Results 11 to 20 of about 1,091,526 (300)
Interpreting the clustering of radio sources [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 7 pages latex, 6 figures, to appear in MNRAS, replaced version corrects typo in expression for w(theta)
Cress, C. M., Kamionkowski, M.
openaire +2 more sources
The Counts of Radio Sources [PDF]
Symposium - International Astronomical Union, 1969 Following the advice of Professor Zel'dovich, I will begin with two platitudes – first, when we consider the implications of the counts of radio sources, we must look at all the counts of radio sources at all frequencies; second, when we attempt to evaluate the implications of the source counts, we should use proper cosmological models and not rely on ...
openaire +1 more source
Redshifts of CLASS Radio Sources [PDF]
The Astronomical Journal, 2000 Spectroscopic observations of a sample of 42 flat-spectrum radio sources from the Cosmic Lens All-Sky Survey (CLASS) have yielded a mean redshift of $ = 1.27$ with an RMS spread of 0.95, at a completeness level of 64%. The sample consists of sources with a 5-GHz flux density of 25-50 mJy, making it the faintest flat-spectrum radio sample for which the ...
Marlow, DR +5 more
openaire +3 more sources
Classical and Relativistic Evolution of an Extra-Galactic Jet with Back-Reaction
Galaxies, 2018 We consider a turbulent jet that is moving in a Lane⁻Emden ( n = 5 ) medium. The conserved quantity is the energy flux, which allows finding, to first order, an analytical expression for the velocity and an approximate trajectory.
Lorenzo Zaninetti
doaj +1 more source
Equipartition Jet Model for the Seyfert 1 Galaxy 3C120 [PDF]
Journal of Astronomy and Space Sciences, 2003 The motion of 3C120 Jet relative to the core is reasonably uniform and the VLBI scale jet connects outwards to a VLA ˜ 100 kpc scale. We measured the jet width variation from the center and found some indication of a power law which indicates the jet ...
Siek Hyung
doaj +1 more source
Radio properties of Compact Steep Spectrum and GHz-Peaked Spectrum radio sources [PDF]
, 2015 Compact steep spectrum (CSS) and GHz-peaked spectrum (GPS) radio sources represent a large fraction of the extragalactic objects in flux density-limited samples.
Alexander +87 more
core +2 more sources
Compact radio sources: Triggering and feedback
Astronomische Nachrichten, 2021 AbstractCSS/GPS objects represent a key stage in the evolution of powerful radio AGN in which the jets are expanding through the denser, kpc‐scale ISM in the host galaxies. Therefore, it is important both to understand how such radio AGN are triggered as galaxies evolve and to directly quantify the impact of the outflows induced by the jet‐cloud ...
Clive Tadhunter +3 more
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VLBI detection of an Infrared-Faint Radio Source [PDF]
, 2007 Infrared-Faint Radio Sources represent a new and unexpected class of object which is bright at radio wavelengths but unusually faint at infrared wavelengths.
Adam Deller +14 more
core +4 more sources
An Atlas of Extragalactic Radio Sources [PDF]
Symposium - International Astronomical Union, 1996 Our Atlas of Extragalactic Radio Sources will present high-quality images of the nearer half of “3CRR”, the sample defined by Laing, Riley & Longair (1983). This is the best-studied complete sample of extragalactic radio sources. All 173 members have secure redshifts and most have been imaged in the radio at high resolution.
Leahy, J.P., Bridle, A., Strom, R.G.
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Radio source extraction with ProFound [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 21 pages, 17 figures.
Hale, C +5 more
openaire +5 more sources