VizieR Online Data Catalog: Large Quasar Astrometric Catalogue 4, LQAC-4 (Gattano+, 2018)
Abstract
The Large Quasar Astrometric Catalogue is a compilation of the large majority of all the quasars recorded so far. Within the catalogue, we record their best coordinates and substansial information concerning their physical properties. The 4th release, LQAC-4, contains 443 725 objects (37.82% larger than LQAC-3) and 56.13% has been cross-matched with Gaia-DR1.
(1 data file).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- March 2018
- DOI:
- Bibcode:
- 2018yCat..36140140G
- Keywords:
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- Combined data;
- Cross identifications;
- Active gal. nuclei;
- Positional data;
- Photometry: UBVRIJKLMNH;
- Photometry: millimetric/submm;
- Redshifts;
- Magnitudes: absolute;
- Morphology