Quasar Complex Spectral Features In The 1600 -- 2250 Angstroms Range

Details Quasar Complex Spectral Features In The 1600 -- 2250 Angstroms Range Quasar Complex Spectral Features In The 1600 -- 2250 Angstroms Range

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19312204l&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #122.04; Bulletin of the American Astronomical Society, Vol. 31, p.664

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We have carefully investigated varied, complex emission features between 1600 Angstroms and 2250 Angstroms in the high-S/N, high-Z quasar spectra previously published by Weymann et al. (1991, Ap.J., vol. 373, p. 23). Our work has three main purposes: 1) to identify all emission (e.g., Fe II and Fe III multiplet lines), 2) to search for emission from stable isotopes of other iron-peak elements (e.g., Ni II and Ni III) for comparison with abundances in the Crab Nebula, and 3) to deblend and measure He II λ 1640 as accurately as possible. We present nine, exceptionally rich spectra with line identifications and measurements. Implications of nickel emission and He II λ 1640 measurements are discussed.

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