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A Statistical Study of Rest-frame Optical Emission Properties in Luminous Quasars at 2.0 < z < 2.5

D. H. McIntosh·M. J. Rieke·H. -W. Rix·C. B. Foltz·R. J. Weymann
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Abstract

We have obtained H-band spectra of 32 luminous quasars at 2.0 95%) differences between the rest-frame optical emission line properties of the BALQSO and nonBALQSO subsamples. This result is consistent with the view that all RQQs have broad-absorption-line clouds with a small (~10-20%) covering factor and that differences between the two types are merely a function of viewing angle and covering factor. (4) We report a previously unknown luminosity and/or redshift dependence of the narrow-line-region velocity width over the range 0<z<2.5, such that emission line widths increase with increasing luminosity. Furthermore, we find a ``Baldwin Effect'' for the [O III]5007 line in the RQQ-only sample over this same range in redshifts.

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D. H. McIntosh, M. J. Rieke, H. -W. Rix, C. B. Foltz, R. J. Weymann. 1998-10-19. A Statistical Study of Rest-frame Optical Emission Properties in Luminous Quasars at 2.0 < z < 2.5. https://doi.org/10.1086/306936

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