Table 1.
Details on the quasars used in this work.
| SDSS name | Thing ID | Obj ID | RA (deg) | Dec (deg) | zem | Nobs |
|---|---|---|---|---|---|---|
| J022954.42−005622.5 | 74944092 | 1237666406848200831 | 37.48 | −0.94 | 2.3107 | 6 |
| J023308.31−002605.0 | 82655414 | 1237657070090125331 | 38.28 | −0.44 | 2.4965 | 7 |
| J022836.08+000939.2 | 97003678 | 1237663784213676145 | 37.15 | 0.16 | 2.6324 | 8 |
| J023259.60+004801.7 | 110619413 | 1237657587096813739 | 38.25 | 0.80 | 2.2272 | 6 |
Notes. The first three columns give the quasar name, its unique identifier in the SDSS DR13 (“Thing ID”), and in the SDSS photometric database (“Obj ID”). The following three columns give the quasar’s right ascension and declination (in degrees) and the quasar’s emission redshift. The final column gives the number of observations which satisfy the criteria described in Sect. 3.
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