Results 1 to 10 of about 45,923 (261)
We review the current theory of how galaxies form within the cosmological framework provided by the cold dark matter paradigm for structure formation. Beginning with the pre-galactic evolution of baryonic material we describe the analytical and numerical understanding of how baryons condense into galaxies, what determines the structure of those ...
Andrew Benson
exaly +4 more sources
It is argued that within the standard Big Bang cosmological model the bulk of the mass of the luminous parts of the large galaxies likely had been assembled by redshift z ∼ 10. Galaxy assembly this early would be difficult to fit in the widely discussed adiabatic cold dark matter model for structure formation ...
+5 more sources
The epoch of galaxy formation [PDF]
Recent advances in technology have enabled astronomers to observe fainter, and more distant, galaxies and to study the processes of galaxy formation and evolution. Recent observations suggest that the bulk of the stars in the universe formed between z = 3 (∼1 × 10^9 years after the big bang) and the present.
Spergel, David N. +2 more
openaire +3 more sources
Galaxy Threshing and the Formation of Ultracompact Dwarf Galaxies [PDF]
Recent spectroscopic and morphological observational studies of galaxies around NGC 1399 in the Fornax Cluster (Drinkwater et al. 2000b) have discovered several `ultra-compact dwarf' galaxies with intrinsic sizes of $\sim$ 100 pc and absolute $B$ band magnitudes ranging from -13 to -11 mag.
Bekki, Kenji +2 more
openaire +5 more sources
The role of submillimetre galaxies in hierarchical galaxy formation [PDF]
We study the role of submillimetre galaxies (SMGs) in the galaxy formation process in the Lambda Cold Dark Matter cosmology. We use the Baugh et al. (2005) semi-analytical model, which matches the observed SMG number counts and redshift distribution by assuming a top-heavy initial mass function (IMF) in bursts triggered by galaxy mergers.
González, J.E. +3 more
openaire +3 more sources
Theories of galaxy formation via hierarchical clustering of cold dark matter and by fragmentation of gaseous pancakes or shells are reviewed and compared. Dissipative processes are crucial to all theories of galaxy formation, and are discussed in terms of a simple model involving multiple cloud interactions.
openaire +1 more source
DLAs AND GALAXY FORMATION [PDF]
Damped Lyman-α systems (DLAs) are useful probes of star formation and galaxy formation at high-redshift (hereafter high-z). We study the physical properties of DLAs and their relationship to Lyman break galaxies (LBGs) using cosmological hydrodynamic simulations based on the concordance Λ cold dark matter model.
openaire +2 more sources
THE TWO PHASES OF GALAXY FORMATION [PDF]
13 pages, 13 figures, accepted for publication in ...
Oser, L. +4 more
openaire +3 more sources
The Outside‐In Formation of Elliptical Galaxies [PDF]
15 pages, 10 figures, ApJ ...
PIPINO A +2 more
openaire +3 more sources
Dwarf Galaxy Formation Induced by Galaxy Interactions [PDF]
9 pages (including 1 figure), To appear in ApJ, 543 (Part 1) Nov 1, 2000 (ApJ volume Nr was wrong in the previous version ...
Okazaki, T., Taniguchi, Y.
openaire +2 more sources

