Table 2.
Number of quasars present in each individual catalogue of the LQAC-5 compilation with the number of quasars in common with the Gaia DR1 and DR2 catalogues, with the corresponding percentage.
| Name | Ref. | Flag | Nb. | Nb. in DR1 | % in DR1 | Nb. in DR2 | % in DR2 |
|---|---|---|---|---|---|---|---|
| ICRF2 | Fey et al. (2015) | A | 3414 | 2314 | 67.78 | 2624 | 76.86 |
| VLBA | Found in RFC 2015d (1) | B | 7212 | 4287 | 59.44 | 4873 | 67.57 |
| VLA | Found in VLA calibrator manual (2) | C | 1858 | 1228 | 66.09 | 1412 | 75.99 |
| JVAS | Patnaik et al. (1992) | D | 2118 (800) | 1373 | 64.83 | 1572 | 74.22 |
| + Browne et al. (1998) | (781) | ||||||
| SDSS | Pâris et al. (2018) | E | 548206 | (3)218698 | (3)56.82 | 368149 | 67.15 |
| 2QZ | Croom et al. (2004) | F | 23654 | 18072 | 76.40 | 22180 | 93.77 |
| FIRST | Becker et al. (1995) | H | 969 | 909 | 93.81 | 949 | 97.94 |
| HB | Hewitt & Burbidge (1993) | I | 6720 | 5991 | 89.15 | 6385 | 95.01 |
| 2MASS | Cutri et al. (2003) | J | 21882 | 20338 | 92.94 | 21391 | 97.76 |
| GSC2.3 | Lasker et al. (2008) | K | 144496 | 123012 | 85.13 | 137967 | 95.48 |
| B1.0 | Monet et al. (2003) | L | 139177 | 121446 | 87.26 | 135101 | 97.07 |
| VV | Véron-Cetty & Véron (2010) | M | 14506 (4) | 4180 | 28.82 | 4696 | 32.38 |
Notes. (1)Publicly available at http://alt.astrogeo.org/rfc/. (2)Publicly available at http://www.vla.nrao.edu/astro/calib/manual/index.shtml. (3)The 218 698 objects and the corresponding percentage are the results of the crossmatches between the 384 834 SDSS DR12Q objects of the LQAC-4 with the DR1. (4)These 14 506 objects are those from Véron-Cetty & Véron (2010) which do not belong to any of the catalogues with flags “A” to “I”.
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