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Properties of Very Broad Line MgII Radio-Loud and Radio-Quiet Quasars
Galaxies, 2021 We perform an analysis of the properties of radio-loud (RL) and radio-quiet (RQ) quasars with MgII broad emission line (i-band magnitude ≤19.1 and z ≤1.9), selected from the parent sample of SDSS DR7 catalogue.
Avinanda Chakraborty +2 more
doaj +4 more sources
Radio Variability of Radio‐quiet and Radio‐loud Quasars [PDF]
The Astrophysical Journal, 2005 The majority of quasars are weak in their radio emission, with flux densities comparable to those in the optical, and energies far lower. A small fraction, about 10%, are hundreds to thousands of times stronger in the radio. Conventional wisdom holds that there are two classes of quasars, the radio quiets and radio louds, with a deficit of sources ...
Barvainis, R +4 more
core +7 more sources
The radio structure of radio-quiet quasars [PDF]
Astronomy & Astrophysics, 2006 14 pages, 15 figures, accepted for publication in A& ...
Leipski, C. +3 more
openaire +7 more sources
The Radio Properties of Radio-Quiet Quasars [PDF]
Monthly Notices of the Royal Astronomical Society, 1997 3 pages, Latex, presented at the ESO/IAC conference on `Quasar Hosts' 24-27 September 1996, (uses the LAMUPHYS macro from Springer-Verlag)
Kukula, M +3 more
openaire +7 more sources
What drives the radio slopes in radio-quiet quasars? [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 The origin of the radio emission in Radio Quiet (RQ) quasars is not established yet. Important hints can be provided by the spectral slope, and its relation to other emission properties. We compiled the highest resolution 5 and 8.4 GHz VLA observations available of the RQ optically selected PG quasars at z<0.5. We derive the 5-8.4 GHz spectral slope,
Ari Laor, Ranieri D Baldi, Ehud Behar
openaire +3 more sources
The central engines of radio-quiet quasars [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 Two rival hypotheses have been proposed for the origin of the compact radio flux observed in radio-quiet quasars (RQQs). It has been suggested that the radio emission in these objects, typically some two or three orders of magnitude less powerful than in radio-loud quasars (RLQs), represents either emission from a circumnuclear starburst or is produced
Blundell, K, Beasley, A
openaire +3 more sources
Spectroscopic Properties Of Radio Loud And Radio Quiet Quasars [PDF]
Proceedings of the International Astronomical Union, 2019 Surveys have shown radio-loud (RL) quasars constitute $10 \%$-$15 \%$ of the total quasar population and rest are radio-quiet (RQ). However, it is unknown if this radio-loud fraction (RLF) (RL quasars/Total quasars) remains consistent among different parameter spaces.
Chakraborty, Avinanda +1 more
core +6 more sources
The ultraviolet spectra of radio-loud and radio-quiet quasars [PDF]
The Astronomical Journal, 1993 The rest-frame ultraviolet spectral properties of matched samples of radio-loud, radio-moderate, and radio-quiet quasars are investigated, using quasars drawn from the Large Bright QSO Survey. We confirm the absence of spectral differences between radio-loud and radio-quiet quasars at rest-frame wavelengths longward of 1600 A, as reported by previous ...
Francis, Paul +2 more
openaire +3 more sources
Star formation in quasar hosts and the origin of radio emission in radio-quiet quasars [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Radio emission from radio-quiet quasars may be due to star formation in the quasar host galaxy, to a jet launched by the supermassive black hole, or to relativistic particles accelerated in a wide-angle radiatively-driven outflow. In this paper we examine whether radio emission from radio-quiet quasars is a byproduct of star formation in their hosts ...
Zakamska, Nadia L. +13 more
core +6 more sources
The host galaxies of luminous radio-quiet quasars [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 16 pages, 8 figures, revised version to be published in ...
Percival, W +3 more
openaire +5 more sources