Results 11 to 20 of about 172,368 (310)

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   +3 more sources

MERGER-INDUCED GLOBULAR CLUSTER FORMATION AND GALAXY EVOLUTION [PDF]

open access: yesThe Astrophysical Journal, 2009
Based on the earlier work of Gunn and McCrea we model the formation of globular clusters in merging galaxies. Neutral hydrogen observations of dwarf irregular galaxies as well as more luminous systems are used to provide the key parameters of the model.
Hartwick, F. D. A.
openaire   +4 more sources

What Regulates Galaxy Evolution? Open questions in our understanding of galaxy formation and evolution [PDF]

open access: yesNew Astronomy Reviews, 2014
In April 2013, a workshop entitled "What Regulates Galaxy Evolution" was held at the Lorentz Center. The aim of the workshop was to bring together the observational and theoretical community working on galaxy evolution, and to discuss in depth of the current problems in the subject, as well as to review the most recent observational constraints.
De Lucia, Gabriella   +2 more
openaire   +3 more sources

GOLDRUSH. IV. Luminosity Functions and Clustering Revealed with ∼4,000,000 Galaxies at z ∼ 2–7: Galaxy–AGN Transition, Star Formation Efficiency, and Implication for Evolution at z > 10 [PDF]

open access: yesAstrophysical Journal Supplement Series, 2021
We present new measurements of rest-UV luminosity functions and angular correlation functions from 4,100,221 galaxies at z ∼ 2–7 identified in the Subaru/Hyper Suprime-Cam survey and CFHT Large Area U-band Survey. The obtained luminosity functions at z ∼
Y. Harikane   +18 more
semanticscholar   +1 more source

Cosmological evolution and hierarchical galaxy formation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
We provide a new multi-waveband compilation of the data describing the cosmological evolution of quasars, and discuss a model that attributes the evolution to variation in the rate of merging between dark halos in a hierarchical universe. We present a new Press-Schechter calculation of the expected merger rate and show that this can reproduce the ...
Percival, W, Miller, L
openaire   +4 more sources

A self-similar model of galaxy formation and dark halo relaxation [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2023
We develop a spherical self-similar model for the formation of a galaxy through gas collapsing in an isolated self-gravitating dark matter halo. As is well known, the self-similarity assumption makes the problem eminently tractable by reducing it to a ...
Premvijay Velmani, A. Paranjape
semanticscholar   +1 more source

CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST [PDF]

open access: yesAstrophysical Journal Letters, 2022
We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z ∼ 0.5 to >10 using several imaging and ...
S. Finkelstein   +66 more
semanticscholar   +1 more source

Morphologies of Galaxies at z ≳ 9 Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at z ∼ 12

open access: yesThe Astrophysical Journal, 2023
We present morphologies of galaxies at z ≳ 9 resolved by JWST/NIRCam 2–5 μ m imaging. Our sample consists of 22 galaxy candidates identified by stringent dropout and photo- z criteria in GLASS, CEERS, SMACS J0723, and Stephan’s Quintet flanking fields ...
Yoshiaki Ono   +10 more
doaj   +1 more source

Globular cluster formation and evolution in the context of cosmological galaxy assembly: open questions [PDF]

open access: yesProceedings of the Royal Society A, 2018
We discuss some of the key open questions regarding the formation and evolution of globular clusters (GCs) during galaxy formation and assembly within a cosmological framework.
D. Forbes   +11 more
semanticscholar   +1 more source

New Insight on Galaxy Formation and Evolution from Keck Spectroscopy of the Hawaii Deep Fields [PDF]

open access: yes, 1996
We present the results of spectroscopic studies with the LRIS spectrograph on Keck of two of the Hawaii deep survey fields. The 393 objects observed cover an area of 26.2 square arcmin and constitute a nearly complete sample down to K = 20, I = 23, and B
L. Cowie, A. Songaila, E. Hu, J. Cohen
semanticscholar   +1 more source

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