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Theoretical Challenges in Galaxy Formation [PDF]

open access: bronzeAnnual Review of Astronomy and Astrophysics, 2017
Numerical simulations have become a major tool for understanding galaxy formation and evolution. Over the decades the field has made significant progress.
Thorsten Naab
exaly   +4 more sources

Galaxy Formation Theory [PDF]

open access: yesPhysics Reports, 2010
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
Abadi   +563 more
core   +4 more sources

DLAs and Galaxy Formation [PDF]

open access: yesModern Physics Letters A, 2007
Damped Lyman-alpha systems (DLAs) are useful probes of star formation and galaxy formation at high redshift. We study the physical properties of DLAs and their relationship to Lyman-break galaxies using cosmological hydrodynamic simulations based on the ...
KENTARO NAGAMINE, Pettini M., York D. G.
core   +2 more sources

Galaxy formation [PDF]

open access: yesProceedings of the National Academy of Sciences, 1998
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 ...
Malcolm S. Longair
semanticscholar   +5 more sources

Formation of Galaxy Clusters [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2012
In this review, we describe our current understanding of cluster formation: from the general picture of collapse from initial density fluctuations in an expanding Universe to detailed simulations of cluster formation including the effects of galaxy ...
Andrey Kravtsov, Stefano Borgani
exaly   +3 more sources

The Formation of Galaxy Disks

open access: yes, 2008
We present a new set of multi-million particle SPH simulations of the formation of disk dominated galaxies in a cosmological context. Some of these galaxies are higher resolution versions of the models already described in Governato et al (2007).
Brook, C., Governato, F., Mayer, L.
core   +3 more sources

Fractional yields inferred from halo and thick disk stars [PDF]

open access: yesSerbian Astronomical Journal, 2013
Linear [Q/H]-[O/H] relations, Q = Na, Mg, Si, Ca, Ti, Cr, Fe, Ni, are inferred from a sample (N = 67) of recently studied FGK-type dwarf stars in the solar neighbourhood including different populations (Nissen and Schuster 2010, Ramirez et al ...
Caimmi R.
doaj   +1 more source

Constraints on Fluctuating Star Formation Rates for Intermediate-mass Galaxies with Hα and UV Luminosities

open access: yesThe Astrophysical Journal, 2023
We study the recent star formation histories (SFHs) of 575 intermediate-mass galaxies (IMGs, 10 ^9 ≤ M / M _⊙ ≤ 10 ^10 ) in COSMOS at 0.3 < z < 0.4 by comparing their H α and UV luminosities.
Shannon G. Patel   +4 more
doaj   +1 more source

Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies

open access: yesThe Astrophysical Journal Letters, 2023
Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu   +8 more
doaj   +1 more source

The epoch of galaxy formation [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
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

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