Active galactic nuclei
- 1 April 1991
- journal article
- Published by IOP Publishing in Reports on Progress in Physics
- Vol. 54 (4), 579-633
- https://doi.org/10.1088/0034-4885/54/4/002
Abstract
Our current knowledge of active galactic nuclei is reviewed. The importance of observational data taken over a wide range of frequencies, from radio and infrared through optical and ultraviolet to X-rays and gamma -rays, is emphasized. Important overall principles include the continuity from quasars and QSOs through Seyfert and radiogalaxies to low-luminosity LINERs, the importance of considering roughly cylindrically symmetric (rather than spherically symmetric) structures, and that the various regions generally have different axes and planes of symmetry, and are often warped.Keywords
This publication has 100 references indexed in Scilit:
- A statistical study of companions to Seyfert galaxiesThe Astronomical Journal, 1988
- The far-infrared properties of optically selected emission-line galaxiesThe Astronomical Journal, 1988
- Evidence for a supermassive black hole in the nucleus of M31The Astrophysical Journal, 1988
- Stellar dynamics in the nuclei of M31 and M32 - Evidence for massive black holes?The Astrophysical Journal, 1988
- On the origin of the infrared and X-ray continua of active galactic nucleiThe Astrophysical Journal, 1986
- Limits of X-ray variability in active galactic nucleiNature, 1986
- QSO evolution in the interaction modelThe Astronomical Journal, 1985
- The effects of interactions on spiral galaxies. I - Nuclear activity and star formationThe Astronomical Journal, 1985
- The formation of emission lines in quasars and Seyfert nucleiThe Astrophysical Journal, 1981
- Nuclear Emission in Spiral Nebulae.The Astrophysical Journal, 1943