Results 41 to 50 of about 133,360 (273)

Radio and X-ray Observations of the Restarted Radio Galaxy in the Galaxy Cluster CL 0838+1948

open access: yesGalaxies, 2021
We present VLA Low-band Ionosphere and Transient Experiment (VLITE) 338 MHz observations of the galaxy cluster CL 0838+1948. We combine the VLITE data with Giant Metrewave Radio Telescope 610 MHz observations and survey data.
Simona Giacintucci   +4 more
doaj   +1 more source

Symmetry in Radio Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1982
One of the most striking properties of the radio galaxies is the predominance of a symmetrical double lobed structure. Any model to explain the energy release and collimation in radio galaxies must be able to produce this symmetry as the normal morphology.
openaire   +2 more sources

Gas Outflows in Radio Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 2004
We present a summary of our recent results on gas outflows in radio galaxies. Fast outflows (up to 2000 km s−1) have been detected both in ionized and neutral gas. The latter is particularly surprising as it shows that, despite the extremely energetic phenomena occurring near an AGN, some of the outflowing gas remains, or becomes again, neutral.
Clive Tadhunter   +4 more
openaire   +4 more sources

Distant radio galaxies and their environments [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2008
82 pages, 20 figures. Accepted for publication in Astronomy and Astrophysics Reviews. Full resolution version available from http://www.springerlink.com/content/17123p4h8x6g0081/
Carlos De Breuck, George K. Miley
openaire   +3 more sources

Clustering of radio galaxies and quasars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
12 pages, 13 Figures, submitted to ...
E. Donoso   +4 more
openaire   +3 more sources

An Extended Lyα Outflow from a Radio Galaxy at z = 3.7?

open access: yesThe Astrophysical Journal Letters, 2023
Spatially resolved observations of active galactic nuclei (AGN) host galaxies undergoing feedback processes are one of the most relevant avenues through which galactic evolution can be studied, given the long-lasting effects AGN feedback has on gas ...
Miguel Coloma Puga   +7 more
doaj   +1 more source

Radio galaxy feedback in X-ray selected groups from COSMOS: the effect on the ICM [PDF]

open access: yes, 2010
We quantify the importance of the mechanical energy released by radio-galaxies inside galaxy groups. We use scaling relations to estimate the mechanical energy released by 16 radio-AGN located inside X-ray detected galaxy groups in the COSMOS field.
A. Finoguenov   +44 more
core   +4 more sources

Radio Galaxies—The TeV Challenge [PDF]

open access: yesGalaxies, 2018
Over the past decade, our knowledge of the γ -ray sky has been revolutionized by ground- and space-based observatories by detecting photons up to several hundreds of tera-electron volt (TeV) energies. A major population of the γ -ray bright objects are active galactic nuclei (AGN) with their relativistic jets pointed along our line-of-sight ...
openaire   +5 more sources

Probing the evolution of galaxy clusters using SZ effect and non-thermal emission: First results from A1413 [PDF]

open access: yesEPJ Web of Conferences
Mass is the most fundamental property of galaxy clusters. However, measuring it is still a challenge. Calibrating mass from intracluster medium observables such as the Sunyaev-Zel’dovich (SZ) effect is subject to uncertainty and biases because of the ...
Pachchigar M., Perrott Y., Parashar T.
doaj   +1 more source

A Comprehensive Observational Study of the FRB 121102 Persistent Radio Source

open access: yesThe Astrophysical Journal, 2023
FRB 121102 is the first fast radio burst to be spatially associated with a persistent radio source (QRS 121102), the nature of which remains unknown. We constrain the physical size of QRS 121102 by measuring its flux-density variability with the VLA from
Ge Chen, Vikram Ravi, Gregg W. Hallinan
doaj   +1 more source

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