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arXiv · 1912.05614

The Million Quasars (Milliquas) Catalogue, v6.4

Eric W. Flesch
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Abstract

Announcing the release v6.4 of the Milliquas (Million Quasars) quasar catalogue which presents all published quasars to 11 December 2019, including SDSS-DR16. Its totals are 757,991 type-I QSOs/AGN and approx 1.1M high-confidence (80%+ likelihood) quasar candidates from SDSS-based & AllWISE photometric quasar catalogs, plus all-sky radio/X-ray associated candidates available only here. Type-II and Bl Lac objects are also included, plus candidates/galaxies with double radio lobes (so calculated), bringing the total count to 1,968,377. Gaia-DR2 astrometry is given for most objects. The catalogue is available on its home page and on NASA HEASARC.

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Eric W. Flesch. 2019-12-11. The Million Quasars (Milliquas) Catalogue, v6.4. https://arxiv.org/abs/1912.05614

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