The line continuum luminosity ratio in active galactic nuclei - or, on the 'Baldwin effect'

Details The line continuum luminosity ratio in active galactic nuclei - or, on the 'Baldwin effect' The line continuum luminosity ratio in active galactic nuclei - or, on the 'Baldwin effect'

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...278..558m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 278, March 15, 1984, p. 558-563.

Other

141

Active Galactic Nuclei, Hydrogen, Ionization, Line Spectra, Luminosity, Active Galaxies, Continuums, X Ray Sources

Scientific paper

The luminosity dependence of the equivalent width of CIV in active galaxies, the 'Baldwin' effect, is shown to be a consequence of a luminosity dependent ionization parameter. This law also agrees with the lack of a 'Baldwin' effect in Ly alpha or other hydrogen lines. A fit to the available data gives a weak indication that the mean covering factor decreases with increasing luminosity, consistent with the inference from X-ray observations. The effects of continuum shape and density on various line ratios of interest are discussed. Previously announced in STAR as N83-35975

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