Table 5.
Number counts resulting from the GTC2018A (left) and GTC2019A (right) programs.
| Objects spectroscopic class | GTC2018A results |
GTC2019A results |
|||
|---|---|---|---|---|---|
| Fraction | Percentage | Retrieved after | Fraction | Percentage | |
| # | (%) | improvement | # | (%) | |
| z ∼ 2.2 QSOs | 15/24 | 62.5% | 11/15 | 14/21 | 66.6% |
| z ∼1.5 QSOs | 4/24 | 16.7% | 4/15 | 4/21 | 19.0% |
| z ∼2.8 QSOs | – | – | – | 1/21 | 4.8% |
| Stars | 4/24 | 16.7% | 0/15 | 1/21 | 4.8% |
| Low-z Galaxies | 1/24 | 4.1% | 0/15 | 1/21 | 4.8% |
Notes. Targets are divided into z ∼ 2.2 QSOs and four contaminant species. Among these, z ∼ 2.76 QSOs are only present in the GTC2019A results. All targets except those confirmed as stars are genuine J0395 NB emitters due to, respectively: Lyα, CIV, Lyβ, and [OIII] emission lines. The contamination from blue stars in GTC2019A significantly dropped to ≲5% (from ∼17% in GTC2018A results), mainly due to the cross-match with Gaia DR2 data.
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.