Table 6
Physical parameters of the considered cloud cores.
| Source | Coordinates | HPBW(a) | Frequencies(b) | vLSR (c) | Δ vFWHM (d) | dsou (e) | Trot (f) | N(trans)(g) | N(cis)(h) |
|---|---|---|---|---|---|---|---|---|---|
| (J2000.0) | (″) | (GHz) | (km s−1) | (km s−1) | (″) | (K) | ×1014 (cm−2) | ×1014 (cm−2) | |
| Orion KL | α = 05h35m14.5s | ~1.9 × 1.4 | 213.7–246.7 | 8.0 | 3.0 | 3 | 150 | ≤(2.5 ± 1.2) | ≤(6.0 ± 3.0) |
| (ALMA SV) | δ = −05°22′32.5″ | ||||||||
| Hot core | |||||||||
| Orion KL | α = 05h35m14.1s | ~1.9 × 1.4 | 213.7–246.7 | 7.5 | 2.0 | 3 | 150 | ≤(2.0 ± 1.0) | ≤(5.0 ± 2.5) |
| (ALMA SV) | δ = −05°22′36.9″ | ||||||||
| Compact ridge | |||||||||
| Orion KL | α = 05h35m14.2s | ~1.9 × 1.4 | 213.7–246.7 | 5.0 | 3.0 | 3 | 150 | ≤(2.0 ± 1.0) | ≤(5.0 ± 2.5) |
| (ALMA SV) | δ = −05°22′31.1″ | ||||||||
| MM4 | |||||||||
| Sgr B2(N) | (IRAM 30m) | 30–21 | 80–115.5 | 63 | 8.0 | 3 | 100 | ≤(100 ± 50) | ≤(200 ± 100) |
| α = 17h47m20.0s | 73 | 8.0 | 3 | 100 | ≤(100 ± 50) | ≤(200 ± 100) | |||
| δ = −28°22′19.0″ | |||||||||
| (GBT 100m) | 80–15 | 7–50 | |||||||
| α = 17h47m19.8s | |||||||||
| δ = −28°22′17.0″ | |||||||||
Notes. (a) HPBW for observations with single dish telescope (IRAM 30 m and GBT 100 m) and synthetic beam for the ALMA SV observations. (b) Range of frequencies considered in the analysis. (c)Radial velocity with respect the Local Standard of Rest. (d)FWHM. (e) Source diameter assuming a uniform disc-type model. (f)Rotational temperature. (g) Column density for trans isomer of CPCA in the ground state. (h)Column density for cis isomer of CPCA in the ground state.
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