Results 281 to 290 of about 206,467 (307)

High Redshift Radio Galaxies

Annual Review of Astronomy and Astrophysics, 1993
High redshift galaxies that host powerful radio sources are examined. An overview is presented of the content of radio surveys: 3CR and 3CRR, 4C and 4C/USS, B2/1 Jy, MG, MRC/1Jy, Parkes/PSR, B3, and ESO Key-Project. Narrow-line radio galaxies in the visible and UV, the source of ionization and excitation of the emission lines, emission-line ...
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Cluster Galaxies at High Redshift

1988
Modern CCD instrumentation has made it possible to obtain photometric and spectroscopic data on normal galaxies in clusters at redshifts up to nearly unity. In this paper we discuss a survey for such clusters and preliminary spectroscopic results for galaxies in a sample of 7 clusters near redshift 0.5, and another at z=0.75.
James E. Gunn, Alan Dressier
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Are High Redshift Galaxies Interacting?

1990
I am uncomfortable. I feel in the position of an agnostic who has been asked to praise God close to the beginning of a religious revival meeting. Unfortunately, as far as mergers at high redshifts is concerned, I cannot bring myself to do this. Instead, I propose to present you with evidence that peculiar phenomena are occurring in the most distant ...
G. K. Miley, K. C. Chambers
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Starburst Galaxies at High Redshift

1997
The properties of ultraluminous and hyperluminous galaxies are reviewed and it is argued that the majority of the far infrared radiation from these galaxies is powered by starbursts. The evidence that the starburst population is also seen in the sub-mJy radio source-counts is reviewed and a model for the source-counts from radio to X-rays is presented.
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Cosmology with Galaxies at High Redshifts

1991
Following some remarks on the methodology of the classical cosmological tests, recent observations of galaxies at high redshift are examined to see whether they place any constraints on the cosmological models. It is concluded that, at least at present, they do not.
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Galaxy Morphology at High Redshift

2014
The morphology of galaxies at high redshift ranges from elliptical and spiral to clumpy, including chains, clump clusters, doubles and tadpoles. Clumpy galaxies observed in the Hubble Ultra Deep Field at redshifts z = 1–5 contain star-forming complexes that are hundreds of times more massive than those forming in local galaxies, reflecting the more ...
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Simulations of the formation, evolution and clustering of galaxies and quasars

Nature, 2005
Volker Springel, Simon D M White, Adrian Jenkins   +2 more
exaly  

Properties of galaxies reproduced by a hydrodynamic simulation

Nature, 2014
Mark Vogelsberger, Shy Genel, Volker Springel   +2 more
exaly  

High molecular gas fractions in normal massive star-forming galaxies in the young Universe

Nature, 2010
Linda Tacconi, Reinhard Genzel, Alberto Bolatto   +2 more
exaly  

Strangulation as the primary mechanism for shutting down star formation in galaxies

Nature, 2015
Roberto Maiolino
exaly