Table 16.
Stability of the NEFD estimates.
| Data set | Method | A1 | A3 | A1 and A3 | A2 |
|---|---|---|---|---|---|
| HLS J0918+5142 | Deep int. | 46.6 | 38.4 | 30.4 | 8.5 |
| Scatter | 45.7 | 36.3 | 28.5 | 8.2 | |
| N2R9 | Scatter | 47.0 | 36.9 | 28.8 | 8.4 |
| N2R12 | 47.3 | 36.4 | 30.2 | 8.5 | |
| N2R14 | 47.3 | 39.8 | 30.9 | 9.3 | |
| Combined | 47.2 | 37.9 | 30.1 | 8.8 | |
Notes. Top-of-atmosphere NEFD in mJy s1/2 for the two methods described in the text, which are the deep integration (labelled “Deep int”) and the scatter method (“Scatter”), and using two different data sets, HLS J0918+5142 and all sub-Jy sources acquired during the reference observation campaigns. The results given in the last row are based on more than a thousand scans (202, 481, and 430 scans during N2R9, N2R12, and N2R14, respectively).
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.