Table 1.
Characteristics of the Gemini observing run conducted to achieve ultra-deep imaging of NGC 1052-DF2 and NGC 1052-DF4.
| Object | Camera | Filter | texp, obj | nframes, obj | texp, sky | nframes, sky | ttotal, obj | μlimit (3σ; 10″ × 10″ boxes) |
|---|---|---|---|---|---|---|---|---|
| NGC 1052-DF4 | GMOS-S | r | 150 s | 36 | 50 s | 25 | 1 h 30 min | 30.6 mag arcsec−2 |
| NGC 1052-DF2 | GMOS-S | r | 150 s | 32 | 50 s | 25 | 1 h 20 min | 30.5 mag arcsec−2 |
| NGC 1052-DF2 | GMOS-N | g | 300 s | 18 | 60 s | 25 | 1 h 30 min | 30.9 mag arcsec−2 |
Notes. The table shows the exposure time and the number of frames taken during each night for both the sky and the on-source images. The surface brightness limit of the data (3σ; 10″ × 10″ boxes) and the camera used are also given.
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.