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High-redshift galaxy populations
Nature, 2006We now see many galaxies as they were only 800 million years after the Big Bang, and that limit may soon be exceeded when wide-field infrared detectors are widely available. Multi-wavelength studies show that there was relatively little star formation at very early times and that star formation was at its maximum at about half the age of the Universe ...
Esther M, Hu, Lennox L, Cowie
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A database of galaxies at high redshifts
Astrophysics and Space Science, 2002In the past couple of years the amount of the data concerning the distant universe has increased significantly. It is the right time to start collecting what we have learned from these data in order to draw a picture of galaxy evolution. We have started building a database which puts together relevant information regarding high-z galaxies (z>1 ...
D. De Mello +2 more
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Simulating high-redshift galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 Recent observations have gathered a considerable sample of high-redshift galaxy candidates and determined the evolution of their luminosity function (LF). To interpret these findings, we use cosmological SPH simulations including, in addition to standard
R Salvaterra +2 more
exaly +2 more sources
1997
That we are in an evolving Cosmo where each single object, and the Universe as a whole, evolve in time has been accepted since a long time. The great excitement in current cosmology, as mentioned also by J. Peebles sometime before 1983, is that we have opened an observational and theoretical window in the world of mathematical models and we are now ...
Guido Chincarini, Paolo Saracco
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That we are in an evolving Cosmo where each single object, and the Universe as a whole, evolve in time has been accepted since a long time. The great excitement in current cosmology, as mentioned also by J. Peebles sometime before 1983, is that we have opened an observational and theoretical window in the world of mathematical models and we are now ...
Guido Chincarini, Paolo Saracco
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Symposium - International Astronomical Union, 2005
Mapping the history of star formation requires combining observations at many wavelengths. The most dramatic episodes of star formation occurred in high-redshift (z > 1) galaxies obscured by dust. These galaxies can be seen at submillimeter wavelengths.
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Mapping the history of star formation requires combining observations at many wavelengths. The most dramatic episodes of star formation occurred in high-redshift (z > 1) galaxies obscured by dust. These galaxies can be seen at submillimeter wavelengths.
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High Redshift Lyman Break Galaxies
2006Two of the most outstanding issues in modern astrophysics are what reionized the Universe and how did the first objects form. Observations of galaxies selected through the Lyman-Break technique indicate that UV photon output at the end of reionization was dominated by relatively faint low mass galaxies and not AGN.
Lehnert, M., Bremer, M.
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1992
A consistent picture of large-scale structure appears to be emerging from different types of observations including the spatial distribution of galaxies, clusters of galaxies, narrow pencil-beam surveys, and quasars. I describe these observations below. A network of large-scale superclusters, up to ~ 150 Mpc in scale, is suggested.
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A consistent picture of large-scale structure appears to be emerging from different types of observations including the spatial distribution of galaxies, clusters of galaxies, narrow pencil-beam surveys, and quasars. I describe these observations below. A network of large-scale superclusters, up to ~ 150 Mpc in scale, is suggested.
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The High Redshift 3CR Radio Galaxies: CD Galaxies in High Redshift Clusters
1998The old stellar populations of the 3CR radio galaxies at redshifts z ∼ 1 have been investigated using the HST and UKIRT. The radial intensity profiles of the galaxies are well matched out to radii τ ∼ 35kpc by de Vaucouleurs’ law with no requirement for an additional point source in all but two cases (3C22 and 3C41).
P. N. Best +2 more
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, 2014
Observations show a prevalence of high redshift galaxies with large stellar masses and predominantly passive stellar populations. A variety of processes have been suggested that could reduce the star formation in such galaxies to observed levels ...
R. Feldmann, L. Mayer
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Observations show a prevalence of high redshift galaxies with large stellar masses and predominantly passive stellar populations. A variety of processes have been suggested that could reduce the star formation in such galaxies to observed levels ...
R. Feldmann, L. Mayer
semanticscholar +1 more source