نتایج جستجو برای: cosmogony
تعداد نتایج: 181 فیلتر نتایج به سال:
We take advantage of the largest high-resolution simulation of cosmic structure growth ever carried out – the Millennium Simulation of the concordance ΛCDM cosmogony – to study how the star formation histories, ages and metallicities of elliptical galaxies depend on environment and on stellar mass. We concentrate on a galaxy formation model which is tuned to fit the joint luminosity/colour/morp...
We present results of large N−body-hydrodynamic simulations of galaxy formation. Our simulations follow the formation of galaxies in cubic volumes of side 100Mpc, in two versions of the cold dark matter (CDM) cosmogony: the standard, Ω = 1 SCDM model and the flat, Ω = 0.3 ΛCDM model. Over 2000 galaxies form in each of these simulations. We examine the rate at which gas cools and condenses into ...
Hesiod devises his cosmogony in order to provide the basic context for his account, part narrative and part genealogy, of Zeus’ conquest of the Titans and establishment of the primacy of justice among gods and humans. The project of this essay is to explore Hesiod’s choice of ‘Chaos’ as the ‘first’ of all the divinities to come into being. The full significance of Hesiod’s choice emerges only i...
We present decompositions of the rotation curves of distant spiral galaxies into contributions due to their bulges, disks, and putative dark haloes. In order to set constraints on the ambiguities of the decompositons we interpret the morphology of the spiral structures quantitatively in the framework of density wave theory. Galaxy models constrained in such a way show that the distant galaxies,...
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