Table C.1.
Water deuterium fractionation ratios determined in comets and protostars.
| Source name | HDO/H2O | Ref. |
|---|---|---|
| (× 10−4) | ||
| Oort Cloud Comets | ||
| 1/P Halley | 4.2 ± 0.6 | (1) |
| C/1996 B2 Hyatuake | 5.8 ± 2.0 | (2) |
| C/1995 O1 Hale-Bopp | 6.6 ± 1.6 | (3) |
| C/2007 B3 Lulin | < 11.2 | (4) |
| 8P/Tuttle | 8.2 ± 2.9 | (5) |
| C/2009 P1 Garradd | 4.1 ± 0.4 | (6) |
| C/2002 T7 LINEAR | 5.0 ± 1.4 | (7) |
| 153P Ikeya-Zhang | < (5.6 ± 0.6) | (8) |
| C/2012 F6 Lemmon | 13.0 ± 3.2 | (9) |
| CC/2014 Q2 Lovejoy | 2.8 ± 0.8 | (9) |
| Jupiter Family Comets | ||
| 45P/Honda-Mrkos-Pajduáková | < 4.0 | (10) |
| 103P Hartley 2 | 3.2 ± 0.5 | (11) |
| 67/P Churyumov-Gerasimenko | 10.6 ± 1.4 | (12) |
| 46P/Wirtanen | 3.2 ± 1.3 | (13) |
| Clustered Class 0 protostars | ||
| NGC1333 IRAS 4A-NW | 5.4 ± 1.5 | (14) |
| NGC1333 IRAS 2A | 7.4 ± 2.1 | (14) |
| NGC1333 IRAS 4B | 5.9 ± 2.6 | (14) |
| IRAS 16293-2422 | 9.2 ± 2.6 | (15) |
| Isolated Class 0 protostars | ||
| BHR71-IRS1 | 18 ± 4 | (16) |
| B335 | 17 ± 3 | (16) |
| L483 | 22 ± 4 | (16) |
| Class I protostars | ||
| V883 Ori | 23 ± 6 | (17) |
| L1551 IRS5 – N, vLSR ∼ 9 km s−1 | 21 ± 8 | (18) |
| L1551 IRS5 – M, vLSR ∼ 6 km s−1 | > (5 ± 2) | (18) |
Notes. This table is an updated version of Table A1 from Jensen et al. (2019). A factor 2 error on the conversion of the D/H ratio onto the HDO/H2O ratio has been corrected for the comets C/2012 F6 Lemmon and CC/2014 Q2 Lovejoy (Biver et al. 2016).
References. (1) Brown et al. (2012); (2) Bockelée-Morvan et al. (1998); (3) Meier et al. (1998); (4) Gibb et al. (2012); (5) Villanueva et al. (2009); (6) Bockelée-Morvan et al. (2012); (7) Hutsemékers et al. (2008); (8) Biver et al. (2006); (9) Biver et al. (2016); (10) Lis et al. (2013); (11) Hartogh et al. (2011); (12) Altwegg et al. (2015); (13) Lis et al. (2019); (14) Persson et al. (2014); (15) Persson et al. (2013); (16) Jensen et al. (2019); (17) Tobin et al. (2023); (18) This work.
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