Dark and bright sides of the Broad Line Region clouds as seen in the FeII emission of SDSS RM 102

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Table 7.

UV Fe II line ratios measured in the spectrum of RM 102.

Name	Ratio	Value
(1)	(2)	(3)
Spike-to-spike	$\frac{{Spike}_{2}}{{Spike}_{1}}$ $\frac {{\rm Spike}_2}{{\rm Spike}_1}$	0.709±0.369
Spike-to-gap	$\frac{{Spike}_{1} + {Spike}_{2}}{Gap}$ $\frac {{\rm Spike}_1 + {\rm Spike}_2}{\rm Gap}$	1.438±0.647
R₂₈₀₀	$\frac{IZw 1 b}{UV 63}$ $\frac {{\rm IZw1b}}{\rm UV63}$	0.913±0.703
R₂₉₀₀	$\frac{IZw 1 b + UV 61}{UV 60 + UV 78}$ $\frac {{\rm IZw1b} + {\rm UV61}}{{\rm UV60} + {\rm UV78}}$	1.175±0.494

Notes. (1) Name of the ratio. (2) Expression for the measurement of the ratio. (3) Observed value of the ratio in the spectrum of RM 102, with error.

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