Results 81 to 90 of about 37,734 (223)

A Census of the Deep Radio Sky with the VLA. I. 10 GHz Survey of the GOODS-N Field

open access: yesThe Astrophysical Journal
We present the first high-resolution, high-frequency radio continuum survey that fully maps an extragalactic deep field: the 10 GHz survey of the Great Observatories Origins Deep Survey-North (GOODS-N) field. This is a Large Program of the Karl G. Jansky
Eric F. Jiménez-Andrade   +6 more
doaj   +1 more source

Strange and Odd Morphology Extragalactic Radio Sources (STROMERSs): A Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) Look at the Strange and Odd Radio Sources

open access: yesUniverse
We report the identification of an extremely rare and peculiar set of irregular radio sources, termed “STROMERSs” (STRange and Odd Morphology Extragalactic Radio Sources).ingThe irregular radio sources with very anomalous morphologies that make them ...
Soumen Kumar Bera   +4 more
doaj   +1 more source

Kiloparsec-Scale Jets in FR I Radio Galaxies and the Gamma-Ray Background

open access: yes, 2005
We discuss the contribution of kiloparsec-scale jets in FR I radio galaxies to the diffuse gamma-ray background radiation. The analyzed gamma-ray emission comes from inverse-Compton scattering of starlight photon fields by the ultrarelativistic electrons
Aharonian F.   +12 more
core   +1 more source

Source structure errors in radio-interferometric clock synchronization for ten measured distributions [PDF]

open access: yes
The effects of source structure on radio interferometry measurements were investigated. The brightness distribution measurements for ten extragalactic sources were analyzed.
Thomas, J. B.
core   +1 more source

Extragalactic source contributions to arcminute-scale Cosmic Microwave Background anisotropies

open access: yes, 2004
The possible contributions of the various classes of extragalactic sources (including, in addition to the canonical radio sources, GHz Peaked Spectrum sources, advection-dominated sources, starburst galaxies, high-redshift proto-spheroidal galaxies) to ...
Bennett   +63 more
core   +1 more source

Optical and radio properties of extragalactic radio sources with recurrent jet activity

open access: yes, 2017
We present a sample of 74 radio sources with recurrent jet activity. The sample consists of 67 galaxies, 2 quasars and 5 unidentified sources, selected from the published data or are newly recognized.
Jamrozy, M.   +3 more
core   +1 more source

Radio-Excess IRAS Galaxies: PMN/FSC Sample Selection

open access: yes, 2003
A sample of 178 extragalactic objects is defined by correlating the 60 micron IRAS FSC with the 5 GHz PMN catalog. Of these, 98 objects lie above the radio/far-infrared relation for radio-quiet objects.
Altschuler D. R.   +44 more
core   +1 more source

A Multimechanism Hybrid Model of Peaked-spectrum Radio Sources

open access: yesThe Astrophysical Journal
Peaked-spectrum (PS) sources exhibit turnover characteristics in their broad radio spectra. However, the mechanism underlying this phenomenon remains elusive.
Guang-Chen Sun   +8 more
doaj   +1 more source

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