FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2149609777> ?p ?o ?g. }

• W2149609777 endingPage "842" @default.
• W2149609777 startingPage "828" @default.
• W2149609777 abstract "We present the results of a programme of thermal-infrared imaging of 19 z∼ 1 radio galaxies from the 3CR and 3CRR (LRL) samples. We detect emission at L′ (3.8 μm) from four objects; in each case the emission is unresolved at 1-arcsec resolution. 15 radio galaxies remain undetected to sensitive limits of L′≈ 15.5. Using these data in tandem with archived HST data and near-infrared spectroscopy, we show that three of the detected ‘radio galaxies’ (3C 22, 3C 41 and 3C 65) harbour quasars reddened by AV≲ 5 mag. Correcting for this reddening, 3C 22 and 3C 41 are very similar to coeval 3C quasars, whilst 3C 65 seems unusually underluminous. The fourth radio galaxy detection (3C 265) is a more highly obscured (AV∼ 15) but otherwise typical quasar, which previously has been evident only in scattered light. We determine the fraction of dust-reddened quasars at z∼ 1 to be 28−13+25 per cent at 90 per cent confidence. On the assumption that the undetected radio galaxies harbour quasars similar to those in 3C 22, 3C 41 and 3C 265 (as seems reasonable, given their similar narrow emission line luminosities) we deduce extinctions of AV≳: 15 towards their nuclei. The contributions of reddened quasar nuclei to the total K-band light range from ∼0 per cent for the non-detections, through ∼10 per cent for 3C 265 to ∼80 per cent for 3C 22 and 3C 41. Correcting for these effects does not remove the previously reported differences between the K magnitudes of 3C and 6C radio galaxies, so contamination by reddened quasar nuclei is not a serious problem for drawing cosmological conclusions from the K−z relation for radio galaxies. We discuss these results in the context of the ‘receding torus’ model which predicts a small fraction of lightly reddened quasars in samples of high-radio-luminosity sources. We also examine the likely future importance of thermal-infrared imaging in the study of distant powerful radio sources." @default.
• W2149609777 created "2016-06-24" @default.
• W2149609777 creator A5000559800 @default.
• W2149609777 creator A5037518207 @default.
• W2149609777 creator A5063166132 @default.
• W2149609777 date "1999-07-11" @default.
• W2149609777 modified "2023-10-18" @default.
• W2149609777 title "Thermal-infrared imaging of 3C radio galaxies at z 1" @default.
• W2149609777 cites W1965568584 @default.
• W2149609777 cites W1968646907 @default.
• W2149609777 cites W1975880558 @default.
• W2149609777 cites W1979380250 @default.
• W2149609777 cites W1981183907 @default.
• W2149609777 cites W1984490614 @default.
• W2149609777 cites W1988933086 @default.
• W2149609777 cites W1992518843 @default.
• W2149609777 cites W1994122588 @default.
• W2149609777 cites W1999647896 @default.
• W2149609777 cites W2002736697 @default.
• W2149609777 cites W2005562117 @default.
• W2149609777 cites W2007864933 @default.
• W2149609777 cites W2016992663 @default.
• W2149609777 cites W2020701654 @default.
• W2149609777 cites W2022431654 @default.
• W2149609777 cites W2022437735 @default.
• W2149609777 cites W2023183630 @default.
• W2149609777 cites W2029438261 @default.
• W2149609777 cites W2029547539 @default.
• W2149609777 cites W2032521461 @default.
• W2149609777 cites W2034414292 @default.
• W2149609777 cites W2034960833 @default.
• W2149609777 cites W2035263463 @default.
• W2149609777 cites W2039269461 @default.
• W2149609777 cites W2043334334 @default.
• W2149609777 cites W2057041362 @default.
• W2149609777 cites W2057539816 @default.
• W2149609777 cites W2060357694 @default.
• W2149609777 cites W2064174537 @default.
• W2149609777 cites W2064390173 @default.
• W2149609777 cites W2065887035 @default.
• W2149609777 cites W2066800938 @default.
• W2149609777 cites W2074089766 @default.
• W2149609777 cites W2079307590 @default.
• W2149609777 cites W2079443676 @default.
• W2149609777 cites W2079552791 @default.
• W2149609777 cites W2079594222 @default.
• W2149609777 cites W2079813585 @default.
• W2149609777 cites W2080697714 @default.
• W2149609777 cites W2089167229 @default.
• W2149609777 cites W2092750450 @default.
• W2149609777 cites W2105306517 @default.
• W2149609777 cites W2126287728 @default.
• W2149609777 cites W2128549759 @default.
• W2149609777 cites W2130326422 @default.
• W2149609777 cites W2142932897 @default.
• W2149609777 cites W2148455683 @default.
• W2149609777 cites W2156912657 @default.
• W2149609777 cites W2170383861 @default.
• W2149609777 cites W2325985838 @default.
• W2149609777 cites W3098641267 @default.
• W2149609777 cites W3099689928 @default.
• W2149609777 cites W4229806770 @default.
• W2149609777 doi "https://doi.org/10.1046/j.1365-8711.1999.02582.x" @default.
• W2149609777 hasPublicationYear "1999" @default.
• W2149609777 type Work @default.
• W2149609777 sameAs 2149609777 @default.
• W2149609777 citedByCount "46" @default.
• W2149609777 countsByYear W21496097772012 @default.
• W2149609777 countsByYear W21496097772013 @default.
• W2149609777 countsByYear W21496097772014 @default.
• W2149609777 countsByYear W21496097772015 @default.
• W2149609777 countsByYear W21496097772020 @default.
• W2149609777 countsByYear W21496097772023 @default.
• W2149609777 crossrefType "journal-article" @default.
• W2149609777 hasAuthorship W2149609777A5000559800 @default.
• W2149609777 hasAuthorship W2149609777A5037518207 @default.
• W2149609777 hasAuthorship W2149609777A5063166132 @default.
• W2149609777 hasBestOaLocation W21496097771 @default.
• W2149609777 hasConcept C121332964 @default.
• W2149609777 hasConcept C1276947 @default.
• W2149609777 hasConcept C135041427 @default.
• W2149609777 hasConcept C158355884 @default.
• W2149609777 hasConcept C20249676 @default.
• W2149609777 hasConcept C43481613 @default.
• W2149609777 hasConcept C44870925 @default.
• W2149609777 hasConcept C50083752 @default.
• W2149609777 hasConcept C89108925 @default.
• W2149609777 hasConcept C98444146 @default.
• W2149609777 hasConceptScore W2149609777C121332964 @default.
• W2149609777 hasConceptScore W2149609777C1276947 @default.
• W2149609777 hasConceptScore W2149609777C135041427 @default.
• W2149609777 hasConceptScore W2149609777C158355884 @default.
• W2149609777 hasConceptScore W2149609777C20249676 @default.
• W2149609777 hasConceptScore W2149609777C43481613 @default.
• W2149609777 hasConceptScore W2149609777C44870925 @default.
• W2149609777 hasConceptScore W2149609777C50083752 @default.
• W2149609777 hasConceptScore W2149609777C89108925 @default.
• W2149609777 hasConceptScore W2149609777C98444146 @default.

• next