A catalogue of quasars and active nuclei: 13th edition

Astronomy and Astrophysics – Astrophysics

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Quasars: General, Galaxies: Seyfert, Bl Lacertae Objects: General

Scientific paper

Aims: This catalogue is aimed at presenting a compilation of all known AGN in a compact and convenient form, and we hope that it will be useful to all workers in this field. Methods: Like the twelfth edition, it includes position and redshift, as well as photometry (U, B, V) and 6 cm and 20 cm flux densities, when available. Results: The present version contains 133 336 quasars, 1 374 BL Lac objects, and 34 231 active galaxies (including 16 517 Seyfert 1s), almost doubling the number listed in the 12th edition. We also give a list of all known lensed and double quasars.
The catalogue (Table_QSO, Table_BL, Table_AGN and Table_reject) and the list of references are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/518/A10 or at the Observatoire de Haute Provence (http://www.obs-hp.fr/catalogues/veron213/veron213.html).

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