Abstract
The existing X-ray spectral data for active galaxies and quasars is
reviewed. These exist mainly for type 1 Seyferts, quasars, and BL Lacs.
There is little data yet for radio galaxies, type 2 Seyferts or low
ionization nuclear emission-line regions. A variety of different
power-law slopes exist for quasar and Seyfert 1 spectra, implying that
several different emission mechanisms can make X-rays in AGN. Material
within the active nucleus causes low energy X-ray absorption, primarily
for low luminosity objects. Absorption can be used to constrain the
physical state, abundance, and geometry of this nuclear material. The
prospects for future X-ray satellite missions are outlined, with an
emphasis on high resolution spectroscopy from AXAF.
| Original language | English |
|---|---|
| Title of host publication | Astrophysics of active galaxies and quasi-stellar objects |
| Publisher | University Science Books |
| Pages | 289-331 |
| ISBN (Print) | 0935702210 |
| Publication status | Published - 31 Dec 1985 |
Keywords / Materials (for Non-textual outputs)
- Active Galaxies
- Astronomical Spectroscopy
- Galaxies
- Quasars
- Spectrum Analysis
- X Ray Astronomy
- Absorption Spectra
- Active Galactic Nuclei
- Bl Lacertae Objects
- Continuous Spectra
- Emission Spectra
- Luminosity
- Radio Galaxies
- Seyfert Galaxies
- X Ray Spectra