Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apjs...72..471d&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 72, March 1990, p. 471-550.
Astronomy and Astrophysics
Astronomy
48
Active Galactic Nuclei, Astronomical Catalogs, Bl Lacertae Objects, Quasars, Seyfert Galaxies, X Ray Astronomy, Active Galaxies, Heao 1, Tables (Data)
Scientific paper
X-ray fluxes or upper limits in the 2-10 keV energy band from the HEAO 1 A-2 experiment are given for well-defined samples of QSOs and of Seyfert galaxies of types 1, 1.5 and 2, and for a list of BL Lac objects (334 sources in total). All on-orbit X-ray measurements of these objects published between 1976 and 1986 from other experiments have also been cataloged.
Boldt Elihu A.
de Zotti Gainfranco
della Ceca Roberto
Marshall Eliot
Palumbo Giorgio G. C.
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