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Nature, 1977
Observations of extended radio sources are interpreted in terms of a picture for radio source evolution involving multiple ejections of ram pressure confined plasmons in which instabilities lead to the formation of turbulent hot spots and to in situ particle acceleration.
W. A. Christiansen +2 more
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Observations of extended radio sources are interpreted in terms of a picture for radio source evolution involving multiple ejections of ram pressure confined plasmons in which instabilities lead to the formation of turbulent hot spots and to in situ particle acceleration.
W. A. Christiansen +2 more
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Annals of the New York Academy of Sciences, 1974
The discrete sources of radio emission were first distinguished from the general background radiation during the 1940’s as a result of their rapid amplitude scintillations ; and initially, it was thought that the scintillations were due to fluctuations in the intrinsic intensity of the discrete sources. Assuming that the dimensions of the sources could
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The discrete sources of radio emission were first distinguished from the general background radiation during the 1940’s as a result of their rapid amplitude scintillations ; and initially, it was thought that the scintillations were due to fluctuations in the intrinsic intensity of the discrete sources. Assuming that the dimensions of the sources could
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A census of baryons in the Universe from localized fast radio bursts
Nature, 2020More than three-quarters of the baryonic content of the Universe resides in a highly diffuse state that is difficult to detect, with only a small fraction directly observed in galaxies and galaxy clusters 1 , 2 . Censuses of the nearby Universe have used
J. Macquart +19 more
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1991
The discovery of high redshift radio galaxies at z ≤ 4 has unleashed a host of questions about their nature. Many new objects are being found, and their unusual properties are being uncovered. They generally exhibit the “alignment effect”, wherein their highly elongated lumpy morphologies are lined up along the axes of their powerful radio sources ...
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The discovery of high redshift radio galaxies at z ≤ 4 has unleashed a host of questions about their nature. Many new objects are being found, and their unusual properties are being uncovered. They generally exhibit the “alignment effect”, wherein their highly elongated lumpy morphologies are lined up along the axes of their powerful radio sources ...
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Radio Galaxies and Their Environment
2002In this paper we review the properties of radio galaxies in connection to the effect of the dynamic gaseous environment inside clusters in which they are embedded. The external gas can interact with a radio source in different ways: modifying its morphology via ram-pressure, confining the radio lobes, possibly feeding the active nucleus, enhancing star
Feretti L. 1, Venturi T. 1
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Cosmological Evolution in Radio Galaxies
Nature, 1971ROWAN-ROBINSON has presented evidence that radio galaxies exhibit remarkably strong evolutionary effects with cosmological epoch1. Examination of his evidence, however, indicates that, although an evolutionary effect may indeed be present, no reliable estimate of the time scale involved can yet be made in the way he proposes.
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Radio Emission from Galaxies: Exploding Galaxies
1969Besides the well-known “optical window” from the ozone limit at about 3000 A to the infrared at about 22 μ the Earth’s atmosphere has a second range of transparency from λ ≈ 1 millimetre to as far as the onset of ionospheric reflexion at λ ≈ 30 metres. Since K. G. Jansky’s discovery (1931) radio astronomy has exploited this spectral range.
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