Spectroscopic changes in the Seyfert galaxy NGC 3783

Details Spectroscopic changes in the Seyfert galaxy NGC 3783 Spectroscopic changes in the Seyfert galaxy NGC 3783

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.203p...1m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 203, Apr. 1983, p. 1P-4P.

Astronomy and Astrophysics

Astronomy

25

Astronomical Spectroscopy, Galactic Radiation, Seyfert Galaxies, Galactic Nuclei, H Alpha Line, Spectral Line Width

Scientific paper

The profiles of emission lines in the Seyfert galaxy NGC 3783 are analyzed and the results are compared with those found by Pelat, Alloin, and Fosbury (1981) on the basis of spectra obtained in 1976-1977. A new H-alpha emission feature is detected at a blueshift of 1630 km/s relative to the systemic velocity. No evidence is found for forbidden line components associated with this blueshifted H-alpha component, and it is concluded that this component must originate in a region of relatively high density.

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