Results 1 to 10 of about 149,109 (326)
Galaxy Formation and Chemical Evolution [PDF]
International Journal of Astronomy and Astrophysics, 2014 14 pages, 5 ...
S. Sahijpal
+6 more sources
Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation
Open Astronomy, 2010 We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
doaj +3 more sources
Formation and Evolution of Disk Galaxies [PDF]
Symposium - International Astronomical Union, 1999 We have developed a semianalitical approach to study galaxy formation and evolution in the cosmological context. Disk galaxies (dark matter halo+luminous disk) are considered to be formed through an extended process of gravitational collapse, whose character is determined by the statistical properties of the density fluctuation field assumed here to be
C. Firmani, V. Ávila-Reese
openalex +2 more sources
Models of Late-type Disk Galaxies: 1-D Versus 2-D
Open Astronomy, 2014 We investigate the effects of stochasticity on the observed galaxy parameters by comparing our stochastic star formation two-dimensional (2-D) galaxy evolution models with the commonly used one-dimensional (1-D) models with smooth star formation. The 2-D
Mineikis T., Vansevičius V.
doaj +3 more sources
Understanding Galaxy Formation and Evolution [PDF]
, 2006 The old dream of integrating into one the study of micro and macrocosmos is now a reality. Cosmology, astrophysics, and particle physics intersect in a scenario (but still not a theory) of cosmic structure formation and evolution called Lambda Cold Dark ...
A. A. Berlind +114 more
core +5 more sources
The formation and evolution of field massive galaxies [PDF]
Astrophysics and Space Science, 2003 The problem of the formation and evolution of field massive galaxies is briefly reviewed from an observational perspective. The motivations and the characteristics of the K20 survey are outlined. The redshift distribution of Ks<20 galaxies, the evolution of the rest-frame Ks-band luminosity function and luminosity density to z=1.5, the nature and ...
A. Cimatti
openalex +4 more sources
Merger Induced Globular Cluster Formation and Galaxy Evolution [PDF]
The Astrophysical Journal, 2008 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.
core +3 more sources
What Regulates Galaxy Evolution? Open Questions in Our Understanding of Galaxy Formation and Evolution [PDF]
New 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 ...
De Lucia, Gabriella +2 more
core +2 more sources
Cosmological evolution and hierarchical galaxy formation [PDF]
Monthly 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
The 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