Table A.1
Measured HC14N/HC15N ratios for various sources.
| Object | 14N/15N | Method | Reference |
|---|---|---|---|
| Starless and pre-stellar cores | |||
| CB23 | 216±60 | direct | This work |
| TMC2 | 461±130 | direct | This work |
| L1495 | 197±61 | direct | This work |
| L1512 | 251±76 | direct | This work |
| L1517B | 280±85 | direct | This work |
| L1495AN | 340±53 | indirect | This work |
| L183 | 195±55 | indirect | 1 |
| L1544 | 250±110 | indirect | 1 |
| B1-b | 165±30 | direct | 2 |
| L1498 | 338±28 | direct | 3 |
| L1521E | 150±50 | indirect | 4 |
| Protostars | |||
| L483 | 321±96 | direct | 5 |
| L1527 | 250±80 | indirect | 6 |
| IRAS16293 | 200±40 | indirect | 7 |
| OMC-3 | 315±45 | indirect | 7 |
| Protoplanetary disks | |||
| TW Hya | 223±21 | direct | 8 |
| HD163296 | 142±59 | indirect | 9 |
| MWC480 | 123 ± 45 | indirect | 9 |
| V4046Sgr | 115±35 | indirect | 9 |
| LkCa15 | 83±32 | indirect | 9 |
| AS209 | 156±71 | indirect | 9 |
| Comets | |||
| C/1995 O1 | 205±70 | indirect | 10 |
| 17P/Holmes | 139±26 | indirect | 10 |
Notes. For L1544, a more recent value is available based on maps presented in Spezzano et al. (2022). These maps show a spatial difference in the fractionation ratio and we choose to include the single pointing value in this table for simplicity.
References. (1) Hily-Blant et al. (2013a) (2) Daniel et al. (2013); (3) Magalhães et al. (2018); (4) Ikeda et al. (2002); (5) Agúndez et al. (2019); (6) Yoshida et al. (2019); (7) Wampfler et al. (2014); (8) Hily-Blant et al. (2019); (9) Guzmán et al. (2017); (10) Bockelée-Morvan et al. (2008).
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