Results 151 to 160 of about 2,086 (188)
Extended hot dust emission around the earliest massive quiescent galaxy
Ji Z +16 more
europepmc +1 more source
Feedback mechanisms stopping the star formation in a pair of massive galaxies in the early Universe
Pérez-González P +21 more
europepmc +1 more source
On the dust temperatures of high-redshift galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Abstract Dust temperature is an important property of the interstellar medium (ISM) of galaxies. It is required when converting (sub)millimetre broad-band flux to total infrared luminosity (LIR), and hence star formation rate, in high-redshift galaxies. However, different definitions of dust temperatures have been used in the literature,
Lichen Liang +2 more
exaly +7 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
openaire +1 more source
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
openaire +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
openaire +1 more source
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.
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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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.
openaire +1 more source
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