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Fig. 1


Near-infrared spectra of N-loud quasars obtained in our IRCS and SOFI runs, adopting the two-pixel binning in the wavelength direction. Gray dotted lines show the wavelengths of some rest-frame optical emission lines, i.e., [Ne v]λ3426, [O ii]λ3727, [Ne iii]λ3869, Hβ, [O iii]λ4959, and [O iii]λ5007 lines, expected from redshifts given in Shen et al. (2008).

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