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Home All issues Volume 572 (December 2014) A&A, 572 (2014) A44 Full HTML
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Table B.1

Physico-chemical conditions of Orion-KL from CH3CH2CN.

Hot core 1 Hot core 2 Hot core 3
dsou (”) 4 10 25
offset (”) 5 5 5
vexp (km s-1) 5 13 22
vLSR (km s-1) 5 3 3
TETL (K) 275 110 65 NTOTAL (cm-2)
N(CH3CH2CN) (cm-2) (6 ± 2) × 10 16 (8 ± 2) × 1015 (3.0 ± 0.9) × 1015 (7 ± 2) × 10 16
N(CH3CH2CN ν13 = 1 / ν21 = 1) (cm-2) (8 ± 2) × 10 15 (1.1 ± 0.3) × 1015 (4 ± 1) × 1014 (1.0 ± 0.3) × 10 16
N(CH3CH2CN ν20) (cm-2) (3 ± 1) × 10 15 (4 ± 1) × 1014 (1.7 ± 0.5) × 1014 (4 ± 1) × 10 15
N(CH3CH2CN ν12) (cm-2) (1.2 ± 0.6) × 10 15 (1.6 ± 0.5) × 1014 (6 ± 3) × 1013 (1.4 ± 0.7) × 10 15
N(13CH3CH2CN) (cm-2) (7 ± 2) × 1014 (1.9 ± 0.6) × 1014 (7 ± 2) × 1013
N(CH313CH2CN) (cm-2) (7 ± 2) × 1014 (1.9 ± 0.6) × 1014 (7 ± 2) × 1013
N(CH3CH213CN) (cm-2) (7 ± 2) × 1014 (1.9 ± 0.6) × 1014 (7 ± 2) × 1013
N(CH3CH2C15N) (cm-2) (2 ± 1) × 1014 (5 ± 3) × 1013 (1.7 ± 0.8) × 1013
N(A-CH2DCH2CN) (cm-2) ≤6 × 1014 ≤2 × 1014 ≤6 × 1013
N(S-CH2DCH2CN) (cm-2) ≤7 × 1014 ≤1 × 1014 ≤6 × 1013
N(CH3CHDCN) (cm-2) ≤6 × 1014 ≤2 × 1014 ≤6 × 1013

Notes.Physico-chemical conditions of Orion-KL from the analysis of ethyl cyanide emission lines in the range of 80–280 GHz. In bold type, we display the doubled revised values. The other values are the same. The revised values corresponded to the hot narrow component (1) for the ground and excited states. Vibrational temperatures are not affected, while isotopic ratios have to be changed by the same correction factor.

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