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The spectra of narrow-line Seyfert 1 galaxies
Abstract
Measurements are presented of a group of active galactic nuclei with all the properties of Seyfert 1 or 1.5 galaxies, but with unusually narrow H I lines. They include Mrk 42, 359, and 1239 as well as Mrk 493, 766, 783, and 1126. One other somewhat similar object, Mrk 1388, is also included in the discussion. For these objects, narrow-line widths and intensities of the emission lines are discussed. Overall, these narrow-line Seyfert 1 galaxies show a wide variety of deviations from the properties of typical Seyfert 1 objects. They clearly demonstrate that the Seyfert phenomenon is not a simple one-parameter effect.
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Citations
Cited by
Phenomenology of Broad Emission Lines in Active Galactic Nuclei
Sulentic, J. W., Marziani, P., & Dultzin-Hacyan, D. (2000) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.38.1.521 · Cited by 438
The diversity of quasars unified by accretion and orientation
Shen, Y., & Ho, L. C. (2014) · Nature · doi:10.1038/nature13712 · Cited by 373
THE SLOAN DIGITAL SKY SURVEY REVERBERATION MAPPING PROJECT: TECHNICAL OVERVIEW
Shen, Y., Brandt, W. N., Dawson, K. S., Hall, P. B., McGreer, I. D., Anderson, S. F., Chen, Y., Denney, K. D., Eftekharzadeh, S., Fan, X., et al. (2014) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/216/1/4 · Cited by 210
Metadata
- Authors
- Osterbrock, D. E., & Pogge, R. W.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1985-10
- Volume
- 297
- Pages
- 166
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2065603345
- Cited by
- 883
- References
- 0
- FWCI
- 0.64
- Type
- journal article
- Language
- en
- Open access
- closed
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- Osterbrock, D. E., & Pogge, R. W. (1985). The spectra of narrow-line Seyfert 1 galaxies. The Astrophysical Journal. https://doi.org/10.1086/163513
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