Table 1.
Ground state rotational transition frequencies of H2CCCH+, determined by laboratory and astronomical detections.
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Frequency/MHz | obs-calc/kHz | Source |
---|---|---|---|
212 → 111 | 37 702.627(10) | 0.3 | Astro (a) |
202 → 101 | 38 037.044(10) | 7.0 | Astro (a) |
211 → 110 | 38 368.581(20) | 33.0 | Astro (a) |
515 → 414 | 94 254.055(4) | 7.7 | Lab |
505 → 404 | 95 086.000(10) | −12.8 | Lab |
514 → 413 | 95 918.753(3) | 7.9 | Lab |
616 → 515 | 113 103.272(4) | −2.6 | Lab |
606 → 505 | 114 099.086(6) | 6.0 | Lab |
615 → 514 | 115 100.840(3) | −2.7 | Lab |
717 → 616 | 131 951.635(3) | −5.4 | Lab |
707 → 606 | 133 109.888(6) | −3.9 | Lab |
716 → 615 | 134 282.033(4) | −5.1 | Lab |
818 → 717 | 150 799.008(4) | 5.3 | Lab |
808 → 707 | 152 118.074(5) | 0.8 | Lab |
817 → 716 | 153 462.176(3) | −3.7 | Lab |
10110 → 919 | 188 490.152(12) | 1.6 | Lab |
1019 → 918 | 191 818.719(10) | 27.3 | Lab |
Notes.
(a)
The uncertainty in the last digits of each line is provided in parentheses. Observed frequency assuming a Local Standard of Rest velocity (vLSR) of 5.83 km s−1 (Cernicharo et al. 2020a).
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