The X-Ray Spectrum of NGC 1068
Abstract
The first X-ray spectrum of a classical Seyfert 2 galaxy, NGC 1068, measured by the Einstein Observatory, is presented. The small soft X-ray luminosity of about 9 x 10 to the 41st ergs/s, the lack of variability, and the Compton temperature of less than 10 to the 6th K are all consistent with the model of Antonucci and Miller (1985); these authors have suggested that NGC 1068 contains a hidden Seyfert 1 nucleus seen indirectly through the electron scattering. However, the steep spectral slope (alpha = 2.0 + or - 0.3) distinguishes the NGC 1068 from the vast majority of Seyfert 1 galaxies.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1987
- DOI:
- 10.1086/184853
- Bibcode:
- 1987ApJ...315L..17M
- Keywords:
-
- Seyfert Galaxies;
- X Ray Sources;
- X Ray Spectra;
- Continuous Spectra;
- Electron Scattering;
- Galactic Nuclei;
- Ultraviolet Spectra;
- Astrophysics;
- GALAXIES: INDIVIDUAL NGC NUMBER: NGC 1068;
- GALAXIES: SEYFERT;
- GALAXIES: X-RAYS;
- X-RAYS: SPECTRA