Results 21 to 30 of about 23,272 (235)

Gamma-Ray Bursts and Radio Loud Active Galactic Nuclei [PDF]

open access: greenAIP Conference Proceedings, 2004
8 pages, 2 figures invited talk at the Symposium: "Plasmas in the Laboratory and in the Universe: new insights and new challenges", September 16-19, 2003, Como ...
G. Ghisellini
openaire   +4 more sources

Galaxy Evolution in the Radio Band: The Role of Star-forming Galaxies and Active Galactic Nuclei [PDF]

open access: bronze, 2017
We investigate the astrophysics of radio-emitting star-forming galaxies and active galactic nuclei (AGNs) and elucidate their statistical properties in the radio band, including luminosity functions, redshift distributions, and number counts at sub-mJy ...
C. Mancuso   +8 more
openalex   +3 more sources

A high-frequency radio survey of low-luminosity active galactic nuclei [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2005
15 pages, 5 figures.
Akihiro Doi   +4 more
openaire   +4 more sources

The jet paths of radio active galactic nuclei and their cluster weather [PDF]

open access: yesAstronomy & Astrophysics
We studied bent radio sources within X-ray galaxy groups in the COSMOS and XMM-LSS fields. The radio data were obtained from the MeerKAT International GHz Tiered Extragalactic Explorations data release 1 (MIGHTEE-DR1) at 1.2-1.3 GHz, with angular resolutions of 8.9" and 5", and median noise levels of rms_ med ∼ = 3.5 and 5.5 μJy/beam.
Vardoulaki, E.   +23 more
openaire   +2 more sources

The role of environment in the observed Fundamental Plane of radio active galactic nuclei [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
The optical Fundamental Plane of black hole activity relates radio continuum luminosity of Active Galactic Nuclei to [O III] luminosity and black hole mass. We examine the environments of low redshift ($z<0.2$) radio-selected AGN, quantified through galaxy clustering, and find that halo mass provides similar mass scalings to black hole mass in the ...
S. Shabala
openaire   +4 more sources

A 3.5 mm POLARIMETRIC SURVEY OF RADIO-LOUD ACTIVE GALACTIC NUCLEI [PDF]

open access: bronzeThe Astrophysical Journal Supplement Series, 2010
Published in the Astrophysical Journal Supplement Series.
Iván Agudo   +4 more
openaire   +4 more sources

Fast radio bursts as probes of feedback from active galactic nuclei [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society: Letters, 2022
ABSTRACT Fast radio bursts (FRBs) are a promising tool for studying the low-density universe as their dispersion measures (DM) are extremely sensitive probes of electron column density. Active galactic nuclei (AGN) inject energy into the intergalactic medium, affecting the DM and their scatter. To determine the effectiveness of FRBs as a
Adam J Batten   +5 more
openaire   +5 more sources

Low-luminosity active galactic nuclei: are they UV faint and radio loud? [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2007
Low-luminosity AGNs are perceived to be radio loud and devoid of a ``big blue bump'', indicating a transition from a radiatively efficient, geometrically thin, accretion disc in high-luminosity AGNs, to a geometrically thick, radiatively inefficient accretion flow at low luminosities and accretion rates.
Dan Maoz
openaire   +5 more sources

Monitoring Of Jets in Active Galactic Nuclei with VLBA Experiments. XVIII. Kinematics and Inner Jet Evolution of Bright Radio-loud Active Galaxies [PDF]

open access: yesAstrophysical Journal, 2021
We have analyzed the parsec-scale jet kinematics of 447 bright radio-loud active active galactic nuclei (AGN), based on 15 GHz Very Long Baseline Array (VLBA) data obtained between 1994 August 31 and 2019 August 4.
M. Lister   +6 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy