60 0.22x0.20 3,9
5. J1612-1859 0.3 139 < 97 < 3.6 0.56x0.45 5.7 341 0.26 0.42 0.33 0.33x0.30 3,10
6. J16070384 0.25 150 < 16 < 24 0.25x0.21 0.5 225 0.04 0.11 0.10 0.13x0.12 2,11
7. MWC480 18.6 162 1846 97 0.73x0.47 264 225 0.06 20.0 1.7 0.17x0.11 3,8
8. HD163296 17 101 4396 41 0.55x0.47 634 239 0.02 24.1 1.1 0.05x0.04 3,7
9. HD143006 3.8 165 435 20 0.58x0.46 57 239 0.01 14.6 7.0 0.05x0.04 3,7
10. IMLup 2.6 158 1450 18 0.56x0.55 209 239 0.01 40.8 34.0 0.04x0.04 3,7
11. Sz98 1.53 156 1101 51 0.22x0.17 104 255 0.08 24.3 20.0 0.20x0.13 2,2
12. AS209 1.4 121 2709 52 0.65x0.55 233 239 0.02 30.6 21.9 0.04x0.04 3,7
13. CITau 0.9 159 1041 59 0.59x0.49 128 225 0.06 31.6 28.2 0.13x0.11 3,8
14. MYLup 0.87 157 284 27 0.22x0.17 78 239 0.02 18.4 14.9 0.04x0.04 2,7
15. J1609-1908 0.4 138 563 56 0.56x0.45 22 239 0.04 3.82 2.98 0.22x0.20 3,9
16. Sz71 0.33 156 1101 71 0.23x0.17 83 239 0.02 19.1 16.9 0.04x0.04 2,7
17. TWHya 0.3 60 10720a 15a 0.48x0.39 1380 346 0.03 19.2 16.3 0.03x0.03 4,12
18. Sz114 0.2 162 383 57 0.22x0.17 48 239 0.02 11.5 9.7 0.07x0.03 2,7
19. LkCa15 1.3 159 2435 62 0.59x0.49 229 341 0.02 24.1 24.1 0.05x0.03 3,13
20. V4046Sgr 0.86 72 2962 4.8 0.97x0.70 251 239 0.05 13.0 10.5 0.06x0.04 3,6
21. J1604-2130 0.7 150 2632 52 0.56x0.45 258 350 0.18 24.2 24.2 0.23x0.20 3,6
22. Sz129 0.44 162 107 26 0.26x0.21 82 239 0.02 20.9 17.0 0.04x0.03 2,7
23. PDS70 0.3 113 1327 8.7 0.39x0.32 159 351 0.03 8.5 8.5 0.07x0.05 5,7
24. DMTau 0.24 145 2013 43 0.57x0.49 56 225 0.01 12.0 12.0 0.03x0.02 3,7
25. J16070854 0.18 176 647 62 0.22x0.17 33 225 0.11 10.8 10.6 0.22x0.21 2,11
26. J16090141 0.15 164 200 37 0.25x0.21 7.6 225 0.02 2.1 2.1 0.04x0.03 2,14

a C2H N = 4−3, J = 7/2−5/2 doublet at 349.4 GHz rather than the N = 3−2, J = 7/2−5/2 doublet at 262.006 GHz.

b References for the C2H data (first) and for the continuum data (second).

Refs. 1) This work; 2) Miotello et al. (2019); 3) Bergner et al. (2019); 4) Bergin et al. (2016); 5) Facchini et al. (2021); 6) Francis & van der Marel (2020); 7) Andrews et al. (2018); 8) Long et al. (2019); 9) ALMA archival data 2017.1.01167.S; 10) Barenfeld et al. (2016); 11) Ansdell et al. (2018); 12) Andrews et al. (2016); 13) Facchini et al. (2020); 14) van der Marel et al. in prep.

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