Spectral observations of the quasar S5 0014+81. an analysis of the emission-line spectrum.
Abstract
The 6-m telescope of the USSR Academy of Sciences was used to obtain the spectrum of the quasar S5 0014 + 81 in the 4500-7000 A range (10-A resolution). On the basis of six emission lines, a redshift of 3.382 + or - 0.003 was determined. From a Lyman discontinuity value of about 0.5, the line-of-sight column density of neutral hydrogen was estimated to be 10 to the 17th/sq cm. The spectral features are analyzed and possible explanations for the high luminosity of the quasar are considered.
- Publication:
-
Astronomicheskii Zhurnal
- Pub Date:
- April 1987
- Bibcode:
- 1987AZh....64..262V
- Keywords:
-
- Astronomical Spectroscopy;
- Emission Spectra;
- Quasars;
- Gas Density;
- Hydrogen Clouds;
- Line Spectra;
- Neutral Gases;
- Red Shift;
- Astrophysics