Free Access
Table 1
ALMA observations discussed in this paper.
| Species | Approximate rest frequency | Date |
| (GHz) | ||
|
|
||
| OH+ | 909 | 2015 June 06 |
| H2O+ | 604, 607, 631 | 2014 May 03 |
| – | 2014 May 06 | |
| – | 2014 June 30 | |
| H2O+/ArH+ | 634/617 | 2015 May 19 |
| H2O/CH | 557/532/536 | 2014 May 05 |
| – | 2014 July 19 | |
| – | 2016 March 05 | |
H O |
547 | 2014 May 05 |
| – | 2014 July 18 | |
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.