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Radio-loudness Statistics of Quasars from Quaia-VLASS [PDF]
The Astrophysical Journal Supplement SeriesQuasars are objects of high interest in extragalactic astrophysics, cosmology, and astrometry. One of their useful qualities is their potential radio-loudness.
Nestor Arsenov +3 more
doaj +4 more sources
Faint radio-loud quasars: clues to their evolution [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 11 pages, 7 figures, accepted for publication in ...
M Magliocchetti +2 more
exaly +4 more sources
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 +1 more
exaly +3 more sources
X-ray properties of high-redshift Radio Loud and Radio Quiet Quasars observed by Chandra [PDF]
Journal of High Energy Astrophysics, 2022 F Shaban, Aneta Siemiginowska, A Ali
exaly +2 more sources
No strong radio absorption detected in the low-frequency spectra of radio-loud quasars at z > 5.6
Astronomy and Astrophysics, 2023 A Saxena, H T Intema, J R Callingham
exaly +2 more sources
The Two-component Circumgalactic Medium Emission around z ∼ 2 Radio-loud Quasars
The Astrophysical JournalWe present Ly α , He ii , and C iv observations of seven z ∼ 2 radio-loud quasars observed using the Keck Cosmic Web Imager and compare it to observed radio jet emission using archival Very Large Array and Atacama Large Millimeter/submillimeter Array ...
Sanchit Sabhlok +9 more
doaj +2 more sources
Astronomische Nachrichten, Volume 344, Issue 4, May 2023., 2023 Abstract The non‐linear correlation between the UV and X‐ray emission observed in active galactic nuclei remains a puzzling question that challenges accretion models. While the UV emission originates from the cold disk, the X‐ray emission is emitted by a hot corona whose physical characteristics and geometry are still highly debated.
S. Barnier +3 more
wiley +1 more source
Optical and UV properties of a radio‐loud and a radio‐quiet Population A quasar at high redshift
Astronomische Nachrichten, Volume 343, Issue 1-2, January-February 2022., 2022 Abstract Different properties of quasars may be observed and analyzed through the many ranges of the electromagnetic spectrum. Pioneering studies showed that an “H‐R diagram” for quasars was needed to organize these data, and that more than two dimensions were necessary: a four‐dimensional Eigenvector (4DE1) parameter space was proposed. The 4DE1 makes
Alice Deconto‐Machado +4 more
wiley +1 more source
Peaked sources and narrow‐line Seyfert 1s: A love story
Astronomische Nachrichten, Volume 342, Issue 9-10, Page 1066-1070, November-December 2021., 2021 Abstract The first similarities between peaked sources (PS) and narrow‐line Seyfert 1 (NLS1) galaxies were noticed already 20 years ago. Nowadays, it is known that several sources can share both classifications, and that part of the parent population of γ‐ray emitting NLS1s could be hiding among PS.
Marco Berton, Emilia Järvelä
wiley +1 more source
The Dynamics and Energetics of Remnant and Restarting RLAGN
Galaxies, 2023 In this article, I review past, current, and future advances on the study of radio-loud AGN (RLAGN; radio-loud quasars and radio galaxies) lifecycles exclusively in the remnant and restarting phases.
Vijay H. Mahatma
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