Results 41 to 50 of about 7,995,271 (350)

THE DYNAMIC EVOLUTION OF YOUNG EXTRAGALACTIC RADIO SOURCES [PDF]

open access: yes, 2012
The evolution of symmetric extragalactic radio sources can be characterized by four distinct growth stages of the radio luminosity versus size of the source.
T. An, W. Baan
semanticscholar   +1 more source

CENSORS: A Combined EIS-NVSS Survey Of Radio Sources. I. Sample definition, radio data and optical identifications

open access: yes, 2003
A new sample of radio sources, with the designated name CENSORS (A Combined EIS-NVSS Survey Of Radio Sources), has been defined by combining the NRAO VLA Sky Survey (NVSS) at 1.4 GHz with the ESO Imaging Survey (EIS) Patch D, a 3 by 2 degree region of ...
Allington-Smith   +72 more
core   +1 more source

Fast Radio Bursts: An Extragalactic Enigma [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2019
We summarize our understanding of millisecond radio bursts from an extragalactic population of sources. Fast radio bursts (FRBs) occur at an extraordinary rate, thousands per day over the entire sky with radiation energy densities at the source about ten
J. Cordes, S. Chatterjee
semanticscholar   +1 more source

An Examination of the Optical Substructure of Galaxy Clusters Hosting Radio Sources

open access: yes, 2013
Using radio sources from the Faint Images of the Radio Sky at Twenty-cm (FIRST) survey, and optical counterparts in the Sloan Digital Sky Survey (SDSS), we have identified a large number of galaxy clusters.
Blanton, Elizabeth L., Wing, Joshua D.
core   +1 more source

Multiband Study of Radio Sources of the RCR Catalogue with Virtual Observatory Tools

open access: yesOpen Astronomy, 2012
We present early results of our multiband study of the RATAN Cold Revised (RCR) catalogue obtained from seven cycles of the “Cold” survey carried with the RATAN-600 radio telescope at 7.6 cm in 1980-1999, at the declination of the SS 433 source.
Zhelenkova O. P.   +3 more
doaj   +1 more source

Galaxy Cluster Environments of Radio Sources

open access: yes, 2011
Using the Sloan Digital Sky Survey (SDSS) and the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) catalogs, we examined the optical environments around double-lobed radio sources. Previous studies have shown that multi-component radio sources
Abazajian   +63 more
core   +1 more source

Diffuse steep-spectrum sources from the 74 MHz VLSS survey

open access: yes, 2011
Galaxy clusters grow by a sequence of mergers with other clusters and galaxy groups. During these mergers, shocks and/or turbulence are created within the intracluster medium (ICM).
Abazajian   +80 more
core   +1 more source

Diffuse Radio Emission from Galaxy Clusters [PDF]

open access: yesSpace Science Reviews, 2019
In a growing number of galaxy clusters diffuse extended radio sources have been found. These sources are not directly associated with individual cluster galaxies.
R. V. Weeren   +8 more
semanticscholar   +1 more source

CHANDRA OBSERVATIONS OF 3C RADIO SOURCES WITH z < 0.3. II. COMPLETING THE SNAPSHOT SURVEY [PDF]

open access: yes, 2012
We report on the second round of Chandra observations of the 3C snapshot survey developed to observe the complete sample of 3C radio sources with z < 0.3 for 8 ks each.
F. Massaro   +21 more
semanticscholar   +1 more source

ATLBS Extended Source Sample: The evolution in radio source morphology with flux density [PDF]

open access: yes, 2012
Based on the ATLBS survey we present a sample of extended radio sources and derive morphological properties of faint radio sources. 119 radio galaxies form the ATLBS-Extended Source Sample (ATLBS-ESS) consisting of all sources exceeding 30" in extent and
Blundell   +21 more
core   +2 more sources

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