Astrophysics of Gaseous Nebulae and Active Galactic Nuclei
- D. Osterbrock, G. Ferland
- Physics
- 1989
Preface Preface to First Edition General Introduction Photoionization Equilibrium Thermal Equilibrium Calculation of Emitted Spectrum Comparison of Theory with Observations Internal Dynamics of…
Astrophysics of Gaseous Nebulae
- D. Osterbrock, T. Gull
- Physics
- 1 April 1976
Active Galactic Nuclei a
- D. Osterbrock
- Physics
- 1 March 1984
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…
Spectral Classification of Emission-Line Galaxies
- D. Osterbrock, S. Veilleux
- Physics
- 1 November 1986
A revised method of classification of narrow-line active galaxies and H II region-like galaxies is proposed. It involves the line ratios which take full advantage of the physical distinction between…
Seyfert galaxies with weak broad H alpha emission lines
- D. Osterbrock
- Physics
- 1 October 1981
The spectra of narrow-line Seyfert 1 galaxies
- D. Osterbrock, R. Pogge
- Physics
- 1 October 1985
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…
Spectrophotometry of Seyfert 1 galaxies.
- D. Osterbrock
- Physics
- 1 August 1977
NIGHT-SKY HIGH-RESOLUTION SPECTRAL ATLAS OF OH AND O2 EMISSION LINES FOR ECHELLE SPECTROGRAPH WAVELENGTH CALIBRATION
- D. Osterbrock, J. Fulbright, A. Martel, M. Keane, S. Trager, G. Basri
- Physics, Environmental Science
- 1 March 1996
The potential of night-sky emission lines recorded on every long-exposure astronomical spectrum, for wavelength calibration, is emphasized. A high-resolution atlas, based on spectra obtained with the…
Spectroscopic Study of the CfA Sample of Seyfert Galaxies
- D. Osterbrock, A. Martel
- Physics
- 1 September 1993
High signal-to-noise ratio spectra were obtained of nearly all the Seyfert 2 galaxies in the CfA complete sample published by Huchra & Burg, and of some of the Seyfert 1's as well. Several of the…
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