ESO 103-G35 - A new Seyfert galaxy and possible X-ray source

Details ESO 103-G35 - A new Seyfert galaxy and possible X-ray source ESO 103-G35 - A new Seyfert galaxy and possible X-ray source

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....76l..14p&link_type=abstract

Astronomy and Astrophysics, vol. 76, no. 3, July 1979, p. L14-L17.

Astronomy and Astrophysics

Astronomy

25

Seyfert Galaxies, Stellar Spectrophotometry, X Ray Sources, Emission Spectra, H Alpha Line, H Beta Line, Heao 1, Infrared Spectra, X Ray Astronomy

Scientific paper

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.

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