The H beta emission line profile of Arakelian 120.
Abstract
A high-quality (S/N in the range from 30 to 100), high-resolution (approximately 1.8 A) spectrum of the photometrically and spectroscopically variable Seyfert 1 galaxy Arakelian 120 has been obtained in the wavelength region including H-beta. The observed H-beta line profile can be considered as a benchmark for future line profile studies of this interesting object. The origin of the extended red wing of H-beta is discussed.
- Publication:
-
The Astronomical Journal
- Pub Date:
- December 1983
- DOI:
- 10.1086/113462
- Bibcode:
- 1983AJ.....88.1702F
- Keywords:
-
- Emission Spectra;
- H Beta Line;
- Seyfert Galaxies;
- Spectral Line Width;
- Continuous Spectra;
- Data Simulation;
- Forbidden Bands;
- Iron;
- Astronomy