Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357..338k&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 357, July 10, 1990, p. 338-345. Research supported by IUE and Space Telesco
Astronomy and Astrophysics
Astrophysics
104
Active Galactic Nuclei, Cosmology, Quasars, Seyfert Galaxies, Ultraviolet Spectra, Iue, Lyman Alpha Radiation, Radio Spectra, Red Shift, Stellar Luminosity
Scientific paper
The paper investigates the controversial relation between the continuum luminosity and the C IV 1550 emission-line strength in the spectra of quasars, commonly referred to as the Baldwin effect, as a possible indicator of absolute luminosity. It is concluded that the Baldwin effect does represent a physical correlation between the continuum and the C IV 1550 equivalent width rather than a consequence of selection effects. In addition to the C IV results, a similar relation is found for the Lyman-alpha emission line.
Kinney Anne L.
Koratkar Anuradha P.
Rivolo A. R.
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