Free Access
Table 1
Initial conditions for the ice composition in IRAS 16293-2422.
| Species | Abundance | Isotopologue | Fractionation |
|
|
|||
| H2O | 5.0(− 5) | HDO | 1.0(− 4)−1.1(− 1) |
| D2O | 2.5(− 9)−2.8(− 3) | ||
| CH3OH | 1.5(− 6) | CH3OD | 1.2(− 1) |
| CH2DOH | 3.6(− 1) | ||
| CH2DOD | 4.3(− 2) | ||
| CD2HOH | 4.3(− 2) | ||
| CD2HOD | 5.2(− 3) | ||
| CD3OH | 1.7(− 3) | ||
| CD3OD | 2.1(− 4) | ||
Notes.The fractionation ratios of the deuterated isotopologues of methanol are purely statistical assuming an accreting ratio αm of 0.12. Numbers in brackets denote the power of ten, e.g. 1.0(−4) = 1.0 × 10-4.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.