Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...94..517m&link_type=abstract
The Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 94, no. 2, p. 517-550
Astronomy and Astrophysics
Astronomy
36
Active Galactic Nuclei, Astronomical Catalogs, Energy Spectra, X Ray Astronomy, Absorption Spectra, Bl Lacertae Objects, Exosat Satellite, Power Spectra, Quasars, Seyfert Galaxies, Tables (Data)
Scientific paper
This paper presents a catalog of high-energy spectra (E is greater than or equal to 0.01 keV) of active galactic nuclei (AGNs). The catalog contains 209 objects (140 Seyfert galaxies, 65 quasars, and 4 objects otherwise classified), for a total of 1030 spectra. Most of the data have been collected from the literature over a period spanning more than 20 yr starting from the early 1970s up to the end of 1992. For a numbner of objects (17), EXOSAT/ME data have been extracted and analyzed, and the 27 spectra obtained have been added to the database. For each object we report individual observation spectral fit parameters using a power-law model corrected for cold gas absorption along the line of sight (photon index, 1 keV intensity and hydrogen column density), plus other relevant data. It is hoped that this database can become a useful tool for the study of the AGN phenomenon in its various aspects.
Bassani Loredana
Caroli Ezio
Malaguti Giuseppe
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