The Spectral Energy Distribution and Fe II Emission in Intermediate-Redshift Narrow-line Seyfert 1 Galaxies

Details The Spectral Energy Distribution and Fe II Emission in Intermediate-Redshift Narrow-line Seyfert 1 Galaxies The Spectral Energy Distribution and Fe II Emission in Intermediate-Redshift Narrow-line Seyfert 1 Galaxies

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1749l&link_type=abstract

Chandra Proposal ID #06700564

Computer Science

Chandra Proposal Id #06700564

Scientific paper

In a study of a large sample of intermediate-redshift narrow-line Seyfert 1 galaxies drawn from the Sloan Digital Sky Survey, a very strong correlation between FeII equivalent width and the ratio of FeII/MgII has been found. Differences in the composite spectra compiled from each end of the correlation argue against differences in abundances and for differences in gas properties. We hypothesize that strong FeII emission arises from a steep, UV-dominant spectral energy distribution that preferentially excites low-ionization line emission. We propose to test this hypothesis using short Chandra observations of 6 objects from each end of the correlation.

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