High-Energy Spectra of Active Galactic Nuclei. I. The Catalog
Abstract
This paper presents a catalog of high-energy spectra (E >= 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 number of objects (17), EXOSAT/ME data have been extracted and analysed, 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.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- October 1994
- DOI:
- 10.1086/192081
- Bibcode:
- 1994ApJS...94..517M
- Keywords:
-
- Active Galactic Nuclei;
- Astronomical Catalogs;
- Energy Spectra;
- X Ray Astronomy;
- Absorption Spectra;
- Bl Lacertae Objects;
- Exosat Satellite;
- Power Spectra;
- Quasars;
- Seyfert Galaxies;
- Tables (Data);
- Astrophysics;
- CATALOGS;
- GALAXIES: ACTIVE;
- GALAXIES: SEYFERT;
- GALAXIES: QUASARS: GENERAL;
- X-RAYS: GALAXIES