Results 41 to 50 of about 5,210 (162)
Chemical evolution of galaxies and galaxy formation mechanisms [PDF]
Proceedings of Baryons in Dark Matter Halos — PoS(BDMH2004), 2004 I will describe the results if models for the chemical evolution of galaxies of different morphological type (ellipticals, spirals and irregulars), and compare them with observations in order to impose constraints on the mechianisms of formation and evolution of galaxies.
openaire +1 more source
The accretion history of the Milky Way
Astronomy & AstrophysicsSeveral studies have associated globular clusters (GCs) with former Galactic accretion events by comparing their positions in the energy-angular momentum (E-Lz) plane, an approach further supported by similarities in their age-metallicity relations ...
Akib Istiak +2 more
doaj +1 more source
Formation and Evolution of Nucleated Galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractWe discuss how stellar galactic nuclei (SGN) form and evolve during galaxy formation and evolution based on chemodynamical simulations on the central regions (1-1000 pc) of galaxies. Our simulations demonstrate that dissipative formation of SGN through rapid transfer of gas into the central 10 pc of galaxies is more consistent with recent ...
openaire +1 more source
The impact of early massive galaxy formation on the cosmic microwave background
Nuclear Physics BThe Cosmic Microwave Background (CMB) anisotropies, corrected for foreground effects, form the foundation of cosmology and support the Big Bang model.
Eda Gjergo, Pavel Kroupa
doaj +1 more source
Modelling the formation and evolution of disk galaxies
, 2007 Inspired by recent work on feedback in disk galaxies (Efstathiou 2000, Silk 2003) and on the angular momentum distribution in simulated gas halos (Sharma and Steinmetz 2005), a fully dynamic model of disk galaxy formation and evolution has been developed.
Stringer, M. J., Benson, A. J.
openaire +3 more sources
Formation and Dynamical Evolution of Galaxies and of their Components
AIP Conference Proceedings, 2005 8 pages, 8 figures. Invited review to the Conference on Planetary Nebulae as Astronomical Tools (Gdansk, Poland, 28 June-2 July 2005)
openaire +2 more sources
pop-cosmos: A Comprehensive Picture of the Galaxy Population from COSMOS Data
The Astrophysical Journal Supplement SeriesWe present pop-cosmos : a comprehensive model characterizing the galaxy population, calibrated to 140,938 ( r < 25 selected) galaxies from the Cosmic Evolution Survey (COSMOS) with photometry in 26 bands from the ultraviolet to the infrared. We construct
Justin Alsing +6 more
doaj +1 more source
Simulations of galaxy formation and evolution [PDF]
Astronomische Nachrichten, 2012 AbstractWe discuss recent results of hydrodynamical simulations of galaxy formation in a Λ Cold Dark Matter universe, focusing on galaxies of similar mass to the Milky Way, and with a variety of formation and merger histories. We investigate the present‐day properties of disks and spheroids, in terms of stellar ages, spatial structure and dynamics; as ...
openaire +1 more source
Evidence for a Shallow Evolution in the Volume Densities of Massive Galaxies at z = 4–8 from CEERS
The Astronomical JournalWe analyze the evolution of massive (log _10 [ M _⋆ / M _⊙ ] > 10) galaxies at z ∼ 1–4 selected from JWST Cosmic Evolution Early Release Survey (CEERS). We infer the physical properties of all galaxies in the CEERS NIRCam imaging through spectral energy ...
Katherine Chworowsky +38 more
doaj +1 more source
The Formation and Evolution of Galaxies
, 1998 Galaxies represent the visible fabric of the Universe and there has been considerable progress recently in both observational and theoretical studies. The underlying goal is to understand the present-day diversity of galaxy forms, masses and luminosities.
openaire +2 more sources