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Table 2
Observed ammonia transitions toward G34.3+0.15 with Herschel-HIFI.
Transition | Frequencya | E l b | E u c | A ul d | n crit e | g l / g u f | HPBW g | η mb h | T C i | 1σ/TCj | |
(JK,ϵ) | (GHz) | (K) | (K) | log 10(s-1) | (cm-3) | (″) | (K) | (%) | |||
|
|||||||||||
o-NH3 | 10 +–00 + | 572.498 | 0 | 27 | −2.802 | 3.4e7 | 4/12 | 36 | 0.62 | 0.86 | 3.0 |
20 +–10 + | 1214.853 | 27 | 86 | −1.742 | 3.1e8 | 12/20 | 17 | 0.61 | 4.35 | 2.4 | |
30 +–20 + | 1763.524 | 86 | 170 | −1.226 | 1.1e9 | 20/28 | 12 | 0.60 | 6.60 | 1.1 | |
|
|||||||||||
p-NH3 | 21 −–11 − | 1168.452 | 23 | 79 | −1.918 | 3.1e8 | 6/10 | 18 | 0.61 | 4.50 | 1.5 |
21 +–11 + | 1215.246 | 22 | 80 | −1.867 | 3.5e8 | 6/10 | 17 | 0.61 | 4.37 | 2.4 | |
31 +–21 + | 1763.601 | 80 | 165 | −1.277 | 1.2e9 | 10/14 | 12 | 0.60 | 6.60 | 1.1 | |
32 +–22 + | 1763.823 | 64 | 149 | −1.482 | 9.3e8 | 10/14 | 12 | 0.60 | 6.60 | 1.1 |
Notes. All spectroscopic data are taken from JPL. . .
(g)
The Herschel half power beam width at respective frequency (Mueller et al. 2014)
(h)
The main beam efficiency (Mueller et al. 2014).
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