ESO 103-G35: a new Seyfert galaxy and possible X-ray source.
Abstract
By means of an objective prism plate, two emission-line galaxies have been identified within the 0.7-sq deg HEAO-A2 error box for the X-ray source H1834-653. Optical spectrophotometric observations are reported for both objects as well as the galaxy NGC 6684, which also lies near the position of H1834-653. These data show that one of the emission-line galaxies, ESO 103-G35, is a Seyfert galaxy with a high-excitation forbidden-line spectrum and weak broad emission wings at H-alpha. Further measurements of this galaxy reveal an infrared excess at wavelengths longer than 2.2 microns. The H-alpha luminosity of ESO 103-G35 is consistent with the X-ray luminosity estimated from the HEAO-A2 data, thus strengthening the likelihood of association of this galaxy with the X-ray emission.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- July 1979
- Bibcode:
- 1979A&A....76L..14P
- Keywords:
-
- Seyfert Galaxies;
- Stellar Spectrophotometry;
- X Ray Sources;
- Emission Spectra;
- H Alpha Line;
- H Beta Line;
- Heao 1;
- Infrared Spectra;
- X Ray Astronomy;
- Astrophysics;
- Infrared Photometry:Seyfert Galaxies;
- Seyfert Galaxies:Spectra;
- Seyfert Galaxies:X-Ray Sources