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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 understanding of how baryons condense into galaxies, what determines the structure of those ...
Abadi   +563 more
openaire   +5 more sources

Simulating Galaxy Formation [PDF]

open access: yesProceedings of the International School of Physics “Enrico Fermi”, 1995
A review on numerical simulations of galaxy formation is given. Different numerical methods to solve collisionless and gas dynamical systems are outlined and one particular simulation technique, Smoothed Particle Hydrodynamics, is discussed in some detail. After a short discussion of the most relevant physical processes which affect the dynamics of the
Steinmetz, Matthias
openaire   +4 more sources

DLAs AND GALAXY FORMATION [PDF]

open access: yesModern Physics Letters A, 2007
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.
KENTARO NAGAMINE, Pettini M., York D. G.
openaire   +3 more sources

Back to the Green Valley: How to Rejuvenate an S0 Galaxy through Minor Mergers

open access: yesGalaxies, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Michela Mapelli
doaj   +3 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 ...
  +5 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

Rapid Quenching of Galaxies at Cosmic Noon

open access: yesThe Astrophysical Journal, 2023
The existence of massive quiescent galaxies at high redshift seems to require rapid quenching, but it is unclear whether all quiescent galaxies have gone through this phase and what physical mechanisms are involved.
Minjung Park   +8 more
doaj   +1 more source

On the Origin and Evolution of the Intra-Cluster Light: A Brief Review of the Most Recent Developments

open access: yesGalaxies, 2021
Not all the light in galaxy groups and clusters comes from stars that are bound to galaxies. A significant fraction of it constitutes the so-called intracluster or diffuse light (ICL), a low surface brightness component of groups/clusters generally found
Emanuele Contini
doaj   +1 more source

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