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Table 2.
Details of the X-shooter observations and spectroscopic measurements for COLA1.
| Observations | COLA1 |
|---|---|
| Dates | 19 Jan 2018, 18–19 Feb 2018 |
| R0.9 μm | 5000 |
| R1.6 μm | 3800 |
| texp, UVB | 7.0 ks |
| texp, VIS | 7.8 ks |
| texp, NIR | 8.4 ks |
923 nm line properties |
|
| Fluxspec | 5.90 ± 0.24 × 10−17 erg s−1 cm−2 |
| FluxNB | 8.1 ± 1.6 × 10−17 erg s−1 cm−2 |
| EWobs |
 Å |
| Peak separation | 220 ± 20 km s−1 |
| FWHMred | 198 ± 14 km s−1 |
| FWHMblue | 150 ± 18 km s−1 |
| Fluxblue/Fluxred | 0.31 ± 0.03 |
| Sw, red | 18.0 ± 0.9 Å |
| Sw, blue | −1.5 ± 0.4 Å |
| Sw, full | 3.2 ± 0.2 Å |
Flux limits of interest |
|
| Hαz = 1.475 | < 5.2 × 10−18 erg s−1 cm−2 |
| [OIII]4959, z = 1.475 | < 9.8 × 10−18 erg s−1 cm−2 |
| [OIII]5007, z = 1.475 | < 9.0 × 10−18 erg s−1 cm−2 |
| CIVz = 6.591 | < 1.6 × 10−17 erg s−1 cm−2 |
| HeIIz = 6.591 | < 0.7 × 10−17 erg s−1 cm−2 |
Notes. Flux measurements of the 923 nm line are corrected for 19% slit-losses. Upper and lower limits are at the 2σ level. Flux limits assume a line-width FWHM = 200 km s−1.
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