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Table 1
Summary of the main features of the observational systems.
| EABA | CASLEO | |
|
|
||
| Telescope size [m] | 1.54 | 2.15 |
| f-ratio | 4.9 | 8.6 |
| CCD brand | Apogee | Roper |
| Detector size [px] | 3072 × 2048 | 2048 × 2048 |
| Binning [px] | 3 × 3 | 5 × 5 |
| Pixel scale [arcsec/px] | 0.74 | 0.75 |
| Field of view [arcmin] | 12 × 8 | 5.1 × 5.1 |
| Central λ [Å]a | 6578 | 6582 |
| Bandpass filter [Å]a | 20 | 18 |
| Filter transmission Tλ6585 | 0.92 | 0.53 |
| Zero-point k0 [mag] | −3.38 ± 0.10 | −1.77 ± 0.03 |
| Ext. coeff. k1 [mag/airmass] | −0.08 ± 0.04 | −0.11 ± 0.02 |
| Lim. magnitude [mag arcmin-2] | 12.1 | 12.6 |
Notes. The default gain for each instrument was used in all runs.
(a)
See Fig. 1.
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