A search for electron-scattered wings in H-alpha in Seyfert-1 galaxies

Details A search for electron-scattered wings in H-alpha in Seyfert-1 galaxies A search for electron-scattered wings in H-alpha in Seyfert-1 galaxies

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...211..318v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 211, no. 2, March 1989, p. 318-323.

Astronomy and Astrophysics

Astrophysics

4

Galactic Radiation, H Alpha Line, Seyfert Galaxies, Astronomical Spectroscopy, Electron Scattering, Line Spectra, Optical Thickness, Spectral Line Width

Scientific paper

Spectra were obtained of a dozen bright Seyfert-1 galaxies to search for the presence of ultrabroad wings in H-alpha caused by electron scattering in the hypothetical hot intercloud medium. The spectra, which covered the wavelength range from 5300 A to 8750 A, were carefully calibrated to obtain the accurate continuum shape. In no case ultrabroad wings of the type expected from electron scattering were found, although significantly broader wings are detected than in previous data. Synthesized spectra were used to estimate the sensitivity of the survey for electron-scattered wings.

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