Free Access

Table 8

Abundance ratios of the deuterated molecule to the non-deuterated molecule and inferred D/H ratios in the observed Class I sources.

L1489-IRS B5-IRS1 L1455-IRS1 L1551-IRS5
Abundance D/H Abundance D/H Abundance D/H Abundance D/H
(%) (%) (%) (%) (%) (%) (%) (%)
D2CO/H2CO 0.8–1.8 (E) 9–13 6–30 (E) 24–55 8–28 (E) 28–53 20–70 (E) 45–84

CH2DOH/CH3OH 20–70 (E) 6–23 4–7 (E) 1–2 ≤3 (E) ≤1
2–10 H 0.7–3

HDCS/H2CS 18–27 (E) 9–14 10–30 (E) 5–15

Notes. (E)Envelope. (H)Hot corino.

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.