Table 1.
Molecular transitions used in the analysis.
| Molecule | Transition | Frequency | Eup | Aul |
|---|---|---|---|---|
| (GHz) | (K) | (×10−5 s−1) | ||
| PN | J = 2−1 | 93.979 | 6.8 | 2.9 |
| J = 3−2 | 140.967 | 13.5 | 10.5 | |
| PO (a) | F = 3−2, l = e | 108.998 | 8.4 | 2.1 |
| F = 2−1, l = e | 109.045 | 8.4 | 1.9 | |
| PH3 | J = 1−0 | 266.945 | 12.8 | 2.4 |
| CP (b) | F = 3−2 | 95.710 | 6.9 | 0.4 |
| F = 2−1 | 95.713 | 6.9 | 0.4 | |
| CCP (c) | F = 8−7, l = e | 95.406 | 19.2 | 5.3 |
| F = 7−6, l = e | 95.410 | 19.3 | 5.2 | |
| F = 8−7, l = f | 95.456 | 19.3 | 5.3 | |
| F = 7−6, l = f | 95.460 | 19.3 | 5.3 | |
| 29SiO | J = 2−1 | 85.759 | 6.2 | 2.8 |
| J = 3−2 | 128.637 | 12.3 | 10.2 | |
| J = 4−3 | 171.512 | 20.6 | 25.1 | |
| C34S | J = 2−1 | 96.412 | 6.2 | 1.6 |
| J = 3−2 | 144.617 | 11.8 | 5.8 |
Notes.
J = 5/2−3/2, Ω = 1/2. The other two lines of this quadruplet at 109.206 and 109.281 GHz are not used due to heavy contamination from other molecular species.
Spectroscopic data obtained from the CDMS catalogue: PN entry 045511 (September 2019), PO entry 047507 (October 2019), PH3 entry 034501 (May 2013), CP entry 043501 (March 2000), CCP entry 055503 (April 2009), 29SiO entry 045504 (January 2014), and C34S entry 046501 (January 2004).
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