Near-infrared spectroscopy of a nitrogen-loud quasar SDSS J1707+6443

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Table 2

Measured spectral features.

Line ID	Center wavelength	EW_rest	Line flux	FWHM^a	FWHM^b
	[Å]	[Å]	[10^-17 erg s^-1 cm^-2]	[Å]	[km s^-1]

[Ne v]λ3426	—	—	< 12.3^c	—	—
[O ii]λ3727	—	—	< 10.0^c	—	—
[Ne iii]λ3869	16117.5	4.9 ± 0.2	83.3 ± 3.7	54.5 ± 6.5	866 ± 103
Hβ_narrow	20245.7	4.1 ± 0.2	51.8 ± 2.3	55.3 ± 8.4	627 ± 95
Hβ_broad	20267.1	49.3 ± 0.5	628.6 ± 5.9	379.9 ± 67.8	5595 ± 999
[O iii]λ4959	20653.8	5.8 ± 0.1	72.5 ± 1.7	56.4 ± 8.6	627 ± 96
[O iii]λ5007	20853.7	17.7 ± 0.1	217.9 ± 1.7	57.0 ± 8.7	627 ± 96

Notes.

^(a)

Measured emission-line width before the correction for the instrumental broadening;

^(b)

emission-line velocity width after the correction for the instrumental broadening;

^(c)

for the undetected lines, 3σ upper-limit fluxes are given.

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