Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implications for unified schemes from submillimetre and far-infrared
  follow-up of radio-selected samples   We extend our previous analysis which used generalized luminosity functions
(GLFs) to predict the number of quasars and galaxies in
low-radio-frequency-selected samples as a function of redshift, radio
luminosity, narrow-emission-line luminosity and type of unified scheme. Our
extended analysis incorporates the observed submillimetre (850 micron) flux
densities of radio sources, employs a new method which allows us to deal with
non detections, and focuses on the high-luminosity population. First, we
conclude that the submillimetre luminosity L_{850} of low-frequency-selected
radio sources is correlated with the bolometric luminosity L_{Bol} of their
quasar nuclei via an approximate scaling relation L_{850} \propto L_{Bol}^{0.7
\pm 0.2}. Second, we conclude that there is quantitative evidence for a
receding-torus-like physical process for the high-luminosity population within
a two-population unified scheme for radio sources; this evidence comes from the
fact that radio quasars are brighter in both narrow emission lines and
submillimetre luminosity than radio galaxies matched in radio luminosity and
redshift. Third, we note that the combination of a receding-torus-like scheme
and the assumption that the observed submillimetre emission is dominated by
quasar-heated dust yields a scaling relation L_{850} \propto L_{Bol}^{0.5}
which is within the errors of that determined here for radio-selected quasars,
and consistent with that inferred for radio-quiet quasars by Willott, Rawlings
& Grimes (2003).

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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: nucl-ex