Results 271 to 280 of about 206,467 (307)
Peaks in weak lensing mass maps for cluster astrophysics and cosmology. [PDF]
Proc Jpn Acad Ser B Phys Biol SciOguri M, Miyazaki S.
europepmc +1 more source
Cool Gas in High-Redshift Galaxies [PDF]
Annual Review of Astronomy and Astrophysics, 2013 Over the last decade, observations of the cool interstellar medium in distant galaxies via molecular and atomic fine structure line emission has gone from a curious look into a few extreme, rare objects, to a mainstream tool to study galaxy formation ...
Fabian Walter
exaly +6 more sources
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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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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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Chemical abundances in high-redshift galaxies: a powerful new emission line diagnostic
, 2016This Letter presents a new, remarkably simple diagnostic specifically designed to derive chemical abundances for high redshift galaxies. It uses only the Hα$\mathrm{H}\alpha$, [N ii] and [S ii] emission lines, which can usually be observed in a single ...
M. Dopita +3 more
semanticscholar +1 more source
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
openaire +1 more source
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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Bulge Growth Through Disc Instabilities in High-Redshift Galaxies
, 2015The role of disc instabilities, such as bars and spiral arms, and the associated resonances, in growing bulges in the inner regions of disc galaxies have long been studied in the low-redshift nearby Universe. There it has long been probed observationally,
F. Bournaud
semanticscholar +1 more source
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.
openaire +1 more source
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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