All Figures

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig1.eps} \end{figure}$ Figure 1: The distribution of [O III] emission-line luminosity for 134 high-excitation narrow-line galaxies (open area), 52 quasars (grey area) and 20 weak quasars (hatched area) in the combined 3CRR, 6CE and 7CRS samples.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig2.eps} \end{figure}$ Figure 2: The distribution of radio luminosity at 151 MHz for 134 HEGs (open area), 52 quasars (grey area) and 20 WQs (hatched area) in the combined sample.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig3.eps} \end{figure}$ Figure 3: Mean projected linear sizes of 206 FRII radio sources are calculated for three equal subsamples binned by [O III] emission-line luminosity. Quasars, weak quasars and HEGs are denoted by "Q'', "W'' and "H'' respectively.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig4.eps} \end{figure}$ Figure 4: The torus half opening angle calculated in three equal subsamples binned by [O III] emission-line luminosity (see Table 2). Critical angles ${\theta }_{\rm cs}$ estimated by the mean linear sizes of radio galaxies and quasars (Eq. (7)) are marked by filled circles, and open circles denote the critical angles ${\theta }_{\rm cf}$ calculated by the fraction of quasars (Eq. (1)). A Fisher test rejects the null hypothesis that ${\theta }_{\rm cs}$ are equal at 97.4% confidence level. The filled circles are offset horizontally for illustrative purposes. $1\sigma$ error bars are presented.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.5cm]{2341fig5.eps} \end{figure}$ Figure 5: The half opening angle of the torus calculated in three equal subsamples binned by radio luminosity. Designations are the same as in Fig. 4. The null hypothesis of equal critical angles ${\theta }_{\rm cs}$ (filled circles) can not be rejected (66%).
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig6.eps} \end{figure}$ Figure 6: Functional relation between the half opening angle of the torus and its standard error is presented for Eq. (8) (solid line) and Eq. (12) (dotted line).
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig1.eps} \end{figure}$	Figure 1: The distribution of [O III] emission-line luminosity for 134 high-excitation narrow-line galaxies (open area), 52 quasars (grey area) and 20 weak quasars (hatched area) in the combined 3CRR, 6CE and 7CRS samples.
Open with DEXTER

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig2.eps} \end{figure}$	Figure 2: The distribution of radio luminosity at 151 MHz for 134 HEGs (open area), 52 quasars (grey area) and 20 WQs (hatched area) in the combined sample.
Open with DEXTER

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig3.eps} \end{figure}$	Figure 3: Mean projected linear sizes of 206 FRII radio sources are calculated for three equal subsamples binned by [O III] emission-line luminosity. Quasars, weak quasars and HEGs are denoted by "Q'', "W'' and "H'' respectively.
Open with DEXTER

$\begin{figure} \par\includegraphics[angle=-90,width=8.5cm]{2341fig5.eps} \end{figure}$	Figure 5: The half opening angle of the torus calculated in three equal subsamples binned by radio luminosity. Designations are the same as in Fig. 4. The null hypothesis of equal critical angles ${\theta }_{\rm cs}$ (filled circles) can not be rejected (66%).
Open with DEXTER

$\begin{figure} \par\includegraphics[angle=-90,width=8.2cm]{2341fig6.eps} \end{figure}$	Figure 6: Functional relation between the half opening angle of the torus and its standard error is presented for Eq. (8) (solid line) and Eq. (12) (dotted line).
Open with DEXTER