Other
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...291..677c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 291, April 15, 1985, p. 677-684.
Other
25
Absorption Spectra, Line Spectra, Seyfert Galaxies, Spectrophotometry, Spectrum Analysis, Stellar Spectra, Continuous Spectra, Dwarf Galaxies, Elliptical Galaxies, H Beta Line, Radiant Flux Density, Spectral Line Width
Scientific paper
It is demonstrated that in Seyfert 1 galaxy spectra in which the contribution of the host galaxy is significant, the stellar absorption features can introduce structure and asymmetries into the broad-line profiles. Spectroscopic observations through large apertures (5 or 7 arcsec) of a small sample of Seyfert 1 galaxies reveal that light from stars can contribute up to 70 percent of the total continuum flux at H-beta. It is shown that, to first order, the stellar contribution to the spectra can be removed by subtracting a suitably scaled spectrum of the dwarf elliptical galaxy M32, and it is found that the broad-line profiles become smoother and more symmetric when the stellar contribution is removed.
Crenshaw Michael D.
Peterson Bradley. M.
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